This document summarizes a study that used finite element modeling to simulate the broaching process of Inconel718. The study compared simulation results to experimental data and found good agreement for cutting forces. Models for cutting forces as functions of cutting parameters were developed based on simulation results. Additionally, the effects of rake angle and rising per tooth on chip curling and gullet area ratios were examined. Increasing rake angle or decreasing rising per tooth decreased chip curling diameter. Simulated chip curling diameters and area ratios were larger than recommended design values, suggesting gullet dimensions could be increased to improve chip flow.
Analysis effect of drilling parameters on hole delamination during drilling o...eSAT Journals
Abstract Glass fiber reinforced plastic (GFRP) composite materials are widely used industrial, aerospace, and automotive sector. Its have excellent properties such as high strength to weight ratio, higher fatigue limit high stiffness to weight ratio, corrosion resistance and design flexibility. Drilling is one of the major machining operations that are carried out on fiber reinforced metal composite materials to the need for components assembly. There are many problems encountered when drilling Glass fiber reinforced plastic (GFRP) composites. These problems include delaminating of the composite, poor surface roughness and hole deviation. In present experimental investigation analyse the effect of various machining parameters i.e. cutting speed, the feed rate, and the drill diameter on the quality of the drilled holes. Hole deviation of each hole is measured with help of digital vernier calliper. Taguhi's and ANOVA Technique have been employed to study the effect of the interactions between different drilling parameters on deviation of holes. After experiments suggests the optimal conditions for minimum hole deviation. Keywords: Composite Material, Deviation, GFRP, ANNOVA, and Taguchi Methods
Effectiveness of multilayer coated tool in turning of aisi 430 f steeleSAT Journals
Abstract This paper presents minimization of surface roughness in dry turning of AISI 430F steel using TiN-TiCN-Al2O3-ZrCN multilayer coated cemented carbide & cryo-treated inserts. Effect of cutting velocity, feed rate, depth of cut & machining duration is studied on the surface roughness. Taguchi’s design of experiment is used to find the optimum factor levels. It is found that the feed rate has much effect in producing lower surface roughness followed by speed. The depth of cut has lesser role on surface roughness. The result of Taguchi method shows that cutting velocity of 250m/min, feed rate of 0.25 mm/rev and depth of cut of 0.3mm should be maintained as optimal parameter settings for both coated and cryo-treated tools. Cryo-treated tools perform better. Keywords: Cryo-treatment, Dry Turning, Surface roughness, Taguchi Method
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 Study and Optimisation of Mrr In CNC Plasma ARC CuttingIJERA Editor
The research and development in the precise and accurate machining technology of hard metals (Ferrous, non-ferrous and glass etc) is gaining much importance in the industry since last many years. Due to the tremendous competition and cost factor, the non-conventional machining technology is becoming the first choice of the engineers and technicians. In this era of advanced technological processes the CNC plasma arc machining is gaining tremendous ground in the industry. It is much more capable of producing best finished, high accurate machining of very complicated non-symmetrical profile in no time. The main objective and targets of this practical experiment is based to achieve the best possible setting and parameters of operation on a CNC plasma arc machine to achieving speedy work i.e. Maximum material removal rate.
Finite Element Simulation and Experiment of Chip Formation Process during Hig...IDES Editor
As an advanced manufacturing technology which
has been developed rapidly in recent years, high speed
machining is widely applied in many industries. The chip
formation during high speed machining is a complicated
material deformation and removing process. In research area
of high speed machining, the prediction of chip morphology is
a hot and difficult topic. A finite element method based on the
software ABAOUS which involves Johnson-Cook material
model and fracture criterion was used to simulate the serrated
chip morphology and cutting force during high speed
machining of AISI 1045 hardened steel. The serrated chip
morphology and cutting force were observed and measured by
high speed machining experiment of AISI 1045 hardened steel.
The effects of rake angle on cutting force, sawtooth degree
and space between sawteeth were discussed. The investigation
indicates that the simulation results are consistent with the
experiments and this finite element simulation method
presented can be used to predict the chip morphology and
cutting force accurately during high speed machining of
hardened steel.
Analysis effect of drilling parameters on hole delamination during drilling o...eSAT Journals
Abstract Glass fiber reinforced plastic (GFRP) composite materials are widely used industrial, aerospace, and automotive sector. Its have excellent properties such as high strength to weight ratio, higher fatigue limit high stiffness to weight ratio, corrosion resistance and design flexibility. Drilling is one of the major machining operations that are carried out on fiber reinforced metal composite materials to the need for components assembly. There are many problems encountered when drilling Glass fiber reinforced plastic (GFRP) composites. These problems include delaminating of the composite, poor surface roughness and hole deviation. In present experimental investigation analyse the effect of various machining parameters i.e. cutting speed, the feed rate, and the drill diameter on the quality of the drilled holes. Hole deviation of each hole is measured with help of digital vernier calliper. Taguhi's and ANOVA Technique have been employed to study the effect of the interactions between different drilling parameters on deviation of holes. After experiments suggests the optimal conditions for minimum hole deviation. Keywords: Composite Material, Deviation, GFRP, ANNOVA, and Taguchi Methods
Effectiveness of multilayer coated tool in turning of aisi 430 f steeleSAT Journals
Abstract This paper presents minimization of surface roughness in dry turning of AISI 430F steel using TiN-TiCN-Al2O3-ZrCN multilayer coated cemented carbide & cryo-treated inserts. Effect of cutting velocity, feed rate, depth of cut & machining duration is studied on the surface roughness. Taguchi’s design of experiment is used to find the optimum factor levels. It is found that the feed rate has much effect in producing lower surface roughness followed by speed. The depth of cut has lesser role on surface roughness. The result of Taguchi method shows that cutting velocity of 250m/min, feed rate of 0.25 mm/rev and depth of cut of 0.3mm should be maintained as optimal parameter settings for both coated and cryo-treated tools. Cryo-treated tools perform better. Keywords: Cryo-treatment, Dry Turning, Surface roughness, Taguchi Method
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 Study and Optimisation of Mrr In CNC Plasma ARC CuttingIJERA Editor
The research and development in the precise and accurate machining technology of hard metals (Ferrous, non-ferrous and glass etc) is gaining much importance in the industry since last many years. Due to the tremendous competition and cost factor, the non-conventional machining technology is becoming the first choice of the engineers and technicians. In this era of advanced technological processes the CNC plasma arc machining is gaining tremendous ground in the industry. It is much more capable of producing best finished, high accurate machining of very complicated non-symmetrical profile in no time. The main objective and targets of this practical experiment is based to achieve the best possible setting and parameters of operation on a CNC plasma arc machine to achieving speedy work i.e. Maximum material removal rate.
Finite Element Simulation and Experiment of Chip Formation Process during Hig...IDES Editor
As an advanced manufacturing technology which
has been developed rapidly in recent years, high speed
machining is widely applied in many industries. The chip
formation during high speed machining is a complicated
material deformation and removing process. In research area
of high speed machining, the prediction of chip morphology is
a hot and difficult topic. A finite element method based on the
software ABAOUS which involves Johnson-Cook material
model and fracture criterion was used to simulate the serrated
chip morphology and cutting force during high speed
machining of AISI 1045 hardened steel. The serrated chip
morphology and cutting force were observed and measured by
high speed machining experiment of AISI 1045 hardened steel.
The effects of rake angle on cutting force, sawtooth degree
and space between sawteeth were discussed. The investigation
indicates that the simulation results are consistent with the
experiments and this finite element simulation method
presented can be used to predict the chip morphology and
cutting force accurately during high speed machining of
hardened steel.
Finite Element Simulation of Serrated Chip Formation in High Speed CuttingIJRES Journal
The description of high speed cutting process with simulation based on finite element method provides huge superiorities compared to analytical and experimental models. This work focused on the study of high speed cutting process with finite element method, using commercial software ABAQUS/Explicit. The chip morphology is predicted, and the stress, strain and temperature in the chip are all simulated vividly when cutting stably. The serrated chip formation is explained by the adiabatic shear theory. The results showed that it is better to use the adiabatic shear theory to explain the formation of serrated chip.
A adaptive compensation processing method of aeronautical aluminum alloy thin...IJRES Journal
For the machining of large thin work piece, this paper proposes a adaptive compensation
processing method based on the thickness measuring device. This method first by using CMM obtain the actual
coordinates of cutter location point after rough machining, and then adaptive obtain thickness measuring point.
Thickness measuring device are used to get the actual work piece thickness values of the measuring point, and
interpolation to obtain the actual thickness values of all CL points, then obtain compensation value of all CL
points by compared the thickness value and the ideal value. Finally to thin wall grid machining as an example
show that this method can effectively ensure the machining accuracy.
EXPERIMENTAL STUDY OF TURNING OPERATION AND OPTIMIZATION OF MRR AND SURFACE R...AM Publications
In this research work turning operation is performed on AISI 1020 mild steel. Here we conducted experiments by taking Cutting Speed, Feed Rate & Depth of cut as process parameters and got the optimized value of MRR & SR. An L9 orthogonal array, the signal-to-noise (S/N) ratio are employed to the study the performance characteristics in the turning using WNMG332RP carbide insert with a nose radius of 0.8mm. Taguchi method is used to optimize surface roughness and material removal rate (MRR) during machining operation on CNC turning. The experimental result shows that on increasing depth of cut and feed the combined S/N ratio increases while on increasing cutting speed the combined S/N ratio decreases. It results that cutting speed is most significantly influences the Surface roughness followed by feed and in case of MRR, depth of cut is the most significant parameter followed by cutting speed .While the combination of both is most significantly affected by the depth of cut followed by the feed.
Effectiveness of multilayer coated tool in turning of aisi 430 f steeleSAT 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
Effect of machining parameters on surface roughness for 6063 al tic (5 & 10 %...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.
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.
This is my master degree paper under title experimental analysis of surface roughness and material removal rate in turning operation using response surface methodology
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
A novel dual point clamper for low-rigidity plate milling with deformation co...eSAT Journals
Abstract
The surface profile accuracy plays a significant role in achieving the overall product’s functional performance, which is seriously impacted by the cutting forces, clamping forces, and residual stresses. Conventionally, many researches about deformation compensation focus on cutting forces and fixture layout and do not consider clamping forces. Actually, clamping forces, which would dynamically change along with the movements of cutting tools, are essential in precision machining process. In this paper, a novel dual-point clamper method with adaptive deformation compensation is proposed to improve the workpieces milling precision. Based on the Generalized Principle of Superposition Method, a mathematical model considering the deflection from both cutting forces and clamping forces has been estimated and compared with the traditional clamping scheme. Both 3D finite element model (FEM) based simulation experiments and experimental case studies are carried out, and their results show good agreement with each other. The deflection computation and prediction from numerical studies indicates the efficiency and correctness of the proposed approach.
Keywords: Compensation; Deformation; Fixture; Milling
A STUDY ON MULTI-OBJECTIVE OPTIMIZATION OF PLUNGE CENTERLESS GRINDING PROCESS IAEME Publication
Round component with the minimum value of surface roughness and roundness error is the goal of most of the fine machine processes. This paper presents the research on optimization of plunge centerless grinding process when grinding the 20X-carbon infiltration steel (ГOCT standard -
Russia) to achieve the minimum value of surface roughness and roundness errors. The input parameters are center height angle of the workpiece ( β ), longitudinal dressing feed-rate ( sd S ),plunge feed-rate ( k S ) and control wheel velocity ( dd v ) using the result of 29 sets in central composite design matrix to show the two second orders of surface rounghness and roundness error models.
Finite Element Simulation of Serrated Chip Formation in High Speed CuttingIJRES Journal
The description of high speed cutting process with simulation based on finite element method provides huge superiorities compared to analytical and experimental models. This work focused on the study of high speed cutting process with finite element method, using commercial software ABAQUS/Explicit. The chip morphology is predicted, and the stress, strain and temperature in the chip are all simulated vividly when cutting stably. The serrated chip formation is explained by the adiabatic shear theory. The results showed that it is better to use the adiabatic shear theory to explain the formation of serrated chip.
A adaptive compensation processing method of aeronautical aluminum alloy thin...IJRES Journal
For the machining of large thin work piece, this paper proposes a adaptive compensation
processing method based on the thickness measuring device. This method first by using CMM obtain the actual
coordinates of cutter location point after rough machining, and then adaptive obtain thickness measuring point.
Thickness measuring device are used to get the actual work piece thickness values of the measuring point, and
interpolation to obtain the actual thickness values of all CL points, then obtain compensation value of all CL
points by compared the thickness value and the ideal value. Finally to thin wall grid machining as an example
show that this method can effectively ensure the machining accuracy.
EXPERIMENTAL STUDY OF TURNING OPERATION AND OPTIMIZATION OF MRR AND SURFACE R...AM Publications
In this research work turning operation is performed on AISI 1020 mild steel. Here we conducted experiments by taking Cutting Speed, Feed Rate & Depth of cut as process parameters and got the optimized value of MRR & SR. An L9 orthogonal array, the signal-to-noise (S/N) ratio are employed to the study the performance characteristics in the turning using WNMG332RP carbide insert with a nose radius of 0.8mm. Taguchi method is used to optimize surface roughness and material removal rate (MRR) during machining operation on CNC turning. The experimental result shows that on increasing depth of cut and feed the combined S/N ratio increases while on increasing cutting speed the combined S/N ratio decreases. It results that cutting speed is most significantly influences the Surface roughness followed by feed and in case of MRR, depth of cut is the most significant parameter followed by cutting speed .While the combination of both is most significantly affected by the depth of cut followed by the feed.
Effectiveness of multilayer coated tool in turning of aisi 430 f steeleSAT 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
Effect of machining parameters on surface roughness for 6063 al tic (5 & 10 %...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.
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.
This is my master degree paper under title experimental analysis of surface roughness and material removal rate in turning operation using response surface methodology
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
A novel dual point clamper for low-rigidity plate milling with deformation co...eSAT Journals
Abstract
The surface profile accuracy plays a significant role in achieving the overall product’s functional performance, which is seriously impacted by the cutting forces, clamping forces, and residual stresses. Conventionally, many researches about deformation compensation focus on cutting forces and fixture layout and do not consider clamping forces. Actually, clamping forces, which would dynamically change along with the movements of cutting tools, are essential in precision machining process. In this paper, a novel dual-point clamper method with adaptive deformation compensation is proposed to improve the workpieces milling precision. Based on the Generalized Principle of Superposition Method, a mathematical model considering the deflection from both cutting forces and clamping forces has been estimated and compared with the traditional clamping scheme. Both 3D finite element model (FEM) based simulation experiments and experimental case studies are carried out, and their results show good agreement with each other. The deflection computation and prediction from numerical studies indicates the efficiency and correctness of the proposed approach.
Keywords: Compensation; Deformation; Fixture; Milling
A STUDY ON MULTI-OBJECTIVE OPTIMIZATION OF PLUNGE CENTERLESS GRINDING PROCESS IAEME Publication
Round component with the minimum value of surface roughness and roundness error is the goal of most of the fine machine processes. This paper presents the research on optimization of plunge centerless grinding process when grinding the 20X-carbon infiltration steel (ГOCT standard -
Russia) to achieve the minimum value of surface roughness and roundness errors. The input parameters are center height angle of the workpiece ( β ), longitudinal dressing feed-rate ( sd S ),plunge feed-rate ( k S ) and control wheel velocity ( dd v ) using the result of 29 sets in central composite design matrix to show the two second orders of surface rounghness and roundness error models.
ER Publication,
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International Journals,
High Impact Journals,
Monthly Journal,
Good quality Journals,
Research,
Research Papers,
Research Article,
Free Journals, Open access Journals,
erpublication.org,
Engineering Journal,
Science Journals,
Formability of superplastic deep drawing process with moving blank holder for...eSAT Journals
Abstract In this present work, a statistical approach based on Taguchi Techniques and finite element analysis were adopted to determine the formability of conical cup using warm deep drawing process. The process parameters were temperature, coefficient of fric-tion, strain rate and blank holder velocity. The experimental results were validated using a finite element software namely D-FORM. The AA1050–H18 sheets were used for the superplastic deep drawing of the conical cups. The strain rate by itself has a significant effect on the effective stress and the height of the conical cup drawn. The formability of the conical cups was outstand-ing for the surface expansion ratio greater than 2.0.
Keywords: AA1050-H18, superplastic deep drawing, blank holder velocity, temperature, coefficient of friction, strain rate, conical cups, formability.
NUMERICAL AND EXPERIMENTAL VALIDATION OF CHIP MORPHOLOGYIAEME Publication
The extensive research studies are used to divination the behavior of complex
Metal cutting processes. The cutting parameters such as speed, feed and force play
important role on conform chip morphology. The experimental techniques for
investigation the chip morphology is expensive and time consuming. To overcome
these difficulties Finite element modeling and simulation process are used as effective
tool to divination the effect of cutting variables. In the present study FEA simulation
process model is developed to divination the chip morphology and cutting forces in
turning of Al-6061 with WC tool. Johnson cook material models are considered for
visco-elastic material behavior. The obtained simulation process results are compared
with experimental process results
NUMERICAL AND EXPERIMENTAL VALIDATION OF CHIP MORPHOLOGYIAEME Publication
The extensive research studies are used to divination the behavior of complex
Metal cutting processes. The cutting parameters such as speed, feed and force play
important role on conform chip morphology. The experimental techniques for
investigation the chip morphology is expensive and time consuming. To overcome
these difficulties Finite element modeling and simulation process are used as effective
tool to divination the effect of cutting variables. In the present study FEA simulation
process model is developed to divination the chip morphology and cutting forces in
turning of Al-6061 with WC tool. Johnson cook material models are considered for
visco-elastic material behavior. The obtained simulation process results are compared
with experimental process results
Finite Element Simulation and Experiment of Chip Formation Process during Hig...IDES Editor
As an advanced manufacturing technology which
has been developed rapidly in recent years, high speed
machining is widely applied in many industries. The chip
formation during high speed machining is a complicated
material deformation and removing process. In research area
of high speed machining, the prediction of chip morphology is
a hot and difficult topic. A finite element method based on the
software ABAOUS which involves Johnson-Cook material
model and fracture criterion was used to simulate the serrated
chip morphology and cutting force during high speed
machining of AISI 1045 hardened steel. The serrated chip
morphology and cutting force were observed and measured by
high speed machining experiment of AISI 1045 hardened steel.
The effects of rake angle on cutting force, sawtooth degree
and space between sawteeth were discussed. The investigation
indicates that the simulation results are consistent with the
experiments and this finite element simulation method
presented can be used to predict the chip morphology and
cutting force accurately during high speed machining of
hardened steel.
Finite Element Simulation Analysis of Three-Dimensional Cutting Process Based...IJRES Journal
Metal cutting process is a complicated process of plastic deformation and the finite element
method is used to simulate the cutting process. Chip is an important product of the cutting process, it has
important significance to analysis of it's formation process and influence factors in the research of material
processing performance, cutting tool optimization, etc..In this paper, the three-dimensional orthogonal and
oblique cutting models were established based on Johnson-Cook material constitutive models and damage laws.
The formation process of chip was analyzed according to the metal simulation cutting process, the influence of
cutting variables (Cutting depth, Cutting speed, Work piece thickness)on chip was analyzed based on the status
of chip.
Effects of Cutting Tool Parameters on Surface Roughnessirjes
This paper presents of the influence on surface roughness of Co28Cr6Mo medical alloy machined
on a CNC lathe based on cutting parameters (rotational speed, feed rate, depth of cut and nose radius).The
influences of cutting parameters have been presented in graphical form for understanding. To achieve the
minimum surface roughness, the optimum values obtained for rpm, feed rate, depth of cut and nose radius were
respectively, 318 rpm, 0,1 mm/rev, 0,7 mm and 0,8 mm. Maximum surface roughness has been revealed the
values obtained for rpm, feed rate, depth of cut and nose radius were respectively, 318 rpm, 0,25 mm/rev, 0,9
mm and 0,4 mm.
Machining of duplex stainless steels: a comparative studyRasper Dellshad
This paper investigates the machining of super duplex EN 1.4410, standard duplex EN 1.4462 and austenitic EN 1.4404 stainless steels through a two-phase experimental study. In the first phase, a new methodology based on Mamdani fuzzy interference of classified chip shapes in chip breaking charts to predict the chip volume ratio is presented. Chip volume ratios, specific cutting pressures, cutting powers and resultant cutting forces are considered as performance characteristics and converted into single indices using Technique for Order Preference by Similarity to Ideal Solution (TOPSIS), Grey Relational Analysis (GRA), VIKOR method and Utility Analysis (UA). An expert system based on fuzzy rule modelling approach is then adopted to combine the computed indices into a single Universal Characteristics Index (UCI). Results showed that converting the output of different Multiple Attribute Decision Making (MADM) methods into a single UCI index is a simple and efficient technique in determining an optimal combination of the cutting parameters. Constrained simulated annealing optimization procedure is then employed to evaluate the optimal process parameters thereby satisfying conflicting requirements of each of performance factors. First ranking UCI values are analyzed and compared with the output of multi-objective optimization techniques (MOO) using Weighted Sum Method. A remarkable improve in reduction of cutting power consumption, specific cutting pressure, resultant cutting forces are reported when first rank UCI value is directly reported as optimum point instead of performing conventional optimization. In the second phase, cutting force and machine current consumption signals are adopted as indirect cutting tool wear monitoring techniques to graph the tool wear progression. Results showed that the tool life strongly affected by cutting speed and workpiece material.
SPRING BACK PREDICTION OF SHEET METAL IN DEEP DRAWING PROCESSIAEME Publication
Spring back is one of the most significant phenomenon that affect the accurateness of the sheet metal parts. In order to obtain fixed tolerances for the formed parts it is highly recommended to use such process parameters/tool geometry that allow a considerably diminishing of the spring back amount. A Finite Element (FE) model is developed for the 2- D numerical simulation of sheet metal deep drawing process (Parametric Analysis) by using HYPERFORM with the appropriate material properties (anisotropic material) and simplifies boundary conditions
International Journal of Engineering Research and DevelopmentIJERD Editor
Electrical, Electronics and Computer Engineering,
Information Engineering and Technology,
Mechanical, Industrial and Manufacturing Engineering,
Automation and Mechatronics Engineering,
Material and Chemical Engineering,
Civil and Architecture Engineering,
Biotechnology and Bio Engineering,
Environmental Engineering,
Petroleum and Mining Engineering,
Marine and Agriculture engineering,
Aerospace Engineering.
Similar to Finite element modeling of the broaching process of inconel718 (20)
Vaccine management system project report documentation..pdfKamal Acharya
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Courier management system project report.pdfKamal Acharya
It is now-a-days very important for the people to send or receive articles like imported furniture, electronic items, gifts, business goods and the like. People depend vastly on different transport systems which mostly use the manual way of receiving and delivering the articles. There is no way to track the articles till they are received and there is no way to let the customer know what happened in transit, once he booked some articles. In such a situation, we need a system which completely computerizes the cargo activities including time to time tracking of the articles sent. This need is fulfilled by Courier Management System software which is online software for the cargo management people that enables them to receive the goods from a source and send them to a required destination and track their status from time to time.
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.
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Presented at NUS: Fuzzing and Software Security Summer School 2024
This keynote talks about the democratization of fuzzing at scale, highlighting the collaboration between open source communities, academia, and industry to advance the field of fuzzing. It delves into the history of fuzzing, the development of scalable fuzzing platforms, and the empowerment of community-driven research. The talk will further discuss recent advancements leveraging AI/ML and offer insights into the future evolution of the fuzzing landscape.
Quality defects in TMT Bars, Possible causes and Potential Solutions.PrashantGoswami42
Maintaining high-quality standards in the production of TMT bars is crucial for ensuring structural integrity in construction. Addressing common defects through careful monitoring, standardized processes, and advanced technology can significantly improve the quality of TMT bars. Continuous training and adherence to quality control measures will also play a pivotal role in minimizing these defects.
About
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
Technical Specifications
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
Key Features
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface
• Compatible with MAFI CCR system
• Copatiable with IDM8000 CCR
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
Application
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
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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.
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2. Fig.1 Experimental and simulation machining forces
In the FEM simulations of broaching Inconel718, workpiece and tool material were selected
from the standard material library of the software. The workpiece hardness was 44HRC, and the
tool material was M-grade high speed steel. The machine tool was perfectly rigid and no influence
of machine tool dynamics on machining was considered.
Combinations of cutting conditions were as follows: (1) Cutting speed 14m/min, rising per tooth
(RPT) 0.05mm, width of tooth 12mm, the following rake angles were used: 10°, 12°, 15°, 18°. (2)
For 15° rake angle, the three factors and three-level orthogonal design used were listed in Table 1.
The workpiece was 6mm in length and 0.35mm in height. And all these simulations were performed
at 3° relief angle, 0.015mm cutting edge radius and 3mm length of cut. Coolant options used were
as follows: (1) Coolant area option: Exclude tip vicinity; (2) Distance from cutting edge tip: 1mm;
(3) Heat transfer coefficient: 10000W·m-2
·K-1
; (4) Coolant temperature: 20℃.
Results and Discussion. Fig.2 shows that the variation of the machining forces and peak tool
temperature with time obtained from a typical simulation. In Fig.2 “Force-X” represents the main
cutting force, and “Force-Y” represents the force normal to the cutting speed. Fig.3 shows that
average machining forces decrease with rake angle increasing from 10° to 18°.
1817161514131211109
3000
2500
2000
1500
1000
rake angle (°)
Force(N)
Average cutting force (N)
Average perpendicular force (N)
2480.13
2571.25
2683.11
2761.40
1000.88
1078.95
1191.21
1291.36
Fig.2 Cutting forces and tool temperature Fig.3 Effect of rake angle on average cutting forces
40 Advances in Materials Manufacturing Science and Technology XIV
3. Simulation results of the three-level orthogonal tests were given in Table 1.
Table 1 Simulation results
Test
number
Cutting
speed
v [m/min]
Rising per
tooth
af [mm]
Width of
tooth
ae [mm]
Average
cutting force
Fx [N]
Average
perpendicular force
Fy[N]
1 6 0.02 4 392.571 238.648
2 6 0.05 8 1557.413 627.100
3 6 0.08 12 3660.783 1218.708
4 10 0.02 8 819.237 488.309
5 10 0.05 12 2451.268 1017.700
6 10 0.08 4 1273.953 431.397
7 14 0.02 12 1266.475 749.223
8 14 0.05 4 879.471 353.124
9 14 0.08 8 2626.593 924.694
According to orthogonal experiments, empirical models between cutting forces and machining
parameters could be represented by the expression:
F = CFvx
af
y
ae
z
. (1)
where CF, x, y and z are undetermined coefficients. The multiple linear regression models were
fitted based on the test results in Table 1 using the least squares approach by MinitabTM
. The
regression equations are:
Fx = 1958.63v0.104
af
0.811
ae
0.986
. (2)
Fy = 232.758v0.115
af
0.404
ae
0.984
. (3)
The squared multiple correlation R² of MinitabTM
output is respectively equal to 99.8%, 99.3%
and all of the variables are significant by the t tests. In analysis of variance table P-values both
equal to 0.000, showing the estimated regression models in a level of 0.05 are highly significant.
Finite Element Simulations of Chip Curling
Experimental Design and Method. In broaching, the chips are accommodated in the gullets. Due
to this reason, the tooth gullet must be designed to facilitate chips curling smoothly and freely,
sufficient chip space and the strength of broach tooth must be all ensured [9]. Fig.4 shows how a
chip fills the tooth gullet during a broaching operation, and D is the chip curling diameter.
Fig.4 Illustration of how a chip fills the tooth gullet during a broaching operation[10]
Because the chips did not usually curl tightly, the effective volume of tooth gullet should be
greater than the undeformed chip size. If the deformation of the chip width is negligible,
gullet-to-chip area ratio KGC can be expressed as [9]:
Materials Science Forum Vols. 697-698 41
4. KGC = AG/ AJ ≈ πh2
/4afL >1. (4)
Where AG = gullet area; AJ = uncut chip area; h= gullet depth; af = rising per tooth; L = broaching
length. Moreover, the ratio of deformed chip area to uncut chip area KCC can be expressed as:
KCC = πD2
/4afL. (5)
With the help of FEM simulations, directly measuring the diameter D and calculating the ratio
KCC, are undoubtedly useful to design gullet-to-chip area ratio KGC and gullet depth h. Therefore, in
this study chip natural curling process of broaching Inconel718 was simulated, i.e. in simulations
chip curled naturally and freely without the constraints of tooth gullet. The specific cutting variables
used in the investigation were as follows: (1) Cutting speed 14m/min, rising per tooth (RPT)
0.03mm, width of tooth 4mm, and rake angle 10°~18°; (2) Cutting speed 14m/min, rising per tooth
0.02~0.08mm, width of tooth 4mm, and rake angle 15°. The workpiece length was 28mm, length of
cut was 25mm, and other cutting conditions were the same as previously mentioned.
Results and Discussion. Fig.5 and Fig.6 show chip curls at different cutting conditions, and the
values of the diameter D and the ratio KCC are listed in Table 2. As rake angle increases, the
diameter D and the ratio KCC decrease. As rising per tooth increases, the diameter D and the ratio
KCC increase. These agree with the trends of the chip deformation in the actual machining process.
However, the values of KCC obtained from FEM simulations are all larger than the values of KGC
obtained from metal cutting tools design handbook. In design handbook, for superalloys the range
of the recommended values of KGC are 2.2~3.8[9]. Besides, the gullet depth is usually larger than
2mm [9], and close to or slightly smaller than the chip curling diameter obtained from simulations.
Table 2 The values of D and KCC
γ [°] D [mm] KCC af [mm] D [mm] KCC
10 2.30 5.5397 0.02 1.92 3.8604
12 2.24 5.2544 0.04 2.37 5.8820
15 2.15 4.8407 0.06 2.75 7.9194
18 2.05 4.4008 0.08 3.01 9.4877
Fig.5 Effect of rake angle on chip curls Fig.6 Effect of rising per tooth on chip curls
Conclusions
In this study finite element simulations of broaching Inconel718 were carried out, and then the
empirical formulas of cutting forces were established. The conclusions can be summarized as
follows. (1) With the decrease of rake angle or the increase of rising per tooth, the chip curling
diameter increases. (2) The chip curling diameters and the ratios of deformed chip area to uncut
42 Advances in Materials Manufacturing Science and Technology XIV
5. chip area, which was obtained from FEM simulations, are respectively larger than the gullet depth
and the gullet-to-chip area ratio, which was obtained from cutting tools design handbook.
Consequently, under the premise of ensuring the strength of broach tooth, appropriately increasing
the values of gullet-to-chip area ratio and gullet depth, may contribute to chips curling smoothly and
freely, and thus help to improve tool life and workpiece surface quality.
References
[1] B.E. Klamecki: Incipient Chip Formation in Metal Cutting—A Three Dimension Finite
Element Analysis (Ph.D. Dissertation, University of Illinois, 1973)
[2] A.O. Tay, M.G. Stevenson and G.D.V. Davis: Proceedings of the Institution of Mechanical
Engineers Vol. 188 (1974), p. 627
[3] S.L. Soo, D.K. Aspinwall and R.C. Dewes: Journal of Materials Processing Technology Vol.
150 (2004), p. 116
[4] B. Shi and H. Attia: Machining Science and Technology: An International Journal Vol. 14
(2010), p. 149
[5] B. Shi, H. Attia and N. Tounsi: Journal of Manufacturing Science and Engineering Vol. 132
(2010), p. 051008
[6] L.H. Li, H.J. Yang, W.Y. Chen and J. Zhu: Tool Engineering Vol. 44(2010), p. 3 (in Chinese)
[7] B. Shi, H. Attia and N. Tounsi: Journal of Manufacturing Science and Engineering Vol. 132
(2010), p. 051009
[8] B. Shi and H. Attia: Proceedings of the Institution of Mechanical Engineers, Part B, Journal of
Engineering Manufacture Vol. 224 (2010), p.1313
[9] Z.J. Yuan and H.M. Liu: Metal Cutting Tools Design Handbook (China Machine Press, China
2008) (in Chinese)
[10] George Schneider Jr.: Cutting Tool Applications (GMRS Associates, USA 2002)
Materials Science Forum Vols. 697-698 43
6. Advances in Materials Manufacturing Science and Technology XIV
10.4028/www.scientific.net/MSF.697-698
Finite Element Modeling of the Broaching Process of Inconel718
10.4028/www.scientific.net/MSF.697-698.39
DOI References
[5] B. Shi, H. Attia and N. Tounsi: Journal of Manufacturing Science and Engineering Vol. 132 (2010),
p.051008.
doi:10.1115/1.4002455
[7] B. Shi, H. Attia and N. Tounsi: Journal of Manufacturing Science and Engineering Vol. 132 (2010),
p.051009.
doi:10.1115/1.4002455