Abstract Tool wear is a natural phenomenon in all metal cutting operations due to high friction at tool work interface, which affect the tool life, product quality and accuracy of work. For minimizing the friction at tool work interface the cutting fluids or lubricants are used for cooling and lubrication, hence improvement in machining efficiency. But if the quantity and quality of lubricants are unattended or underestimated then it creates problems like soil, water, environmental pollution and also makes the machining process uneconomical. The different cooling and lubrication techniques have been developed today. So it is necessity of present day scenario of machining to work with technology which would not degrade the environment, face the competition and have better quality of products. Different research shows that conventional Flood lubrication is limited by health hazards, misting and sometime uneconomical as compared to other techniques, due to its high discharge rate of fluid. These problems have been overcome by using dry machining. Studies shows that dry machining also becomes non efficient and uneconomical during cutting of harder materials at higher cutting speed, feed and depth of cut, although it is environmental friendly and economical at particular machining level. So to minimize all these Problems of health hazards, non-economy, intense tool wear in case of flood cooling and dry machining, the minimum quantity lubrication (MQL) has been applied in this present research. The effect of varying the nozzle stand-off distance and lubricant pressure have been considered in this study, to find out the best results in terms of cutting temperature. The experimentation has been conducted during turning of EN- 31 Alloy Steel with minimum quantity lubrication at flow rate of 150 ml/hr having vegetable based oil. The temperature has been measured by K- type thermocouple .The vegetable oil has been selected due to its environmental friendly behavior and does not produce health hazards, like mineral oil during flood lubrication.
Impact of varying the nozzle stand off distance on cutting temperature in t...eSAT Publishing House
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
2nd progress presentation on Minimum Quantity Lubrication(MQL) with vegitable...Nadaraja Sarmilan
This is a research based project of improving machining process as well as the environmental conditions using novel coconut oil based cutting fluid under Minimum Quantity Lubrication(MQL). In order to achieve the testing situations, the conceptual design of the experimental setup was finalized by following best solutions given through the morphological analysis of existing MQL systems. Solid models of nozzles, nozzle holding component, MWF tank, MWF tank support and finalized experimental setup were designed by solid modeling software. To corroboration the importance of novel vegetable oil based lubricant, the machining performances such as surface roughness and chip formation were evaluated.
An experiental investigation of effect of cutting parameters and tool materia...eSAT Publishing House
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
An experiental investigation of effect of cutting parameters and tool materia...eSAT Journals
Abstract The major needs of machining are high material removal rate, good work surface finish and low tool wear. Industries are hiring to increase economical benefits by reducing the cost of production. These objectives can be achieved by using proper cutting tool material and cutting parameters. This report presents comparisons of two different coated carbide inserts under different cutting parameters used during machining of cylinder liners made up of grey cast iron. The comparison has been realized through the tool life tests and productivity. The measurement has been carried out from rough boring operation at three cutting speed (Vc) and feed rate (f). Depth of cut (doc) is kept constant at 1.5mm. Cutting tool used in this work is titanium nitride (TiN) coated carbide and comparing with Multilayer coated tool is titanium nitride (TiN) + titanium carbo nitride (TiCN) + Aluminium oxide (Al2O3) coated carbide inserts. The type of the insert is SNMG 120408. Cutting conditions used is speed (Vc) 100m/min, 125m/min, 150m/min. Feed rate (f) 0.25mm/rev,0.3mm/rev,0.35mm/rev. Finally results of the present work determine the appropriate parameter for increasing the tool life, and productivity. Key words: Tool life, Coated tool material, Process parameters, Productivity.
Impact of varying the nozzle stand off distance on cutting temperature in t...eSAT Publishing House
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
2nd progress presentation on Minimum Quantity Lubrication(MQL) with vegitable...Nadaraja Sarmilan
This is a research based project of improving machining process as well as the environmental conditions using novel coconut oil based cutting fluid under Minimum Quantity Lubrication(MQL). In order to achieve the testing situations, the conceptual design of the experimental setup was finalized by following best solutions given through the morphological analysis of existing MQL systems. Solid models of nozzles, nozzle holding component, MWF tank, MWF tank support and finalized experimental setup were designed by solid modeling software. To corroboration the importance of novel vegetable oil based lubricant, the machining performances such as surface roughness and chip formation were evaluated.
An experiental investigation of effect of cutting parameters and tool materia...eSAT Publishing House
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
An experiental investigation of effect of cutting parameters and tool materia...eSAT Journals
Abstract The major needs of machining are high material removal rate, good work surface finish and low tool wear. Industries are hiring to increase economical benefits by reducing the cost of production. These objectives can be achieved by using proper cutting tool material and cutting parameters. This report presents comparisons of two different coated carbide inserts under different cutting parameters used during machining of cylinder liners made up of grey cast iron. The comparison has been realized through the tool life tests and productivity. The measurement has been carried out from rough boring operation at three cutting speed (Vc) and feed rate (f). Depth of cut (doc) is kept constant at 1.5mm. Cutting tool used in this work is titanium nitride (TiN) coated carbide and comparing with Multilayer coated tool is titanium nitride (TiN) + titanium carbo nitride (TiCN) + Aluminium oxide (Al2O3) coated carbide inserts. The type of the insert is SNMG 120408. Cutting conditions used is speed (Vc) 100m/min, 125m/min, 150m/min. Feed rate (f) 0.25mm/rev,0.3mm/rev,0.35mm/rev. Finally results of the present work determine the appropriate parameter for increasing the tool life, and productivity. Key words: Tool life, Coated tool material, Process parameters, Productivity.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
Performance evaluation of ti n coated carbide insert for optimum surface roug...eSAT Journals
Abstract In manufacturing industry, beside the dimensional and geometric tolerance of a component, surface quality is most commonly specified requirements. Surface roughness plays an important role in the performance of the component. This paper presents a study of the influence of the cutting parameters on the surface roughness during the turning of AISI1045 steel with TiN coated carbide tool. The design of experiments based on the Taguchi technique. The objective was to optimization of the machining parameters as cutting speed, feed rate and depth of cut for surface roughness. Main effect plots are generated and analyzed to find out the relationship between them. Afterwords a confirmation test were performed to make a comparison between the predicted results and the theoretical results. Keywords: TiN carbide insert, AISI 1045 alloy steel, Taguchi method, Surface roughness, ANOVA
COMPARISON OF MAIN EFFECT OF VEGETABLE OIL AND AL2O3 NANOFLUIDS USED WITH MQL...IAEME Publication
The growing demands for high productivity of machining need use of high cutting velocity and feed rate. Such machining inherently produces high cutting temperature, which not only reduces tool life but also impairs the product quality. Application of cutting fluids changes the performance of machining operations because of their lubrication, cooling, and chip flushing functions. But the conventional cutting fluids are not that effective in such high production machining, particularly in continuous cutting of materials likes steels. So Nanofluids have novel properties that make them potentially useful in heat transfer medium in cutting zone and Minimum quantity lubrication (MQL) presents itself as a viable alternative for turning with respect to tool wear, heat dissipation, and machined surface quality.
International Journal of Engineering Research and Development (IJERD)IJERD Editor
journal publishing, how to publish research paper, Call For research paper, international journal, publishing a paper, IJERD, journal of science and technology, how to get a research paper published, publishing a paper, publishing of journal, publishing of research paper, reserach and review articles, IJERD Journal, How to publish your research paper, publish research paper, open access engineering journal, Engineering journal, Mathemetics journal, Physics journal, Chemistry journal, Computer Engineering, Computer Science journal, how to submit your paper, peer reviw journal, indexed journal, reserach and review articles, engineering journal, www.ijerd.com, research journals,
yahoo journals, bing journals, International Journal of Engineering Research and Development, google journals, hard copy of journal
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
Use of cutting fluids in machining processes can reduce the cutting temperature and provides lubrication to tool and work piece. These translate to longer tool life and improved surface quality. Metalworking fluids are a major cause of health hazards for operators apart from being sources of environmental pollution thus necessitating research in dry and minimum quantity lubrication (MQL) machining. The introduction of coolant techniques such as near-dry machining so called minimum quantity lubrication (MQL) and cryogenic coolant have shown promising performances especially in terms of cutting tool life. Nowadays, MQL is widely used in machining performances.
Studies on jet penetration and kerf width at various operating pressure in ma...eSAT Journals
Abstract Abrasive Water Jet (AWJ) machining is one of the non-traditional machining method popular method for machining of hard, heat sensitive and brittle materials. The present work attempts to investigate the effect of operating pressure on depth of penetration and kerf characteristics generated while machining of D2 heat treated steel. It is found that increase in operating pressure increases the depth of penetration and decreases the surface taper on the work-piece. Keywords: Kerf width, Depth of cut, Operating pressure, AWJ Machining
The big challenge of the mass production firms is concentrated for achieving high quality
products with good dimensionability with high productivity, less wear on the cutting insert, less use
of cutting fluid, within less time. This paper present dissertation work of an investigation of turning
process parameters on hard EN 31 material, for optimization of surface roughness, material removal
rate, machining time in wet and minimum quantity lubrication system. The experiment is carried out
by considering four controllable input variables namely cutting speed, feed rate, depth of cut and
insert nose radius in the presence of wet & MQL system. This experiment also present the relation
between chip formations and controllable variables along with chip thickness, chip colors & chip
velocity from which its effect on insert wear, quality of product can be easily found out, because of
chip morphology gives indirectly the effect of it on the insert wear. In this dissertation work
minimum quantity lubrication system is used for reducing the cutting zone temperature properly and
very fastly. Finally comparison is carried out between wet and minimum quantity lubrication system
from which one can easily identify which system is better for higher productivity along with high
surface finish. This work also present the productivity (MRR) concept in production. The design of
experiment and optimization of surface roughness, material removal rate, machining time is carried
out by using response surface methodology (RSM). Central composite design method is used (CCD)
for the total experimental design work and its analysis and also for optimization of turning process
parameter by which wastage of the machining time, power can be avoided.
Abrasive water jet review and parameter selection by AHP method.IOSR Journals
An Abrasive Water Jet is one of the most recently developed non-traditional manufacturing
processes. Abrasive water jet offers the potential for the development in cutting which is less sensitive to
material properties, has virtually no thermal effects, and imposes minimal stresses. As it is a cold process has
also important applications where heat-affected zones are to be avoided. In this work, a deep study of this newer
non-conventional technique of machining i.e., abrasive water jet machining is done. In this paper more focus is
on selection of various process parameters like-angle of impact, Pressure inside the pumping system, abrasive
material type, Stand-off distance, focusing tube diameter, nozzle speed, abrasive mass flow rate and target
material properties for getting the required output like- depth of cut and cut quality. For cutting Stainless steel
(Grade 304), important task is to find out a few parameters which influence more. With the help of Analytical
Hierarchy Process technique the selection of a few parameters are done which are comparatively more
influencing. Weighteges are given to parameters on the basis of previous study and experience of owner of the
company who is dealing with abrasive water jet technology since many years.
OPTIMIZATION OF TURNING PROCESS PARAMETER IN DRY TURNING OF SAE52100 STEELIAEME Publication
This paper presents the optimization of surface roughness & material removal rate in dry turning of SAE52100 steel. Carbide inserts were used for machining of SAE 52100 to study effects of process parameters [Cutting speed (S), Feed (F) and depth of cut (d)]. These models can be effectively used to predict the surface roughness (Ra) & material removal rate of the workpiece. The big challenge of the Micro, small& medium industries in India for achieving high quality
products with increased productivity.
Analysis Of The Structure Of A Material Used In The Manufacture Of Thermal Ch...IJERA Editor
The dynamic stability of machine has its own importance in the quality of the machined product. With the development of new technologies for cutting tools, as the geometries and materials, cutting speeds used today reach values inconceivable for two decades. In the automotive industry steel and cast iron are gradually being replaced by lower density material and even lower costs. In complex shapes tools, heterogeneous material removal in roughing, sudden changes of sections, etc. Stress relieving treatment should be carried out to minimize dimensional variations of form during quenching and tempering. Materials for manufacture of thermal fixing most appropriate for that operating system still needs to be further investigated. Therefore, this study investigated the elastic behavior of the material used in the manufacture of tooling systems for cutting tools. Has been evaluated In fastening system, the temperature variation exerted on the mandrel body region and the thermal expansion where H13 steel can withstand the assembly process by thermal interference. This method can determine the amount of number of cycles until the onset of fatigue that material.
Investigations on The Effects of Different Heat Transfer Coefficients in The ...IJRESJOURNAL
ABSTRACT: In the metal machining, the cutting fluid has become a tough problem in term of the health of works and environmental protection. The heat transfer coefficients of the water-based fluid, mineral oil and plant oil are distinct. An investigation focused on the effects of different heat transfer coefficients (h) on the cutting thickness compression ratio, chip formation, stress distribution and specific cutting energy is presented and discussed. In this study, three heat transfer coefficients have been simulated by Third WaveAdvantedge in machining AISI 1045 steel during different cutting speeds.It has been shown that the Mises stress and temperature are both affected by the heat transfer coefficient. When the h reaches higher, the Mises stress increases and the temperature shows the opposite trend. Also, the results can be found that the chip compression ratio decreases and shear angle increases when hrises. The relationship between specific cutting energy and heat transfer coefficients can be found in this paper.
Experimental investigations of vegetable & mineral oil performance during mac...eSAT Publishing House
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
Experimental investigations of vegetable & mineral oil performance during...eSAT Journals
Abstract Machining with Conventional flood lubrication is a common practice in the industries for reducing friction, heat and cutting power. The type of cutting fluid used during machining play important role in enhancing the machining performance if and only if it is selected, applied, handled and disposed in better way. Cutting fluids often poses hazard to man, environment, machine and material. It sometimes also becomes uneconomical; when application method, flow rate and cost of cutting fluid are remain unattended or underestimated. In Conventional flood lubrication a large quantity of lubricant is applied continuously at the tool chip interface does not remove heat effectively as much required because of poor penetration and obstruction from the chip. Therefore this system is becoming uneconomical for machining and unsuitable for environment. On the other hand wastage disposal of this large quantity of cutting fluid (petroleum based) is becoming problematic. Therefore the present study has been conducted by Vegetable based Minimum quantity Lubrication to reduce or to minimize hazards caused by Conventional flood lubrication. The Results of surface roughness obtained during Turning of EN-31 Steel with Minimum quantity lubrication of both mineral oil and vegetable are compared with each other and indicates that the surface roughness of vegetable oil is close proximity with mineral oil.
INVESTIGATION AND OPTIMIZATION OF TURNING PROCESS PARAMETER IN WET AND MQL SY...IAEME Publication
The big challenge of the mass production firms is concentrated for achieving high quality products with good dimensionability with high productivity, less wear on the cutting insert, less use
of cutting fluid, within less time. This paper present dissertation work of an investigation of turning process parameters on hard EN 31 material, for optimization of surface roughness, material removal rate, machining time in wet and minimum quantity lubrication system. The experiment is carried out by considering four controllable input variables namely cutting speed, feed rate, depth of cut and insert nose radius in the presence of wet & MQL system
Review on investigation and optimization of turning process parameter in wet ...eSAT Publishing House
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
Performance evaluation of ti n coated carbide insert for optimum surface roug...eSAT Journals
Abstract In manufacturing industry, beside the dimensional and geometric tolerance of a component, surface quality is most commonly specified requirements. Surface roughness plays an important role in the performance of the component. This paper presents a study of the influence of the cutting parameters on the surface roughness during the turning of AISI1045 steel with TiN coated carbide tool. The design of experiments based on the Taguchi technique. The objective was to optimization of the machining parameters as cutting speed, feed rate and depth of cut for surface roughness. Main effect plots are generated and analyzed to find out the relationship between them. Afterwords a confirmation test were performed to make a comparison between the predicted results and the theoretical results. Keywords: TiN carbide insert, AISI 1045 alloy steel, Taguchi method, Surface roughness, ANOVA
COMPARISON OF MAIN EFFECT OF VEGETABLE OIL AND AL2O3 NANOFLUIDS USED WITH MQL...IAEME Publication
The growing demands for high productivity of machining need use of high cutting velocity and feed rate. Such machining inherently produces high cutting temperature, which not only reduces tool life but also impairs the product quality. Application of cutting fluids changes the performance of machining operations because of their lubrication, cooling, and chip flushing functions. But the conventional cutting fluids are not that effective in such high production machining, particularly in continuous cutting of materials likes steels. So Nanofluids have novel properties that make them potentially useful in heat transfer medium in cutting zone and Minimum quantity lubrication (MQL) presents itself as a viable alternative for turning with respect to tool wear, heat dissipation, and machined surface quality.
International Journal of Engineering Research and Development (IJERD)IJERD Editor
journal publishing, how to publish research paper, Call For research paper, international journal, publishing a paper, IJERD, journal of science and technology, how to get a research paper published, publishing a paper, publishing of journal, publishing of research paper, reserach and review articles, IJERD Journal, How to publish your research paper, publish research paper, open access engineering journal, Engineering journal, Mathemetics journal, Physics journal, Chemistry journal, Computer Engineering, Computer Science journal, how to submit your paper, peer reviw journal, indexed journal, reserach and review articles, engineering journal, www.ijerd.com, research journals,
yahoo journals, bing journals, International Journal of Engineering Research and Development, google journals, hard copy of journal
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
Use of cutting fluids in machining processes can reduce the cutting temperature and provides lubrication to tool and work piece. These translate to longer tool life and improved surface quality. Metalworking fluids are a major cause of health hazards for operators apart from being sources of environmental pollution thus necessitating research in dry and minimum quantity lubrication (MQL) machining. The introduction of coolant techniques such as near-dry machining so called minimum quantity lubrication (MQL) and cryogenic coolant have shown promising performances especially in terms of cutting tool life. Nowadays, MQL is widely used in machining performances.
Studies on jet penetration and kerf width at various operating pressure in ma...eSAT Journals
Abstract Abrasive Water Jet (AWJ) machining is one of the non-traditional machining method popular method for machining of hard, heat sensitive and brittle materials. The present work attempts to investigate the effect of operating pressure on depth of penetration and kerf characteristics generated while machining of D2 heat treated steel. It is found that increase in operating pressure increases the depth of penetration and decreases the surface taper on the work-piece. Keywords: Kerf width, Depth of cut, Operating pressure, AWJ Machining
The big challenge of the mass production firms is concentrated for achieving high quality
products with good dimensionability with high productivity, less wear on the cutting insert, less use
of cutting fluid, within less time. This paper present dissertation work of an investigation of turning
process parameters on hard EN 31 material, for optimization of surface roughness, material removal
rate, machining time in wet and minimum quantity lubrication system. The experiment is carried out
by considering four controllable input variables namely cutting speed, feed rate, depth of cut and
insert nose radius in the presence of wet & MQL system. This experiment also present the relation
between chip formations and controllable variables along with chip thickness, chip colors & chip
velocity from which its effect on insert wear, quality of product can be easily found out, because of
chip morphology gives indirectly the effect of it on the insert wear. In this dissertation work
minimum quantity lubrication system is used for reducing the cutting zone temperature properly and
very fastly. Finally comparison is carried out between wet and minimum quantity lubrication system
from which one can easily identify which system is better for higher productivity along with high
surface finish. This work also present the productivity (MRR) concept in production. The design of
experiment and optimization of surface roughness, material removal rate, machining time is carried
out by using response surface methodology (RSM). Central composite design method is used (CCD)
for the total experimental design work and its analysis and also for optimization of turning process
parameter by which wastage of the machining time, power can be avoided.
Abrasive water jet review and parameter selection by AHP method.IOSR Journals
An Abrasive Water Jet is one of the most recently developed non-traditional manufacturing
processes. Abrasive water jet offers the potential for the development in cutting which is less sensitive to
material properties, has virtually no thermal effects, and imposes minimal stresses. As it is a cold process has
also important applications where heat-affected zones are to be avoided. In this work, a deep study of this newer
non-conventional technique of machining i.e., abrasive water jet machining is done. In this paper more focus is
on selection of various process parameters like-angle of impact, Pressure inside the pumping system, abrasive
material type, Stand-off distance, focusing tube diameter, nozzle speed, abrasive mass flow rate and target
material properties for getting the required output like- depth of cut and cut quality. For cutting Stainless steel
(Grade 304), important task is to find out a few parameters which influence more. With the help of Analytical
Hierarchy Process technique the selection of a few parameters are done which are comparatively more
influencing. Weighteges are given to parameters on the basis of previous study and experience of owner of the
company who is dealing with abrasive water jet technology since many years.
OPTIMIZATION OF TURNING PROCESS PARAMETER IN DRY TURNING OF SAE52100 STEELIAEME Publication
This paper presents the optimization of surface roughness & material removal rate in dry turning of SAE52100 steel. Carbide inserts were used for machining of SAE 52100 to study effects of process parameters [Cutting speed (S), Feed (F) and depth of cut (d)]. These models can be effectively used to predict the surface roughness (Ra) & material removal rate of the workpiece. The big challenge of the Micro, small& medium industries in India for achieving high quality
products with increased productivity.
Analysis Of The Structure Of A Material Used In The Manufacture Of Thermal Ch...IJERA Editor
The dynamic stability of machine has its own importance in the quality of the machined product. With the development of new technologies for cutting tools, as the geometries and materials, cutting speeds used today reach values inconceivable for two decades. In the automotive industry steel and cast iron are gradually being replaced by lower density material and even lower costs. In complex shapes tools, heterogeneous material removal in roughing, sudden changes of sections, etc. Stress relieving treatment should be carried out to minimize dimensional variations of form during quenching and tempering. Materials for manufacture of thermal fixing most appropriate for that operating system still needs to be further investigated. Therefore, this study investigated the elastic behavior of the material used in the manufacture of tooling systems for cutting tools. Has been evaluated In fastening system, the temperature variation exerted on the mandrel body region and the thermal expansion where H13 steel can withstand the assembly process by thermal interference. This method can determine the amount of number of cycles until the onset of fatigue that material.
Investigations on The Effects of Different Heat Transfer Coefficients in The ...IJRESJOURNAL
ABSTRACT: In the metal machining, the cutting fluid has become a tough problem in term of the health of works and environmental protection. The heat transfer coefficients of the water-based fluid, mineral oil and plant oil are distinct. An investigation focused on the effects of different heat transfer coefficients (h) on the cutting thickness compression ratio, chip formation, stress distribution and specific cutting energy is presented and discussed. In this study, three heat transfer coefficients have been simulated by Third WaveAdvantedge in machining AISI 1045 steel during different cutting speeds.It has been shown that the Mises stress and temperature are both affected by the heat transfer coefficient. When the h reaches higher, the Mises stress increases and the temperature shows the opposite trend. Also, the results can be found that the chip compression ratio decreases and shear angle increases when hrises. The relationship between specific cutting energy and heat transfer coefficients can be found in this paper.
Experimental investigations of vegetable & mineral oil performance during mac...eSAT Publishing House
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
Experimental investigations of vegetable & mineral oil performance during...eSAT Journals
Abstract Machining with Conventional flood lubrication is a common practice in the industries for reducing friction, heat and cutting power. The type of cutting fluid used during machining play important role in enhancing the machining performance if and only if it is selected, applied, handled and disposed in better way. Cutting fluids often poses hazard to man, environment, machine and material. It sometimes also becomes uneconomical; when application method, flow rate and cost of cutting fluid are remain unattended or underestimated. In Conventional flood lubrication a large quantity of lubricant is applied continuously at the tool chip interface does not remove heat effectively as much required because of poor penetration and obstruction from the chip. Therefore this system is becoming uneconomical for machining and unsuitable for environment. On the other hand wastage disposal of this large quantity of cutting fluid (petroleum based) is becoming problematic. Therefore the present study has been conducted by Vegetable based Minimum quantity Lubrication to reduce or to minimize hazards caused by Conventional flood lubrication. The Results of surface roughness obtained during Turning of EN-31 Steel with Minimum quantity lubrication of both mineral oil and vegetable are compared with each other and indicates that the surface roughness of vegetable oil is close proximity with mineral oil.
INVESTIGATION AND OPTIMIZATION OF TURNING PROCESS PARAMETER IN WET AND MQL SY...IAEME Publication
The big challenge of the mass production firms is concentrated for achieving high quality products with good dimensionability with high productivity, less wear on the cutting insert, less use
of cutting fluid, within less time. This paper present dissertation work of an investigation of turning process parameters on hard EN 31 material, for optimization of surface roughness, material removal rate, machining time in wet and minimum quantity lubrication system. The experiment is carried out by considering four controllable input variables namely cutting speed, feed rate, depth of cut and insert nose radius in the presence of wet & MQL system
Review on investigation and optimization of turning process parameter in wet ...eSAT Publishing House
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
IJERA (International journal of Engineering Research and Applications) is International online, ... peer reviewed journal. For more detail or submit your article, please visit www.ijera.com
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
Review of the cryogenic machining in turning and milling processeSAT Journals
Abstract Cryogenic Coolents are used in conventional machining in material removing process can increase tool life, better surface finish, dimensional accuracy, and reduce the cutting temp. Main objectives of this paper is to understand the cryogenic machining operations. Various research scholar has done the experimental investigation on the cryogenic coolants in different materials in turning and milling Process,. At the end of the review obsrved that cryogenic coolant is most favourable methods for material cutting operations in various aspects for future research is proposed. Key Words: Cryogenic coolents and Machining, Literature Review, cryogenic LN2Setup, cryogenic CO2 Setup,
Studies on material removal rate of al6061 while turning with coolant and wit...eSAT Journals
Abstract: Material Removal Rate (MRR) is one of the key attribute of machining process which influences productivity. In this work the effect of various turning process parameters on MRR produced on Al6061 (as cast condition) is investigated. Also, the effect of using coolant on MRR while turning is also determined. MRR is found to increase almost linearly with increase in feed rate. Increase in depth of cut and cutting speed is found to increase the MRR by 70.66 % and 16.36 % respectively. Keywords: Al6061, Material Removal Rate, Turning Process, Spindle Speed, Depth of Cut, ANOVA, Taguchi Method
Performance evaluation of nano graphite inclusions in cutting fluids with mql...eSAT Journals
Abstract Liberation of heat and generation of friction associated with any machining operation ever pose a problem which not only reduce the tool life but also impair quality of the product. Cutting fluids have been the conventional choice to curtail friction and temperatures in machining because of its lubrication and cooling actions. However, considering health hazards posed by the conventional cutting fluids to health of the workers and ecology, the quest is towards identifying alternative strategies to the usual flood application. Selection and use of proper lubricant that can improve the overall cutting phenomena which is an important aspect in reducing the cutting forces and temperatures The present work studies the use of nano cutting fluids in MQL which is a minimal cutting fluid technique, for turning operation using HSS and cemented carbide tools. Development of nano materials by nanotechnology technique, dispersing them in the cutting fluid improve the effectiveness of the cutting fluid and hence nano graphite powder is selected of particle size 80 nm in varying proportions i.e. 0.0%, 0.1%, 0.3% and 0.5% by weight are mixed in water soluble oil and applied drop by drop. Experimentation is carried out at different flow rates like 5 ml/min 10 ml/min and 15 ml/min with nanoparticle suspended fluids along with dry machining, flood coolant machining under constant cutting conditions. Experimental results are very encouraging with much reduction in surface roughness, tool flank wear, temperatures and cutting forces is observed in fluids with nanoparticle inclusions. Different properties of the nanofluids are estimated through a series of standard tests. Keywords: Machining, nano Graphite, minimum quantity lubrication, cutting fluids.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
Analysis of process parameters in dry machining of en 31 steel by grey relati...IAEME Publication
This paper presents the optimization of surface roughness & material removal rate in dry turning of EN-31 steel.Carbide inserts were used for machining of EN-31 to study effects of process parameters [Cutting speed (S), Feed (F) and depth of cut (d)]. These models can be effectively used to predict the surface roughness (Ra) of the workpiece. The big challenge of the Micro, small& medium industries in India for achieving high quality products with increased productivity.Paper presentswork of an investigation of turning process parameters on EN-31 material, for optimization of surface roughness, material removal rate.The experiment is carried out by considering three controllable input variables namely cutting speed, feed rate, and depth of cut.The design of experiment and optimization of surface roughness is carried out by using Taguchi L9 orthogonal array & Grey Relational analysis.
ANALYSIS OF PROCESS PARAMETERS IN DRY MACHINING OF EN-31 STEEL by GREY RELATI...IAEME Publication
This paper presents the optimization of surface roughness & material removal rate in dry turning of EN-31 steel.Carbide inserts were used for machining of EN-31 to study effects of process parameters [Cutting speed (S), Feed (F) and depth o f cut (d)]. These models can be effectively used to predict the surface roughness (Ra) of the workpiece. The big challenge of the Micro, small& medium industries in India for achieving high quality products with increased productivity.Paper presents work of an investigation of turning process parameters on EN-31 material, for optimization of surface roughness, material removal rate.The experiment is carried out by considering three controllable input variables namely cutting speed, feed rate, and depth of cut.The design of experiment and optimization of surface roughness is carried out by using Taguchi L9 orthogonal array & Grey Relational analysis.
Similar to Impact of varying the nozzle stand off distance on cutting temperature in turning of en-31 steel with minimum quantity lubrication (20)
Mechanical properties of hybrid fiber reinforced concrete for pavementseSAT Journals
Abstract
The effect of addition of mono fibers and hybrid fibers on the mechanical properties of concrete mixture is studied in the present
investigation. Steel fibers of 1% and polypropylene fibers 0.036% were added individually to the concrete mixture as mono fibers and
then they were added together to form a hybrid fiber reinforced concrete. Mechanical properties such as compressive, split tensile and
flexural strength were determined. The results show that hybrid fibers improve the compressive strength marginally as compared to
mono fibers. Whereas, hybridization improves split tensile strength and flexural strength noticeably.
Keywords:-Hybridization, mono fibers, steel fiber, polypropylene fiber, Improvement in mechanical properties.
Material management in construction – a case studyeSAT Journals
Abstract
The objective of the present study is to understand about all the problems occurring in the company because of improper application
of material management. In construction project operation, often there is a project cost variance in terms of the material, equipments,
manpower, subcontractor, overhead cost, and general condition. Material is the main component in construction projects. Therefore,
if the material management is not properly managed it will create a project cost variance. Project cost can be controlled by taking
corrective actions towards the cost variance. Therefore a methodology is used to diagnose and evaluate the procurement process
involved in material management and launch a continuous improvement was developed and applied. A thorough study was carried
out along with study of cases, surveys and interviews to professionals involved in this area. As a result, a methodology for diagnosis
and improvement was proposed and tested in selected projects. The results obtained show that the main problem of procurement is
related to schedule delays and lack of specified quality for the project. To prevent this situation it is often necessary to dedicate
important resources like money, personnel, time, etc. To monitor and control the process. A great potential for improvement was
detected if state of the art technologies such as, electronic mail, electronic data interchange (EDI), and analysis were applied to the
procurement process. These helped to eliminate the root causes for many types of problems that were detected.
Managing drought short term strategies in semi arid regions a case studyeSAT Journals
Abstract
Drought management needs multidisciplinary action. Interdisciplinary efforts among the experts in various fields of the droughts
prone areas are helpful to achieve tangible and permanent solution for this recurring problem. The Gulbarga district having the total
area around 16, 240 sq.km, and accounts 8.45 per cent of the Karnataka state area. The district has been situated with latitude 17º 19'
60" North and longitude of 76 º 49' 60" east. The district is situated entirely on the Deccan plateau positioned at a height of 300 to
750 m above MSL. Sub-tropical, semi-arid type is one among the drought prone districts of Karnataka State. The drought
management is very important for a district like Gulbarga. In this paper various short term strategies are discussed to mitigate the
drought condition in the district.
Keywords: Drought, South-West monsoon, Semi-Arid, Rainfall, Strategies etc.
Life cycle cost analysis of overlay for an urban road in bangaloreeSAT Journals
Abstract
Pavements are subjected to severe condition of stresses and weathering effects from the day they are constructed and opened to traffic
mainly due to its fatigue behavior and environmental effects. Therefore, pavement rehabilitation is one of the most important
components of entire road systems. This paper highlights the design of concrete pavement with added mono fibers like polypropylene,
steel and hybrid fibres for a widened portion of existing concrete pavement and various overlay alternatives for an existing
bituminous pavement in an urban road in Bangalore. Along with this, Life cycle cost analyses at these sections are done by Net
Present Value (NPV) method to identify the most feasible option. The results show that though the initial cost of construction of
concrete overlay is high, over a period of time it prove to be better than the bituminous overlay considering the whole life cycle cost.
The economic analysis also indicates that, out of the three fibre options, hybrid reinforced concrete would be economical without
compromising the performance of the pavement.
Keywords: - Fatigue, Life cycle cost analysis, Net Present Value method, Overlay, Rehabilitation
Laboratory studies of dense bituminous mixes ii with reclaimed asphalt materialseSAT Journals
Abstract
The issue of growing demand on our nation’s roadways over that past couple of decades, decreasing budgetary funds, and the need to
provide a safe, efficient, and cost effective roadway system has led to a dramatic increase in the need to rehabilitate our existing
pavements and the issue of building sustainable road infrastructure in India. With these emergency of the mentioned needs and this
are today’s burning issue and has become the purpose of the study.
In the present study, the samples of existing bituminous layer materials were collected from NH-48(Devahalli to Hassan) site.The
mixtures were designed by Marshall Method as per Asphalt institute (MS-II) at 20% and 30% Reclaimed Asphalt Pavement (RAP).
RAP material was blended with virgin aggregate such that all specimens tested for the, Dense Bituminous Macadam-II (DBM-II)
gradation as per Ministry of Roads, Transport, and Highways (MoRT&H) and cost analysis were carried out to know the economics.
Laboratory results and analysis showed the use of recycled materials showed significant variability in Marshall Stability, and the
variability increased with the increase in RAP content. The saving can be realized from utilization of recycled materials as per the
methodology, the reduction in the total cost is 19%, 30%, comparing with the virgin mixes.
Keywords: Reclaimed Asphalt Pavement, Marshall Stability, MS-II, Dense Bituminous Macadam-II
Laboratory investigation of expansive soil stabilized with natural inorganic ...eSAT Journals
Abstract
Soil stabilization has proven to be one of the oldest techniques to improve the soil properties. Literature review conducted revealed
that uses of natural inorganic stabilizers are found to be one of the best options for soil stabilization. In this regard an attempt has
been made to evaluate the influence of RBI-81 stabilizer on properties of black cotton soil through laboratory investigations. Black
cotton soil with varying percentages of RBI-81 viz., 0, 0.5, 1, 1.5, 2, and 2.5 percent were studied for moisture density relationships
and strength behaviour of soils. Also the effect of curing period was evaluated as literature review clearly emphasized the strength
gain of soils stabilized with RBI-81 over a period of time. The results obtained shows that the unconfined compressive strength of
specimens treated with RBI-81 increased approximately by 250% for a curing period of 28 days as compared to virgin soil. Further
the CBR value improved approximately by 400%. The studies indicated an increasing trend for soil strength behaviour with
increasing percentage of RBI-81 suggesting its potential applications in soil stabilization.
Influence of reinforcement on the behavior of hollow concrete block masonry p...eSAT Journals
Abstract
Reinforced masonry was developed to exploit the strength potential of masonry and to solve its lack of tensile strength. Experimental
and analytical studies have been carried out to investigate the effect of reinforcement on the behavior of hollow concrete block
masonry prisms under compression and to predict ultimate failure compressive strength. In the numerical program, three dimensional
non-linear finite elements (FE) model based on the micro-modeling approach is developed for both unreinforced and reinforced
masonry prisms using ANSYS (14.5). The proposed FE model uses multi-linear stress-strain relationships to model the non-linear
behavior of hollow concrete block, mortar, and grout. Willam-Warnke’s five parameter failure theory has been adopted to model the
failure of masonry materials. The comparison of the numerical and experimental results indicates that the FE models can successfully
capture the highly nonlinear behavior of the physical specimens and accurately predict their strength and failure mechanisms.
Keywords: Structural masonry, Hollow concrete block prism, grout, Compression failure, Finite element method,
Numerical modeling.
Influence of compaction energy on soil stabilized with chemical stabilizereSAT Journals
Abstract
Increase in traffic along with heavier magnitude of wheel loads cause rapid deterioration in pavements. There is a need to improve
density, strength of soil subgrade and other pavement layers. In this study an attempt is made to improve the properties of locally
available loamy soil using twin approaches viz., i) increasing the compaction of soil and ii) treating the soil with chemical stabilizer.
Laboratory studies are carried out on both untreated and treated soil samples compacted by different compaction efforts. Studies
show that increase in compaction effort results in increase in density of soil. However in soil treated with chemical stabilizer, rate of
increase in density is not significant. The soil treated with chemical stabilizer exhibits improvement in both strength and performance
properties.
Keywords: compaction, density, subgradestabilization, resilient modulus
Geographical information system (gis) for water resources managementeSAT Journals
Abstract
Water resources projects are inherited with overlapping and at times conflicting objectives. These projects are often of varied sizes
ranging from major projects with command areas of millions of hectares to very small projects implemented at the local level. Thus,
in all these projects there is seldom proper coordination which is essential for ensuring collective sustainability.
Integrated watershed development and management is the accepted answer but in turn requires a comprehensive framework that can
enable planning process involving all the stakeholders at different levels and scales is compulsory. Such a unified hydrological
framework is essential to evaluate the cause and effect of all the proposed actions within the drainage basins.
The present paper describes a hydrological framework developed in the form of a Hydrologic Information System (HIS) which is
intended to meet the specific information needs of the various line departments of a typical State connected with water related aspects.
The HIS consist of a hydrologic information database coupled with tools for collating primary and secondary data and tools for
analyzing and visualizing the data and information. The HIS also incorporates hydrological model base for indirect assessment of
various entities of water balance in space and time. The framework would be maintained and updated to reflect fully the most
accurate ground truth data and the infrastructure requirements for planning and management.
Keywords: Hydrological Information System (HIS); WebGIS; Data Model; Web Mapping Services
Forest type mapping of bidar forest division, karnataka using geoinformatics ...eSAT Journals
Abstract
The study demonstrate the potentiality of satellite remote sensing technique for the generation of baseline information on forest types
including tree plantation details in Bidar forest division, Karnataka covering an area of 5814.60Sq.Kms. The Total Area of Bidar
forest division is 5814Sq.Kms analysis of the satellite data in the study area reveals that about 84% of the total area is Covered by
crop land, 1.778% of the area is covered by dry deciduous forest, 1.38 % of mixed plantation, which is very threatening to the
environmental stability of the forest, future plantation site has been mapped. With the use of latest Geo-informatics technology proper
and exact condition of the trees can be observed and necessary precautions can be taken for future plantation works in an appropriate
manner
Keywords:-RS, GIS, GPS, Forest Type, Tree Plantation
Factors influencing compressive strength of geopolymer concreteeSAT Journals
Abstract
To study effects of several factors on the properties of fly ash based geopolymer concrete on the compressive strength and also the
cost comparison with the normal concrete. The test variables were molarities of sodium hydroxide(NaOH) 8M,14M and 16M, ratio of
NaOH to sodium silicate (Na2SiO3) 1, 1.5, 2 and 2.5, alkaline liquid to fly ash ratio 0.35 and 0.40 and replacement of water in
Na2SiO3 solution by 10%, 20% and 30% were used in the present study. The test results indicated that the highest compressive
strength 54 MPa was observed for 16M of NaOH, ratio of NaOH to Na2SiO3 2.5 and alkaline liquid to fly ash ratio of 0.35. Lowest
compressive strength of 27 MPa was observed for 8M of NaOH, ratio of NaOH to Na2SiO3 is 1 and alkaline liquid to fly ash ratio of
0.40. Alkaline liquid to fly ash ratio of 0.35, water replacement of 10% and 30% for 8 and 16 molarity of NaOH and has resulted in
compressive strength of 36 MPa and 20 MPa respectively. Superplasticiser dosage of 2 % by weight of fly ash has given higher
strength in all cases.
Keywords: compressive strength, alkaline liquid, fly ash
Experimental investigation on circular hollow steel columns in filled with li...eSAT Journals
Abstract
Composite Circular hollow Steel tubes with and without GFRP infill for three different grades of Light weight concrete are tested for
ultimate load capacity and axial shortening , under Cyclic loading. Steel tubes are compared for different lengths, cross sections and
thickness. Specimens were tested separately after adopting Taguchi’s L9 (Latin Squares) Orthogonal array in order to save the initial
experimental cost on number of specimens and experimental duration. Analysis was carried out using ANN (Artificial Neural
Network) technique with the assistance of Mini Tab- a statistical soft tool. Comparison for predicted, experimental & ANN output is
obtained from linear regression plots. From this research study, it can be concluded that *Cross sectional area of steel tube has most
significant effect on ultimate load carrying capacity, *as length of steel tube increased- load carrying capacity decreased & *ANN
modeling predicted acceptable results. Thus ANN tool can be utilized for predicting ultimate load carrying capacity for composite
columns.
Keywords: Light weight concrete, GFRP, Artificial Neural Network, Linear Regression, Back propagation, orthogonal
Array, Latin Squares
Experimental behavior of circular hsscfrc filled steel tubular columns under ...eSAT Journals
Abstract
This paper presents an outlook on experimental behavior and a comparison with predicted formula on the behaviour of circular
concentrically loaded self-consolidating fibre reinforced concrete filled steel tube columns (HSSCFRC). Forty-five specimens were
tested. The main parameters varied in the tests are: (1) percentage of fiber (2) tube diameter or width to wall thickness ratio (D/t
from 15 to 25) (3) L/d ratio from 2.97 to 7.04 the results from these predictions were compared with the experimental data. The
experimental results) were also validated in this study.
Keywords: Self-compacting concrete; Concrete-filled steel tube; axial load behavior; Ultimate capacity.
Evaluation of punching shear in flat slabseSAT Journals
Abstract
Flat-slab construction has been widely used in construction today because of many advantages that it offers. The basic philosophy in
the design of flat slab is to consider only gravity forces; this method ignores the effect of punching shear due to unbalanced moments
at the slab column junction which is critical. An attempt has been made to generate generalized design sheets which accounts both
punching shear due to gravity loads and unbalanced moments for cases (a) interior column; (b) edge column (bending perpendicular
to shorter edge); (c) edge column (bending parallel to shorter edge); (d) corner column. These design sheets are prepared as per
codal provisions of IS 456-2000. These design sheets will be helpful in calculating the shear reinforcement to be provided at the
critical section which is ignored in many design offices. Apart from its usefulness in evaluating punching shear and the necessary
shear reinforcement, the design sheets developed will enable the designer to fix the depth of flat slab during the initial phase of the
design.
Keywords: Flat slabs, punching shear, unbalanced moment.
Evaluation of performance of intake tower dam for recent earthquake in indiaeSAT Journals
Abstract
Intake towers are typically tall, hollow, reinforced concrete structures and form entrance to reservoir outlet works. A parametric
study on dynamic behavior of circular cylindrical towers can be carried out to study the effect of depth of submergence, wall thickness
and slenderness ratio, and also effect on tower considering dynamic analysis for time history function of different soil condition and
by Goyal and Chopra accounting interaction effects of added hydrodynamic mass of surrounding and inside water in intake tower of
dam
Key words: Hydrodynamic mass, Depth of submergence, Reservoir, Time history analysis,
Evaluation of operational efficiency of urban road network using travel time ...eSAT Journals
Abstract
Efficiency of the road network system is analyzed by travel time reliability measures. The study overlooks on an important measure of
travel time reliability and prioritizing Tiruchirappalli road network. Traffic volume and travel time were collected using license plate
matching method. Travel time measures were estimated from average travel time and 95th travel time. Effect of non-motorized vehicle
on efficiency of road system was evaluated. Relation between buffer time index and traffic volume was created. Travel time model has
been developed and travel time measure was validated. Then service quality of road sections in network were graded based on
travel time reliability measures.
Keywords: Buffer Time Index (BTI); Average Travel Time (ATT); Travel Time Reliability (TTR); Buffer Time (BT).
Estimation of surface runoff in nallur amanikere watershed using scs cn methodeSAT Journals
Abstract
The development of watershed aims at productive utilization of all the available natural resources in the entire area extending from
ridge line to stream outlet. The per capita availability of land for cultivation has been decreasing over the years. Therefore, water and
the related land resources must be developed, utilized and managed in an integrated and comprehensive manner. Remote sensing and
GIS techniques are being increasingly used for planning, management and development of natural resources. The study area, Nallur
Amanikere watershed geographically lies between 110 38’ and 110 52’ N latitude and 760 30’ and 760 50’ E longitude with an area of
415.68 Sq. km. The thematic layers such as land use/land cover and soil maps were derived from remotely sensed data and overlayed
through ArcGIS software to assign the curve number on polygon wise. The daily rainfall data of six rain gauge stations in and around
the watershed (2001-2011) was used to estimate the daily runoff from the watershed using Soil Conservation Service - Curve Number
(SCS-CN) method. The runoff estimated from the SCS-CN model was then used to know the variation of runoff potential with different
land use/land cover and with different soil conditions.
Keywords: Watershed, Nallur watershed, Surface runoff, Rainfall-Runoff, SCS-CN, Remote Sensing, GIS.
Estimation of morphometric parameters and runoff using rs & gis techniqueseSAT Journals
Abstract
Land and water are the two vital natural resources, the optimal management of these resources with minimum adverse environmental
impact are essential not only for sustainable development but also for human survival. Satellite remote sensing with geographic
information system has a pragmatic approach to map and generate spatial input layers of predicting response behavior and yield of
watershed. Hence, in the present study an attempt has been made to understand the hydrological process of the catchment at the
watershed level by drawing the inferences from moprhometric analysis and runoff. The study area chosen for the present study is
Yagachi catchment situated in Chickamaglur and Hassan district lies geographically at a longitude 75⁰52’08.77”E and
13⁰10’50.77”N latitude. It covers an area of 559.493 Sq.km. Morphometric analysis is carried out to estimate morphometric
parameters at Micro-watershed to understand the hydrological response of the catchment at the Micro-watershed level. Daily runoff
is estimated using USDA SCS curve number model for a period of 10 years from 2001 to 2010. The rainfall runoff relationship of the
study shows there is a positive correlation.
Keywords: morphometric analysis, runoff, remote sensing and GIS, SCS - method
-
Effect of variation of plastic hinge length on the results of non linear anal...eSAT Journals
Abstract The nonlinear Static procedure also well known as pushover analysis is method where in monotonically increasing loads are applied to the structure till the structure is unable to resist any further load. It is a popular tool for seismic performance evaluation of existing and new structures. In literature lot of research has been carried out on conventional pushover analysis and after knowing deficiency efforts have been made to improve it. But actual test results to verify the analytically obtained pushover results are rarely available. It has been found that some amount of variation is always expected to exist in seismic demand prediction of pushover analysis. Initial study is carried out by considering user defined hinge properties and default hinge length. Attempt is being made to assess the variation of pushover analysis results by considering user defined hinge properties and various hinge length formulations available in literature and results compared with experimentally obtained results based on test carried out on a G+2 storied RCC framed structure. For the present study two geometric models viz bare frame and rigid frame model is considered and it is found that the results of pushover analysis are very sensitive to geometric model and hinge length adopted. Keywords: Pushover analysis, Base shear, Displacement, hinge length, moment curvature analysis
Effect of use of recycled materials on indirect tensile strength of asphalt c...eSAT Journals
Abstract
Depletion of natural resources and aggregate quarries for the road construction is a serious problem to procure materials. Hence
recycling or reuse of material is beneficial. On emphasizing development in sustainable construction in the present era, recycling of
asphalt pavements is one of the effective and proven rehabilitation processes. For the laboratory investigations reclaimed asphalt
pavement (RAP) from NH-4 and crumb rubber modified binder (CRMB-55) was used. Foundry waste was used as a replacement to
conventional filler. Laboratory tests were conducted on asphalt concrete mixes with 30, 40, 50, and 60 percent replacement with RAP.
These test results were compared with conventional mixes and asphalt concrete mixes with complete binder extracted RAP
aggregates. Mix design was carried out by Marshall Method. The Marshall Tests indicated highest stability values for asphalt
concrete (AC) mixes with 60% RAP. The optimum binder content (OBC) decreased with increased in RAP in AC mixes. The Indirect
Tensile Strength (ITS) for AC mixes with RAP also was found to be higher when compared to conventional AC mixes at 300C.
Keywords: Reclaimed asphalt pavement, Foundry waste, Recycling, Marshall Stability, Indirect tensile strength.
Saudi Arabia stands as a titan in the global energy landscape, renowned for its abundant oil and gas resources. It's the largest exporter of petroleum and holds some of the world's most significant reserves. Let's delve into the top 10 oil and gas projects shaping Saudi Arabia's energy future in 2024.
Cosmetic shop management system project report.pdfKamal Acharya
Buying new cosmetic products is difficult. It can even be scary for those who have sensitive skin and are prone to skin trouble. The information needed to alleviate this problem is on the back of each product, but it's thought to interpret those ingredient lists unless you have a background in chemistry.
Instead of buying and hoping for the best, we can use data science to help us predict which products may be good fits for us. It includes various function programs to do the above mentioned tasks.
Data file handling has been effectively used in the program.
The automated cosmetic shop management system should deal with the automation of general workflow and administration process of the shop. The main processes of the system focus on customer's request where the system is able to search the most appropriate products and deliver it to the customers. It should help the employees to quickly identify the list of cosmetic product that have reached the minimum quantity and also keep a track of expired date for each cosmetic product. It should help the employees to find the rack number in which the product is placed.It is also Faster and more efficient way.
Immunizing Image Classifiers Against Localized Adversary Attacksgerogepatton
This paper addresses the vulnerability of deep learning models, particularly convolutional neural networks
(CNN)s, to adversarial attacks and presents a proactive training technique designed to counter them. We
introduce a novel volumization algorithm, which transforms 2D images into 3D volumetric representations.
When combined with 3D convolution and deep curriculum learning optimization (CLO), itsignificantly improves
the immunity of models against localized universal attacks by up to 40%. We evaluate our proposed approach
using contemporary CNN architectures and the modified Canadian Institute for Advanced Research (CIFAR-10
and CIFAR-100) and ImageNet Large Scale Visual Recognition Challenge (ILSVRC12) datasets, showcasing
accuracy improvements over previous techniques. The results indicate that the combination of the volumetric
input and curriculum learning holds significant promise for mitigating adversarial attacks without necessitating
adversary training.
Final project report on grocery store management system..pdfKamal Acharya
In today’s fast-changing business environment, it’s extremely important to be able to respond to client needs in the most effective and timely manner. If your customers wish to see your business online and have instant access to your products or services.
Online Grocery Store is an e-commerce website, which retails various grocery products. This project allows viewing various products available enables registered users to purchase desired products instantly using Paytm, UPI payment processor (Instant Pay) and also can place order by using Cash on Delivery (Pay Later) option. This project provides an easy access to Administrators and Managers to view orders placed using Pay Later and Instant Pay options.
In order to develop an e-commerce website, a number of Technologies must be studied and understood. These include multi-tiered architecture, server and client-side scripting techniques, implementation technologies, programming language (such as PHP, HTML, CSS, JavaScript) and MySQL relational databases. This is a project with the objective to develop a basic website where a consumer is provided with a shopping cart website and also to know about the technologies used to develop such a website.
This document will discuss each of the underlying technologies to create and implement an e- commerce website.
Industrial Training at Shahjalal Fertilizer Company Limited (SFCL)MdTanvirMahtab2
This presentation is about the working procedure of Shahjalal Fertilizer Company Limited (SFCL). A Govt. owned Company of Bangladesh Chemical Industries Corporation under Ministry of Industries.
Hierarchical Digital Twin of a Naval Power SystemKerry Sado
A hierarchical digital twin of a Naval DC power system has been developed and experimentally verified. Similar to other state-of-the-art digital twins, this technology creates a digital replica of the physical system executed in real-time or faster, which can modify hardware controls. However, its advantage stems from distributing computational efforts by utilizing a hierarchical structure composed of lower-level digital twin blocks and a higher-level system digital twin. Each digital twin block is associated with a physical subsystem of the hardware and communicates with a singular system digital twin, which creates a system-level response. By extracting information from each level of the hierarchy, power system controls of the hardware were reconfigured autonomously. This hierarchical digital twin development offers several advantages over other digital twins, particularly in the field of naval power systems. The hierarchical structure allows for greater computational efficiency and scalability while the ability to autonomously reconfigure hardware controls offers increased flexibility and responsiveness. The hierarchical decomposition and models utilized were well aligned with the physical twin, as indicated by the maximum deviations between the developed digital twin hierarchy and the hardware.
NO1 Uk best vashikaran specialist in delhi vashikaran baba near me online vas...Amil Baba Dawood bangali
Contact with Dawood Bhai Just call on +92322-6382012 and we'll help you. We'll solve all your problems within 12 to 24 hours and with 101% guarantee and with astrology systematic. If you want to take any personal or professional advice then also you can call us on +92322-6382012 , ONLINE LOVE PROBLEM & Other all types of Daily Life Problem's.Then CALL or WHATSAPP us on +92322-6382012 and Get all these problems solutions here by Amil Baba DAWOOD BANGALI
#vashikaranspecialist #astrologer #palmistry #amliyaat #taweez #manpasandshadi #horoscope #spiritual #lovelife #lovespell #marriagespell#aamilbabainpakistan #amilbabainkarachi #powerfullblackmagicspell #kalajadumantarspecialist #realamilbaba #AmilbabainPakistan #astrologerincanada #astrologerindubai #lovespellsmaster #kalajaduspecialist #lovespellsthatwork #aamilbabainlahore#blackmagicformarriage #aamilbaba #kalajadu #kalailam #taweez #wazifaexpert #jadumantar #vashikaranspecialist #astrologer #palmistry #amliyaat #taweez #manpasandshadi #horoscope #spiritual #lovelife #lovespell #marriagespell#aamilbabainpakistan #amilbabainkarachi #powerfullblackmagicspell #kalajadumantarspecialist #realamilbaba #AmilbabainPakistan #astrologerincanada #astrologerindubai #lovespellsmaster #kalajaduspecialist #lovespellsthatwork #aamilbabainlahore #blackmagicforlove #blackmagicformarriage #aamilbaba #kalajadu #kalailam #taweez #wazifaexpert #jadumantar #vashikaranspecialist #astrologer #palmistry #amliyaat #taweez #manpasandshadi #horoscope #spiritual #lovelife #lovespell #marriagespell#aamilbabainpakistan #amilbabainkarachi #powerfullblackmagicspell #kalajadumantarspecialist #realamilbaba #AmilbabainPakistan #astrologerincanada #astrologerindubai #lovespellsmaster #kalajaduspecialist #lovespellsthatwork #aamilbabainlahore #Amilbabainuk #amilbabainspain #amilbabaindubai #Amilbabainnorway #amilbabainkrachi #amilbabainlahore #amilbabaingujranwalan #amilbabainislamabad
Impact of varying the nozzle stand off distance on cutting temperature in turning of en-31 steel with minimum quantity lubrication
1. IJRET: International Journal of Research in Engineering and Technology ISSN: 2319-1163
__________________________________________________________________________________________
Volume: 02 Issue: 06 | Jun-2013, Available @ http://www.ijret.org 931
IMPACT OF VARYING THE NOZZLE STAND - OFF DISTANCE ON
CUTTING TEMPERATURE IN TURNING OF EN-31 STEEL WITH
MINIMUM QUANTITY LUBRICATION
Ajay Kumar1
, Gurpreet Singh2
, Simranpreet Singh Gill3
1
, 2
Lecturer, 3
Assistant Professor, Department of Mechanical Engineering,
1,2
Rayat Polytechnic College, Rail Majra, S.B.S Nagar, Punjab, India, 3
Beant College of Engineering and Technology,
Gurdaspur-143521, India, eraj_sharma@rediffmail.com, gssingh410@gmail.com, ritchie_223@yahoo.com
Abstract
Tool wear is a natural phenomenon in all metal cutting operations due to high friction at tool work interface, which affect the tool life,
product quality and accuracy of work. For minimizing the friction at tool work interface the cutting fluids or lubricants are used for
cooling and lubrication, hence improvement in machining efficiency. But if the quantity and quality of lubricants are unattended or
underestimated then it creates problems like soil, water, environmental pollution and also makes the machining process
uneconomical. The different cooling and lubrication techniques have been developed today. So it is necessity of present day scenario
of machining to work with technology which would not degrade the environment, face the competition and have better quality of
products. Different research shows that conventional Flood lubrication is limited by health hazards, misting and sometime
uneconomical as compared to other techniques, due to its high discharge rate of fluid. These problems have been overcome by using
dry machining. Studies shows that dry machining also becomes non efficient and uneconomical during cutting of harder materials at
higher cutting speed, feed and depth of cut, although it is environmental friendly and economical at particular machining level. So to
minimize all these Problems of health hazards, non-economy, intense tool wear in case of flood cooling and dry machining, the
minimum quantity lubrication (MQL) has been applied in this present research. The effect of varying the nozzle stand-off distance and
lubricant pressure have been considered in this study, to find out the best results in terms of cutting temperature. The experimentation
has been conducted during turning of EN- 31 Alloy Steel with minimum quantity lubrication at flow rate of 150 ml/hr having vegetable
based oil. The temperature has been measured by K- type thermocouple .The vegetable oil has been selected due to its environmental
friendly behavior and does not produce health hazards, like mineral oil during flood lubrication.
Index Terms: Tool wear, Flood lubrication, Dry machining, Minimum quantity lubrication, Nozzle stand-off distance
-----------------------------------------------------------------------***-----------------------------------------------------------------------
1. INTRODUCTION
High production machining of harder material generates high
cutting zone temperature, intense tool wear, high cutting
forces and sometimes poor quality of machining. Such effects
cannot be eliminated completely, due to higher friction at tool
work interface but can be minimized by cooling and
lubricating the tool. For this various methods of cooling and
lubricating the tool have been developed. The application of
different cooling and lubrication methods depends upon the
type of machining operation, work material and cutting
parameters. Different cutting operation requires different
cutting fluids due to their different tool work interaction. The
flood lubrication has been applied since the need of lubrication
had been aroused. The use of cutting fluid reduces the cutting
temperature, tool wear and surface roughness, if applied in
optimum amount and in best way. The role of quantity and
quality of lubricant play important role in reducing
environmental pollution and enhancing the machining
performance. But today’s flood lubrication technique has
become problematic, because of strict rules regarding the
prevention of environmental pollution. In this technique high
flow rate of cutting fluids leads to environmental degradation
like soil pollution, water pollution, health hazards and most
important wastage disposal of cutting fluids. Recycling cost in
case of flood lubrication also require addition set up which
adds in cooling cost of flood lubrication. Several developing
countries have banned the use of flood lubrication and dry
machining is major concern due environmental friendly
behaviour. Several studies show that dry machining has also
been limited up to particular machining parameters levels and
materials because during dry cutting of harder material at
higher cutting speed leads to higher cutting temperature which
effect the tool life as well as product quality. Now the question
arises, which system should be selected? Either flood
lubrication or dry machining because both have their own
advantages and disadvantages.
Today’s machining scenario is facing competitiveness,
environment strict rules and demands higher production
2. IJRET: International Journal of Research in Engineering and Technology ISSN: 2319-1163
__________________________________________________________________________________________
Volume: 02 Issue: 06 | Jun-2013, Available @ http://www.ijret.org 932
volume, better product quality and economical machining. So
there is challenging Task for the researcher to manufacture the
product with a process, which would not effects the
environment and also not limited bad quality of machining at
higher cutting speed. Because machining without using cutting
fluid leads to several drawbacks likes dimensional inaccuracy,
thermal damage of tool, more cutting power and lower tool
life. Which make this system objectionable, although it is
environmental friendly. The possible solutions for this may be
the use of less quantity of lubricants i.e. Minimum quantity
lubrication or Near Dry machining. In this technique the low
quantity of cutting fluid assisted by pressurized air is used for
cooling and lubrication purpose. The flow rate of cutting fluid
is typically about 50-500 ml/hr or sometimes less. Several
studies have been conducted by different researchers, using
minimum quantity lubrication for different machining
operation for reducing the health hazards, cost of lubricant,
wastage disposal, cooling cost and environmental pollution.
But less focus have been attention on the effect of varying the
nozzle distance from the cutting zone and lubricant pressure
during machining. So there was a need of study which would
consider this parameter for finding the best nozzle distance
from cutting zone in terms of cutting temperature and surface
roughness during turning operation using minimum quantity
lubrication. Because by varying the nozzle distance and
lubricant pressure, the drop distribution to cutting zone
changes, which effect the cutting temperature, tool wear,
surface roughness and cutting forces, hence variation in
machining performance results.
Dhar, N.R et al [3] has experimentally investigated the effect
of Minimum Quantity of Lubrication (MQL) by vegetable oil-
based cutting fluid on machinability of steel, the result
obtained from this study using uncoated carbide tool i.e. MQL
systems enabled reduction in average chip-tool interface
temperature up to 10%. Dhar N. R. et al [1] has studied the
effects of MQL on temperature, force, tool wear and product
quality in turning AISI 9310 steel and experimental results
shows that MQL with the present technique has reduced flank
wear and cutting forces by about 5% to 15%. Surface finish
and dimensional accuracy has been improved mainly due to
reduction in friction at tool chip interface by the application of
MQL. Dhar et al. [2] has experimentally investigated the
Effect of Minimum Quantity Lubrication (MQL) on Tool
Wear, Surface Roughness and Dimensional Deviation in
Turning of AISI-4340 Steel, result obtained from this
investigation suggested that MQL machining is better than
that of dry and conventional flood cutting because MQL
provides the benefits mainly by reducing the cutting
temperature, which improves the chip-tool interaction and
maintains sharpness of the cutting edges. Chaudhary S. M. A.
et al. [6] has experimentally investigated the Effect of
minimum quantity lubricant on temperature, chip formation
and cutting force in turning of medium carbon steel. The MQL
has been provided in the form of spray using vegetable oil.
The result obtained from this experiment shows 20%
reduction in average chip-tool interface temperature and 5% to
20%.reduction in cutting forces.
Kamruzzaman M. et al. [8] experimentally investigated the
effects of High-Pressure Coolant (HPC) jet in machining of
42Crmo4 steel by uncoated carbide inserts. The main
objective of this research was to evaluate the effectiveness of
high-pressure coolant in improving the cutting parameters on
harder work material.
Thamizhmanii, S. et al. [4] experimentally investigated the
effect of minimum quantity lubrication on Inconel 718 on a
vertical milling machine with super hard cobalt tool. The
result obtained from this experiment i.e. total length of travel
by super cobalt cutting tool in MQL condition is higher than
that in dry cutting.
Abhang L.B et al. [5] has experimentally investigated the
performance of MQL machining of alloy steel with 10% boric
acid by weight mixed with SAE- 40 base oil during turning of
EN-31 steel using tungsten carbide cutting tool. Minimum
quantity lubricant has reduced the chip-tool interface
temperature by 20 to 30% in this study. Kuram E. et al. [7]
has studied the Effects of the Cutting Fluid Types and Cutting
Parameters on Surface Roughness and Thrust Force on AISI-
304 austenitic stainless steel with HSSE tool with raw and
refined sunflower oil and two other commercial cutting fluids
for evaluation of thrust force and surface roughness during
drilling of AISI 304 stainless steel and experimentally
observed that Lower thrust force values were obtained with
SCF-I and the least thrust force was achieved at spindle speed
of 720 rpm. at a feed rate of 0.12 mm/rev.
Park K.E et al. [11] has conducted a study on droplet and their
distribution for minimum quantity lubrication in milling
operation by using CLSM technique for 3D characterization
and volume measurement of drops. The EDA algorithm has
been used in this study for droplet distribution in milling
operation using minimum quantity lubrication. The
experimental results shows the as the nozzle distance increases
the surface area covered by droplet decreases and also the
droplet size is smaller at higher than as compared to lower
pressure. This study has confirmed that nozzle distance should
be less than 50mm and for higher pressure the smaller nozzle
distance is required.
Hadad M.J et al. [9] has experimentally investigated the
temperature and energy partition in minimum quantity
lubrication during grinding operation having 100Cr6 as a work
material. The temperature has been measured by embedded K-
type thermocouple. The experimental result has proved that
the MQL grinding by oil has reduced the 7-10% energy as
compared to dry grinding.
The review of the literature suggests that minimum quantity
lubrication provides several benefits in machining. But less
3. IJRET: International Journal of Research in Engineering and Technology ISSN: 2319-1163
__________________________________________________________________________________________
Volume: 02 Issue: 06 | Jun-2013, Available @ http://www.ijret.org 933
focus have been attention on the effect of varying the nozzle
distance from the cutting zone and lubricant pressure during
turning operation. So there was a need of study which would
consider this important parameter for finding the best nozzle
distance from cutting zone in terms of cutting temperature
turning operation using minimum quantity lubrication. This is
also the main objective of the present work during machining
of EN-31 steel at industrial speed-feed condition by tungsten
carbide insert with vegetable based oil.
2. EXPERIMENTAL SETUP
Experiments have been carried out by plain turning a 80mm
diameter and 800mm long rod of EN-31 steel on powerful and
rigid lathe (HMT, INDIA, 10hp) at different cutting velocities,
and feeds under dry and minimum quantity lubrication (MQL)
conditions. The machinability characteristic of work material
mainly in term of cutting temperature has been investigated by
varying the nozzle distance. The ranges of the cutting
parameters have selected based on the basis of tool
manufacturer recommendation mentioned in their catalogues
and as per industrial expert advices. The temperature has been
measured by standard K- type thermocouple wires inserted in
the hole drilled on the cutting insert by EDM drilling having
diameter of 1mm. The distance of drilled hole is 0.8mm from
nose radius. The MQL jet has been supplied at pressure of 5
bars through the nozzle at rake face near to the cutting zone at
an appropriate angle. The experimentations have been
conducted by varying the nozzle distance from 15, 30 and
55mm having same cutting parameters in each case and
correspondingly values of Cutting temperature has been noted.
The first phase experimentation has been conducted at 0.5mm
depth of cut having 78mm job diameter and second phase has
been conducted at 1mm depth of cut having 76mm job
diameter.
The nozzle distance has been varied in both case, so total
number of experiments are 84 i.e. 42 in first case and 42 in
second case. The detail of experimentation has been given in
table no. 1-2. The results obtained from experimental work
have been presented in the form of graphs for the comparison
purpose and also to find out the best nozzle distance from the
cutting zone. The MQL jet is mainly focused on the rake face
of tool in this present study. There has been variation of
Cutting temperature and Surface roughness during variation of
nozzle distance and depth of cut. The cutting temperature has
been measured in each case with the help of Standard K-type
thermocouple for the 30 seconds during cutting operation. The
length of work piece is equally distributed among all
experiments for measurement of cutting temperature and
surface roughness in both cases.
Table-1: Detail of experimentation
Sr
No
Item Description
1 Machine Tool
Lathe Machine (Hindustan
Machine Tool, INDIA)10 hp
2 Work Specimen
EN-31 Alloy Steel, Size: φ80
X 1000 mm
3 Cutting tool (insert): SNMG120408
4 Tool holder PSDNN 2525M12
5
Working tool
geometry
-70, -70, 70, 70, 450, 450, 0.8
mm
6
Cutting velocity
(Rpm)
142, 320, 500, 640,800 and
1000
7 Feed rate 0.063 and 0.088mm/rev
8 Depth of cut 0.5 and 1mm
9 MQL supply
Vegetable Oil (Soybean oil)
150ml/hr at 5 bar
10
Distance of
nozzle(mm)
15, 30 and 55
11 Thermocouple K- type (-25 to 12000C)
12 Air Compressor Single phase motor driven
4. IJRET: International Journal of Research in Engineering and Technology ISSN: 2319-1163
__________________________________________________________________________________________
Volume: 02 Issue: 06 | Jun-2013, Available @ http://www.ijret.org 934
Table-2: Experimental conditions for phase 1 and 2
3. RESULTS AND DISCUSSIONS
During machining of ductile materials, heat is generated,
Firstly due to shear and plastic deformation in the primary
deformation zone, secondly due to deformation and sliding at
chip-tool interface and thirdly due to Friction at work-tool
interfaces. Due to all these sources the maximum temperature
is produced at tool chip interface and as a result this high
degree temperature impacts the Cutting forces, Surface
roughness, Tool wear and tool life. Therefore, attempts have
been made to reduce this cutting temperature by the
application of cutting fluids in past as a flood lubrication.
Initially flood lubrication was acceptable due to low
production rate and less pollution, although it require high
flow rate of lubricant. But in this present study MQL with
Soybean oil has been used for cooling and lubrication purpose
because Conventional cutting fluid application cannot cool
and lubricate tool effectively at the chip-tool interface where
the temperature is maximum because it does not reaches
efficiently in cutting zone, but scatter nearby thus reduces its
cooling ability. The area of cutting zone is very small as
compared the area at tool work interface seen visually. On the
other hand high discharge rate in case of flood lubrication
forms the layer nearby cutting zone reduces the heat transfer
rate. So there must be a system which would have high heat
transfer rate in cutting zone as compared to flood lubrication.
Fig-1: Schematic diagram of experimental set up
Fig-2: Photographic view of experimental set up
Fig-3: Photographic view of digital temperature indicator
In present work of application of MQL in the form of jet
targeted at rake face by varying distance has reduced the
cutting temperature as compared dry machining because of
Sr
No
.
Cuttin
g
Speed
(Rpm)
Feed
Rate
(mm/r
ev)
Nozzle
distance
in 1st
case
(mm)
Nozzle
distance
in 2nd
case
(mm)
Nozzle
distance
in 3rd
case
(mm)
1 142 0.063 15 30 55
2 200 0.063 15 30 55
3 320 0.063 15 30 55
4 500 0.063 15 30 55
5 640 0.063 15 30 55
6 800 0.063 15 30 55
7 1000 0.063 15 30 55
8 142 0.088 15 30 55
9 200 0.088 15 30 55
10 320 0.088 15 30 55
11 500 0.088 15 30 55
12 640 0.088 15 30 55
13 800 0.088 15 30 55
14 1000 0.088 15 30 55
14 1000 0.088 15 30 55
5. IJRET: International Journal of Research in Engineering and Technology ISSN: 2319-1163
__________________________________________________________________________________________
Volume: 02 Issue: 06 | Jun-2013, Available @ http://www.ijret.org 935
efficient cooling and lubricity of vegetable oil. This may be
possible because of evaporative cooling action of air assisted
jet, Cutting and healing action of MQL Fluid as well as by
other causes. However, it has been observed that MQL by
Soybean oil jet in its present way of application has reduced
the average cutting temperature by about 5% to 12%
depending upon the levels of cutting parameters and distance
of nozzle from cutting zone. As shown in Fig 4 and 5 the
maximum cutting temperature has been recorded at 55mm
nozzle distance from the cutting zone and least cutting
temperature has been recorded at 30mm nozzle distance.
When nozzle has been placed at 15mm away from cutting
zone then recorded temperature is more than the temperature
recorded at 30mm nozzle distance.
Fig-4: Effect of nozzle distance on cutting temperature at 0.5
doc
Fig-5: Effect of nozzle distance on cutting temperature at 0.5
doc
Fig-6: Effect of nozzle distance on cutting temperature at
1mm doc
The possible reasons for this may be due to spreading of
MQL-Jet’s drop distribution into the cutting zone, which is
very small as compared to size of drop. The drops issued from
the MQL-jet strike at high velocity at tool chip interface,
where workpiece is already rotating at high rpm so the drop
after striking the workpiece spreads into the surrounding and
as a result less cooling effect, when nozzle is placed at 15mm
nozzle distance. Also the distance is so small that the issued
jet would not attain its effective velocity and shape in this
short interval of time and would not cool or lubricate the tool
effectively. On the other hand when nozzle has been placed at
55mm distance, then this distance is so large that issued jet’s
drops does not (reaches) penetrate into the cutting zone and
losses its effectiveness as compared to the 30mm stand-off
distance.
Fig-7: Effect of nozzle distance on cutting temperature at
1mm doc
CONCLUSIONS
The main objectives of present investigation were to find out
the influences of varying the nozzle stand- off distance on
cutting temperature. The cutting temperature has following
relations with stand-off distance during machining.
6. IJRET: International Journal of Research in Engineering and Technology ISSN: 2319-1163
__________________________________________________________________________________________
Volume: 02 Issue: 06 | Jun-2013, Available @ http://www.ijret.org 936
1. The maximum cutting temperature has been recorded at
55mm nozzle stand-off distance. This is 10-15% more
than 30mm nozzle stand-off distance.
2. When Nozzle has been placed at 15mm stand-off distance
then the cutting temperature is 5-8% more than 30mm
nozzle stand- off distance.
3. The influence of nozzle stand-off is nearly equal to the
influence speed rate on cutting temperature during more
than 30mm stand-off distance.
4. The lowest temperature has been recorded during 30mm
stand of distance because of uniform distribution of MQL
jet’s drops distribution to the cutting zone, which may be
not possible during other stand of distances and hence
more temperature.
5. MQL by vegetable oil also protects environment pollution
by discharging reduced amounts of fumes, mist, oxides
during cutting and also reduce health hazards.
REFERENCES
[1] Dhar, N.R and Khan, M. M. A. (2006), “A study of
effects of MQL on temperature, force, tool wear and
product quality in turning AISI 9310 steel” Net
Fieldwise Seminar on Manufacturing and Material
Processing, Pages 30-35, issue(2), 2006.
[2] Dhar, Nikhil Ranjan., Islam, Sumaiya and
Kamruzzaman, Mohammad, (2007), “Effect of
Minimum Quantity Lubrication (MQL) on Tool Wear,
Surface Roughness and Dimensional Deviation in
Turning AISI-4340 Steel” G.U. Journal of Science,
Volume 20(2), Pages 23-32.
[3] Dhar, N. R., Islam, M. W. (2005), “The influence of
Minimum Quantity of Lubrication (MQL) by vegetable
oil-based cutting fluid on machinability of steel,
International Conference on Mechanical Engineering,
Pages 1-5.
[4] Thamizhmanii, S., and Hasan, R. S. (2009), “A study
of minimum quantity lubrication on Inconel 718 steel”,
Archives of Material Science and Engineering, Volume
39, Pages 38-44, September 2009.
[5] Abhang, L B., Hameedullah, M. (2010), “Experimental
Investigation of Minimum Quantity lubricants in Alloy
Steel Turning”, International Journal of Engineering
Science and Technology, Volume 2(7), Pages 3055 –
3053, 2010.
[6] Chaudhary, S. M. A., Dhar, N. R. and Bepari, M. M. A.
(2007) “Effect of Minimum Quantity Lubricant on
Temperature Chip and Cutting Force in Turning
Medium Carbon Steel, International Conference on
Mechanical Engineering, ICME (2007), December
2007
[7] Kuram, E., Ozcelik, B., Demirbas E and Sik, E. (2010),
“Effects of the Cutting Fluid Types and Cutting
Parameters on Surface Roughness and Thrust Force”,
Proceedings of the World Congress on Engineering,
Volume II, July 2010.
[8] Kamruzzamam, M and Dhar, N.R (2008), “The effect
of high Pressure Coolant (HPC) Jet in Machining of
42CRMO4 Steel by Uncoated Carbide Inserts”, Journal
of Mechanical Engineering, Volume ME 39 (No. 2),
Pages 71-77, December 2008.
[9] Hadad, M.J., Tawakoli, T., Sadeghi, M.H., and
Sadeghi, B. (2012), “Temperature and energy partition
in minimum quantity lubrication-MQL grinding
process” International Journal of Machine Tools &
Manufacture, Vol. 54–55(2012), pp.10–17
[10] Tawakoli, T., Hadad, M.J., Sadeghi, M.H.(2010),
“Influence of oil mist parameters on minimum quantity
lubrication – MQL grinding process” International
Journal of Machine Tools & Manufacture, Vol.50
(2010), pp. 521–531.
[11] Park , Kyung-Hee., Yume , Jorge Olortegui., Yoon,
Moon-Chu., and Kwon Patrick.(2010) “A study on
droplet sand their distribution for minimum quantity
lubrication (MQL)” )” International Journal of Machine
Tools & Manufacture ,Vol 50 (2010),pp. 824–833
ACKNOWLEDGMENTS
The work presented in this paper is the outcome of thesis done
by the first author during Master of Technology (Production
Engineering) Degree under the guidance of third author. The
authors are thankful to faculty and staff of Beant College of
Engineering and Technology, Gurdaspur (India) for support
and encouragement.
BIOGRAPHIES
Ajay Kumar is currently working as
Lecturer in Department of Mechanical
Engineering at Rayat Polytechnic College,
Rail Majra, Punjab. After completing his
B.Tech in Mechanical Engineering,
currently he is doing M.Tech at Beant
College of Engineering and Technology, Gurdaspur (India).
Gurpreet Singh is currently working as a
Lecture in Department of Mechanical
Engineering at Rayat Polytechnic
College, Rail Majra, Punjab, India. He
has obtained his M Tech degree in
Production Engineering from PTU
Jalandhar. He has Published numbers of
papers in national and international conferences.
Simranpreet Singh Gill is currently
working as Assistant Professor in
Department of Mechanical Engineering at
Beant College of Engineering and
Technology, Gurdaspur (India). His area
of research work is sustainable
manufacturing technologies. He has published many research
papers in reputed international journals.