International Journal of Computational Engineering Research (IJCER) is dedicated to protecting personal information and will make every reasonable effort to handle collected information appropriately. All information collected, as well as related requests, will be handled as carefully and efficiently as possible in accordance with IJCER standards for integrity and objectivity.
Effect of Nozzle Design and Processing Parameter on Characteristics of Glass/...IJERA Editor
Among the various methods commingling process is comparatively better alternative to produce hybrid yarns. The required properties of hybrid yarns can be obtained by controlling main processing parameters such as air pressure, overfeed and take-up speed along with proper selection of nozzle (jet) design. The commingling machine has been fabricated to study the commingling parameters. The nozzle is the most important element of the commingling machine. The design specification of commingling jet along with the processing parameters decides the final characteristics of yarn. In the present study two different types of jets have been selected to investigate commingling characteristics of glass/polypropylene hybrid yarn.
Performance Evaluation of Glass Fibre Reinforced ConcreteIRJET Journal
This document evaluates the performance of glass fibre reinforced concrete with different glass fibre dosages. It discusses the materials used including cement, sand, glass fibres, and water. Mix proportions and various tests conducted are outlined, including workability (slump and compaction factor), compressive strength, and flexural strength tests at 7 and 28 days. The results show that compressive and flexural strength increased with 0.4% glass fibre dosage but decreased with further fibre addition. Workability was reduced by glass fibres but this can be overcome with plasticizers. In conclusion, the addition of glass fibres up to 0.4% improves strength properties of concrete.
Comparison of mechanical properties of the Zro2 and TiO2 filler epoxy compositeIRJET Journal
This document compares the mechanical properties of epoxy composites filled with ZrO2 and TiO2. TiO2 and ZrO2 filler epoxy composites were fabricated using hand layup and cured for 48 hours. Testing was carried out according to ASTM standards. The results showed that the addition of ZrO2 and TiO2 fillers enhanced the mechanical properties of the epoxy composites, with ZrO2 fillers providing the best enhancement. The composites were also subjected to different environmental conditions like mineral water, saline water, petrol and diesel to study their effects. Moisture absorption and thickness swelling tests were conducted to analyze the influence of water uptake on mechanical properties.
Analysis The Mechanical Behaviour Of Jute Fiber Composite An Integrated ApproachIJSRD
In this project work, the jute fiber and glass fiber composite laminate specimens are prepared as per ASTM standards. The composite laminate with the jute and glass fiber are fabricated by simple hand layup technique. The composite laminate undergoes various mechanical testing as tensile test, impact test, water absorption test and the mechanical properties are analyzed. In general the jute fiber composites are great strength, low cost and low density and it’s have enough potential for reinforcing agent.
MECHANICAL PROPERTIES AND SEM ANALYSIS OF GLASS/NYLON/JUTE REINFORCED EPOXY H...IAEME Publication
Now-a-days, the natural fibres from renewable natural resources offer the potential to act as a reinforcing material for polymer composites alternative to the use of glass, carbon and other man-made fibres. Attempts have been made in this project work to study the effect of fibre loading on the physical, mechanical and water absorption behavior of glass/nylon/jute fibre reinforced epoxy based hybrid composites and it’s fabricated by hydraulic press technique. Work has been carried out to investigate the flexural properties, tensile strength, hardness, impact strength and water absorption test of the composites and compared with glass and epoxy composite. It has been observed that the tensile properties, flexural properties and hardness increase with the increase in the weight fraction of natural fibers to certain extent. The morphology of composites is studied by using Scanning Electron Microscope (SEM).
A perfect PPT for jute fiber.
No need to edit again on this.
An executed project by own for final year project in B.Tech. and we got 100% result on this.
Try this for your review
Nonwoven fabrics are produced by bonding or interlacing fibers without weaving or knitting. They have a wide range of applications including hygiene products, packaging, household goods, protective clothing, filters, and geotextiles. There are various standardized test methods to evaluate key nonwoven properties such as tear strength, stiffness, thickness, and resistance to liquids and chemicals. Proper testing ensures nonwovens meet requirements for performance, durability, and safety in their intended end uses.
A new finishing process called Mikro 2100 can significantly increase the life of cutting tools and other wear products. The mechanical process strengthens surfaces and provides a mirror-like finish without changing physical dimensions. Testing shows that tools processed with Mikro 2100 can last up to 10 times longer when machining metals like aluminum and steel. The technology originated to polish optical lenses and has since been applied to products like medical implants, engine components, and cutting tools. Mikro 2100 works by applying microscopic abrasive particles under high centrifugal forces to compress tool surfaces and reduce crack propagation, leading to harder, smoother tools with less friction that require less energy to operate.
Effect of Nozzle Design and Processing Parameter on Characteristics of Glass/...IJERA Editor
Among the various methods commingling process is comparatively better alternative to produce hybrid yarns. The required properties of hybrid yarns can be obtained by controlling main processing parameters such as air pressure, overfeed and take-up speed along with proper selection of nozzle (jet) design. The commingling machine has been fabricated to study the commingling parameters. The nozzle is the most important element of the commingling machine. The design specification of commingling jet along with the processing parameters decides the final characteristics of yarn. In the present study two different types of jets have been selected to investigate commingling characteristics of glass/polypropylene hybrid yarn.
Performance Evaluation of Glass Fibre Reinforced ConcreteIRJET Journal
This document evaluates the performance of glass fibre reinforced concrete with different glass fibre dosages. It discusses the materials used including cement, sand, glass fibres, and water. Mix proportions and various tests conducted are outlined, including workability (slump and compaction factor), compressive strength, and flexural strength tests at 7 and 28 days. The results show that compressive and flexural strength increased with 0.4% glass fibre dosage but decreased with further fibre addition. Workability was reduced by glass fibres but this can be overcome with plasticizers. In conclusion, the addition of glass fibres up to 0.4% improves strength properties of concrete.
Comparison of mechanical properties of the Zro2 and TiO2 filler epoxy compositeIRJET Journal
This document compares the mechanical properties of epoxy composites filled with ZrO2 and TiO2. TiO2 and ZrO2 filler epoxy composites were fabricated using hand layup and cured for 48 hours. Testing was carried out according to ASTM standards. The results showed that the addition of ZrO2 and TiO2 fillers enhanced the mechanical properties of the epoxy composites, with ZrO2 fillers providing the best enhancement. The composites were also subjected to different environmental conditions like mineral water, saline water, petrol and diesel to study their effects. Moisture absorption and thickness swelling tests were conducted to analyze the influence of water uptake on mechanical properties.
Analysis The Mechanical Behaviour Of Jute Fiber Composite An Integrated ApproachIJSRD
In this project work, the jute fiber and glass fiber composite laminate specimens are prepared as per ASTM standards. The composite laminate with the jute and glass fiber are fabricated by simple hand layup technique. The composite laminate undergoes various mechanical testing as tensile test, impact test, water absorption test and the mechanical properties are analyzed. In general the jute fiber composites are great strength, low cost and low density and it’s have enough potential for reinforcing agent.
MECHANICAL PROPERTIES AND SEM ANALYSIS OF GLASS/NYLON/JUTE REINFORCED EPOXY H...IAEME Publication
Now-a-days, the natural fibres from renewable natural resources offer the potential to act as a reinforcing material for polymer composites alternative to the use of glass, carbon and other man-made fibres. Attempts have been made in this project work to study the effect of fibre loading on the physical, mechanical and water absorption behavior of glass/nylon/jute fibre reinforced epoxy based hybrid composites and it’s fabricated by hydraulic press technique. Work has been carried out to investigate the flexural properties, tensile strength, hardness, impact strength and water absorption test of the composites and compared with glass and epoxy composite. It has been observed that the tensile properties, flexural properties and hardness increase with the increase in the weight fraction of natural fibers to certain extent. The morphology of composites is studied by using Scanning Electron Microscope (SEM).
A perfect PPT for jute fiber.
No need to edit again on this.
An executed project by own for final year project in B.Tech. and we got 100% result on this.
Try this for your review
Nonwoven fabrics are produced by bonding or interlacing fibers without weaving or knitting. They have a wide range of applications including hygiene products, packaging, household goods, protective clothing, filters, and geotextiles. There are various standardized test methods to evaluate key nonwoven properties such as tear strength, stiffness, thickness, and resistance to liquids and chemicals. Proper testing ensures nonwovens meet requirements for performance, durability, and safety in their intended end uses.
A new finishing process called Mikro 2100 can significantly increase the life of cutting tools and other wear products. The mechanical process strengthens surfaces and provides a mirror-like finish without changing physical dimensions. Testing shows that tools processed with Mikro 2100 can last up to 10 times longer when machining metals like aluminum and steel. The technology originated to polish optical lenses and has since been applied to products like medical implants, engine components, and cutting tools. Mikro 2100 works by applying microscopic abrasive particles under high centrifugal forces to compress tool surfaces and reduce crack propagation, leading to harder, smoother tools with less friction that require less energy to operate.
IRJET - Assessment of Mechanical Properties of Banana and Basalt Fiber Re...IRJET Journal
1) The document assesses the mechanical properties of composites made from banana fibers, basalt fibers, and epoxy resin.
2) Four composite laminate samples were fabricated with different fiber orientations and tested for tensile and flexural strength.
3) The results showed that the sample with 30° fiber orientation had the highest tensile strength and modulus, while the sample with 60° orientation had the highest flexural strength.
This document provides an overview and table of contents for the book "Plastics Technology Handbook Volume 2: Manufacturing, Composites, Tooling, Auxiliaries". It discusses how the book covers major plastic compounding and forming technologies, from mass production processes like extrusion and injection molding to specialty techniques. It also details how the book covers topics like coating, casting, reaction injection molding, rotational molding, compression molding, reinforced plastics, and auxiliary/secondary equipment. The document provides information on the book's length, topics covered, intended audience, and contents.
This document summarizes research into using kenaf as a raw material for particleboard. Samples of particleboards were made with kenaf at densities of 500, 600, and 700 kg/m3 and resin contents of 8% and 10%. Testing found that boards with a density of 700 kg/m3 performed strongest, while there was no significant difference between the 8% and 10% resin boards. The kenaf particleboards absorbed over 100% in thickness swelling tests and performed well in acoustic tests. The research concludes that kenaf particleboard has commercial value in providing a lower-cost and sustainable alternative to wood-based particleboards.
Presentation FYP/TESIS : Properties Of Particleboard From Acacia Species Usin...Nur Amalina Razali
This presentation discusses a study on the properties of particleboard made from Acacia species using different resin contents and board densities. The objectives are to determine the mechanical and physical properties of particleboard made from Acacia and to evaluate the effects of varying board density and resin content. The methodology involves preparing Acacia chips, drying, screening, hot pressing with varied resin-wood mixtures, and testing the board properties. The results show that boards with density over 600kg/m3 and resin content over 9% meet Malaysian standards, and that increasing density and resin content improves the mechanical and physical properties. Recommendations include using Acacia to replace rubberwood in particleboards and using densities over 600kg/m3 and
Wear Rate Analysis and Investigation of Alternating Material for Food Mixer B...IRJET Journal
This document summarizes a research study that analyzed the wear rate of different bushing materials for a food mixer. The current bushing material is gunmetal, which has lower mechanical strength and a high wear rate. The study aims to find an alternative material with a lower wear rate. Brass composites with varying percentages of molybdenum disulfide (MoS2) were fabricated and tested. A pin-on-disc tribometer was used to measure and compare the wear rates of the existing gunmetal and proposed composite materials under dry and lubricated conditions. An L9 Taguchi experimental design was used to determine the most influential process parameters on wear rate. The results will help identify a composite material with improved performance
Synthesis and testing of dental ceramicIJERA Editor
Zirconia has been recently introduced in prosthetic dentistry for the fabrication of crowns and fixed partial dentures, in combination with CAD/CAM techniques. Zirconia stabilized with Y2O3 has the best properties for these applications. This project aims at producing cast Zirconia blocks primarily for dental application that is more cost effective and biocompatible in comparison to the commercially available zirconia. A simple co-precipitation method was used to produce the zirconia powder; simple, inexpensive and indigenous method of uniaxial compression was employed to cast the zirconia pellet. Further studies have to be carried out to study and improve the densification behaviour, biocompatibility, aesthetics and resistance to masticatory force.
Modification of Revolutionary Product Concrete ClothIRJET Journal
1) The document describes three trials conducted to modify concrete cloth using locally available materials. The first trial used wire mesh but lacked flexibility. The second trial used fiber mesh and had better flexibility but cement spilled through the gunny bag. The third trial replaced the gunny bag with cotton cloth, resolving the spilling issue.
2) Tests were conducted on samples from each trial. Results showed the gunny bag with fiber mesh composition performed best in transverse strength and surface hardness tests.
3) It was concluded that the gunny bag with fiber mesh reinforcement provided a better composition for the modified concrete cloth compared to the other trials.
Polymer investment molding is a technique that combines injection molding and investment casting to create hollow microscale parts. It involves placing a sacrificial element into a micromachined insert, securing the insert in a mold, injection molding plastic around the element, and then dissolving the element to leave a hollow part. The document describes creating microneedles using this technique with different insert designs fabricated via RIE and KOH etching. Aligned and KOH inserts produced the best results, including triangular cross-section needles 300 microns long with a 35 micron hollow tip. While the technique offers a way to create hollow plastic microparts without post-processing, further refinement is still needed to maintain needle tip sharpness during
Investigation of Deformation Analysis of Glass Fiber Reinforced Polymer Injec...Dr. Amarjeet Singh
Warpage is one of the most crucial problems in injection molded products. Factors affecting warpage include Material, Part geometry, gate location, Fiber content & orientation, temperature, etc. Since many factors cause shrinkage and warpage, it is very difficult to distinguish the predominant factor. In the present study, we have focused on contribution of fiber content on warpage of injection molded part. Basic requirement of the part is flatness at sealing area within given tolerance. The required flatness should be within a given tolerance for effective functioning of the component. Flow simulation software has been used to assess the effect of fiber content on warpage and in turn flatness of the component.
Cutting force and surface roughness in cryogenic machining of elastomerIAEME Publication
This document summarizes research on cryogenic machining of elastomers. Experiments were conducted to analyze the effects of rake angle, cutting speed, and feed rate on cutting force and surface roughness under ambient and cryogenic conditions. The results showed that cutting forces were higher for cryogenic machining but decreased with increasing rake angle. Cryogenic machining produced significantly lower surface roughness than ambient machining, especially at high rake angles and cutting speeds, due to increased material rigidity at lower temperatures.
IRJET- Acoustic Performance of Composite Material Skinned Sandwich PanelIRJET Journal
This document discusses experiments performed on honeycomb composite material sandwich panels to study their acoustic performance. Different manufacturing methods for honeycomb structures are described, with the mould method identified as most economical. CAD models and dies were designed to produce glass fiber honeycomb cores. Sandwich panels with glass fiber and aluminum face sheets of varying thicknesses were tested. Results showed transmission loss increased with frequency for glass fiber face sheets, reaching a maximum of 5.23dB. For aluminum face sheets, transmission loss initially increased then decreased below 300Hz before continuing to rise with frequency. Thicker face sheets produced higher transmission loss.
The document discusses a master's project investigating the influence of drilling parameters on burr formation and size for low carbon steel and stainless steel. It outlines the drilling process and issues caused by burrs. The project will experimentally test different drilling speeds, feed rates, drill diameters, workpiece materials and thicknesses. It describes the methodology, including material selection and specifications, equipment used, parameter selection, measurement of burr heights, and how results will be analyzed in stages to understand effects on burr formation. The goal is to identify optimal drilling conditions to minimize burrs.
Modeling and Optimization of Mold Filling Parameters for Maximization of Pr...IRJET Journal
This document summarizes a study that used mold flow simulation software to model and optimize mold filling parameters for maximizing production of plastic materials (ABS and PP) in injection molding. The study modeled a mold filling test specimen in CATIA and imported it into mold flow software to analyze filling time, temperature distribution, frozen layer thickness and other parameters. The simulations showed that ABS had slightly better mold filling characteristics than PP, with faster fill times, thinner frozen layers and higher temperatures overall. The results provide insights to improve the injection molding process and maximize production rates for these plastic materials.
IRJET- Review on Mechanical Characteristics of Synthetic Fibers based Composi...IRJET Journal
This document reviews the mechanical properties of synthetic fiber composites. It discusses how composites made from fibers like glass, Kevlar, and rubber powder have high strength and are attractive materials. The document outlines the materials and process used to create Kevlar fiber reinforced epoxy composites. Tensile and flexural tests are used to evaluate the mechanical properties of the synthesized composites. Results are expected to show that hybridizing Kevlar and glass fibers will improve properties like load carrying capability and impact resistance.
Study of sliding wear rate of hot rolled steel specimen subjected to Zirconia...IJERA Editor
Wear is nothing but loss of material by usage. In a mechanical industry mechanical components will operate
under severe load, temperature and high speeds. Under such a type of situation, when metal to metal contact take
place the surfaces that comes in contact is subjected to wear. These should be considered as a serious affair in an
industry because if the process of wear continues it can reduce service life of the component and also to the
entire mechanical system to which the component has been used. In the light of the above the present work
mainly deals with the study of wear behavior of hot rolled steel with and without zirconia coating on the contact
surface and the effect of zirconia coating with varying thickness.
Formulation and Characterization of BiocretesIRJET Journal
The document discusses a study that formulated and tested biocretes (bio-concretes containing paper mass and waste cloth) to evaluate their mechanical properties. Specifically:
- Biocretes were produced with 3%, 5%, and 7% additions of equal parts paper mass and waste cloth, and tested against a control concrete.
- Compressive, split tensile, and flexural strength tests at 7, 14, and 28 days showed biocretes with 5% additions had the highest strengths. Strengths decreased with additions over 5%.
- The study concluded biocretes could potentially be used in construction applications as a way to utilize waste materials, though further research is needed to fully
IRJET- Vibration Analysis of Boring Tool to Improve Surface FinishIRJET Journal
This document summarizes research into improving surface finish in boring operations by reducing vibrations in the boring tool. The researchers laminated boring tools with carbon fiber and glass fiber to increase stiffness and damping. Experimental testing was conducted on a lathe with varying cutting parameters and overhang lengths. Acceleration data was collected and surface roughness measured. Finite element analysis validated that natural frequencies changed with different laminated materials. The results showed laminating with carbon fiber and glass fiber effectively reduced boring tool vibrations and improved surface finish.
A Review Study on the Effect of Addition of Crumb Rubber and Rice Husk Ash in...IRJET Journal
This document summarizes a review study on the effects of adding crumb rubber and rice husk ash to concrete. Crumb rubber is obtained from grinding scrap tires, while rice husk ash is a byproduct of burning rice husks. Both materials are agricultural and industrial wastes that are generated in large quantities annually. The study found that incorporating these wastes as partial replacements for aggregates and cement in concrete can help address the problems of waste disposal while making concrete more sustainable by reducing its environmental impacts. Concrete with crumb rubber and rice husk ash was found to have improved thermal and sound insulation properties compared to normal concrete, though its mechanical strengths were sometimes reduced. More research is still needed to optimize the ratios of these additions to
Application of Roller Burnishing Process for Final Machining Of Cilindrical S...IOSR Journals
This document discusses the roller burnishing process for final machining of cylindrical surfaces. Roller burnishing is an economical process that improves surface roughness and induces compressive residual stresses in the surface layer through plastic deformation. It can achieve a roughness of less than 0.1 mm and hardness increases of up to 10 HRC. The process results in a smoothed surface with no chips or coolant waste. It can be performed on standard machine tools and provides advantages over other finishing processes such as reduced cycle times, cleaner production, and improved part integrity and fatigue resistance through compressive residual stresses.
Dokumen tersebut memberikan standar pelayanan penyerahan obat kepada pasien di apotek. Standar tersebut mencakup penampilan, sikap, komunikasi verbal dan non-verbal petugas farmasi saat menjelaskan obat dan menyerahkannya kepada pasien. Tujuannya agar proses penyerahan obat berjalan dengan ramah, jelas, dan menghindari kesalahan.
International Journal of Computational Engineering Research (IJCER) is dedicated to protecting personal information and will make every reasonable effort to handle collected information appropriately. All information collected, as well as related requests, will be handled as carefully and efficiently as possible in accordance with IJCER standards for integrity and objectivity.
IRJET - Assessment of Mechanical Properties of Banana and Basalt Fiber Re...IRJET Journal
1) The document assesses the mechanical properties of composites made from banana fibers, basalt fibers, and epoxy resin.
2) Four composite laminate samples were fabricated with different fiber orientations and tested for tensile and flexural strength.
3) The results showed that the sample with 30° fiber orientation had the highest tensile strength and modulus, while the sample with 60° orientation had the highest flexural strength.
This document provides an overview and table of contents for the book "Plastics Technology Handbook Volume 2: Manufacturing, Composites, Tooling, Auxiliaries". It discusses how the book covers major plastic compounding and forming technologies, from mass production processes like extrusion and injection molding to specialty techniques. It also details how the book covers topics like coating, casting, reaction injection molding, rotational molding, compression molding, reinforced plastics, and auxiliary/secondary equipment. The document provides information on the book's length, topics covered, intended audience, and contents.
This document summarizes research into using kenaf as a raw material for particleboard. Samples of particleboards were made with kenaf at densities of 500, 600, and 700 kg/m3 and resin contents of 8% and 10%. Testing found that boards with a density of 700 kg/m3 performed strongest, while there was no significant difference between the 8% and 10% resin boards. The kenaf particleboards absorbed over 100% in thickness swelling tests and performed well in acoustic tests. The research concludes that kenaf particleboard has commercial value in providing a lower-cost and sustainable alternative to wood-based particleboards.
Presentation FYP/TESIS : Properties Of Particleboard From Acacia Species Usin...Nur Amalina Razali
This presentation discusses a study on the properties of particleboard made from Acacia species using different resin contents and board densities. The objectives are to determine the mechanical and physical properties of particleboard made from Acacia and to evaluate the effects of varying board density and resin content. The methodology involves preparing Acacia chips, drying, screening, hot pressing with varied resin-wood mixtures, and testing the board properties. The results show that boards with density over 600kg/m3 and resin content over 9% meet Malaysian standards, and that increasing density and resin content improves the mechanical and physical properties. Recommendations include using Acacia to replace rubberwood in particleboards and using densities over 600kg/m3 and
Wear Rate Analysis and Investigation of Alternating Material for Food Mixer B...IRJET Journal
This document summarizes a research study that analyzed the wear rate of different bushing materials for a food mixer. The current bushing material is gunmetal, which has lower mechanical strength and a high wear rate. The study aims to find an alternative material with a lower wear rate. Brass composites with varying percentages of molybdenum disulfide (MoS2) were fabricated and tested. A pin-on-disc tribometer was used to measure and compare the wear rates of the existing gunmetal and proposed composite materials under dry and lubricated conditions. An L9 Taguchi experimental design was used to determine the most influential process parameters on wear rate. The results will help identify a composite material with improved performance
Synthesis and testing of dental ceramicIJERA Editor
Zirconia has been recently introduced in prosthetic dentistry for the fabrication of crowns and fixed partial dentures, in combination with CAD/CAM techniques. Zirconia stabilized with Y2O3 has the best properties for these applications. This project aims at producing cast Zirconia blocks primarily for dental application that is more cost effective and biocompatible in comparison to the commercially available zirconia. A simple co-precipitation method was used to produce the zirconia powder; simple, inexpensive and indigenous method of uniaxial compression was employed to cast the zirconia pellet. Further studies have to be carried out to study and improve the densification behaviour, biocompatibility, aesthetics and resistance to masticatory force.
Modification of Revolutionary Product Concrete ClothIRJET Journal
1) The document describes three trials conducted to modify concrete cloth using locally available materials. The first trial used wire mesh but lacked flexibility. The second trial used fiber mesh and had better flexibility but cement spilled through the gunny bag. The third trial replaced the gunny bag with cotton cloth, resolving the spilling issue.
2) Tests were conducted on samples from each trial. Results showed the gunny bag with fiber mesh composition performed best in transverse strength and surface hardness tests.
3) It was concluded that the gunny bag with fiber mesh reinforcement provided a better composition for the modified concrete cloth compared to the other trials.
Polymer investment molding is a technique that combines injection molding and investment casting to create hollow microscale parts. It involves placing a sacrificial element into a micromachined insert, securing the insert in a mold, injection molding plastic around the element, and then dissolving the element to leave a hollow part. The document describes creating microneedles using this technique with different insert designs fabricated via RIE and KOH etching. Aligned and KOH inserts produced the best results, including triangular cross-section needles 300 microns long with a 35 micron hollow tip. While the technique offers a way to create hollow plastic microparts without post-processing, further refinement is still needed to maintain needle tip sharpness during
Investigation of Deformation Analysis of Glass Fiber Reinforced Polymer Injec...Dr. Amarjeet Singh
Warpage is one of the most crucial problems in injection molded products. Factors affecting warpage include Material, Part geometry, gate location, Fiber content & orientation, temperature, etc. Since many factors cause shrinkage and warpage, it is very difficult to distinguish the predominant factor. In the present study, we have focused on contribution of fiber content on warpage of injection molded part. Basic requirement of the part is flatness at sealing area within given tolerance. The required flatness should be within a given tolerance for effective functioning of the component. Flow simulation software has been used to assess the effect of fiber content on warpage and in turn flatness of the component.
Cutting force and surface roughness in cryogenic machining of elastomerIAEME Publication
This document summarizes research on cryogenic machining of elastomers. Experiments were conducted to analyze the effects of rake angle, cutting speed, and feed rate on cutting force and surface roughness under ambient and cryogenic conditions. The results showed that cutting forces were higher for cryogenic machining but decreased with increasing rake angle. Cryogenic machining produced significantly lower surface roughness than ambient machining, especially at high rake angles and cutting speeds, due to increased material rigidity at lower temperatures.
IRJET- Acoustic Performance of Composite Material Skinned Sandwich PanelIRJET Journal
This document discusses experiments performed on honeycomb composite material sandwich panels to study their acoustic performance. Different manufacturing methods for honeycomb structures are described, with the mould method identified as most economical. CAD models and dies were designed to produce glass fiber honeycomb cores. Sandwich panels with glass fiber and aluminum face sheets of varying thicknesses were tested. Results showed transmission loss increased with frequency for glass fiber face sheets, reaching a maximum of 5.23dB. For aluminum face sheets, transmission loss initially increased then decreased below 300Hz before continuing to rise with frequency. Thicker face sheets produced higher transmission loss.
The document discusses a master's project investigating the influence of drilling parameters on burr formation and size for low carbon steel and stainless steel. It outlines the drilling process and issues caused by burrs. The project will experimentally test different drilling speeds, feed rates, drill diameters, workpiece materials and thicknesses. It describes the methodology, including material selection and specifications, equipment used, parameter selection, measurement of burr heights, and how results will be analyzed in stages to understand effects on burr formation. The goal is to identify optimal drilling conditions to minimize burrs.
Modeling and Optimization of Mold Filling Parameters for Maximization of Pr...IRJET Journal
This document summarizes a study that used mold flow simulation software to model and optimize mold filling parameters for maximizing production of plastic materials (ABS and PP) in injection molding. The study modeled a mold filling test specimen in CATIA and imported it into mold flow software to analyze filling time, temperature distribution, frozen layer thickness and other parameters. The simulations showed that ABS had slightly better mold filling characteristics than PP, with faster fill times, thinner frozen layers and higher temperatures overall. The results provide insights to improve the injection molding process and maximize production rates for these plastic materials.
IRJET- Review on Mechanical Characteristics of Synthetic Fibers based Composi...IRJET Journal
This document reviews the mechanical properties of synthetic fiber composites. It discusses how composites made from fibers like glass, Kevlar, and rubber powder have high strength and are attractive materials. The document outlines the materials and process used to create Kevlar fiber reinforced epoxy composites. Tensile and flexural tests are used to evaluate the mechanical properties of the synthesized composites. Results are expected to show that hybridizing Kevlar and glass fibers will improve properties like load carrying capability and impact resistance.
Study of sliding wear rate of hot rolled steel specimen subjected to Zirconia...IJERA Editor
Wear is nothing but loss of material by usage. In a mechanical industry mechanical components will operate
under severe load, temperature and high speeds. Under such a type of situation, when metal to metal contact take
place the surfaces that comes in contact is subjected to wear. These should be considered as a serious affair in an
industry because if the process of wear continues it can reduce service life of the component and also to the
entire mechanical system to which the component has been used. In the light of the above the present work
mainly deals with the study of wear behavior of hot rolled steel with and without zirconia coating on the contact
surface and the effect of zirconia coating with varying thickness.
Formulation and Characterization of BiocretesIRJET Journal
The document discusses a study that formulated and tested biocretes (bio-concretes containing paper mass and waste cloth) to evaluate their mechanical properties. Specifically:
- Biocretes were produced with 3%, 5%, and 7% additions of equal parts paper mass and waste cloth, and tested against a control concrete.
- Compressive, split tensile, and flexural strength tests at 7, 14, and 28 days showed biocretes with 5% additions had the highest strengths. Strengths decreased with additions over 5%.
- The study concluded biocretes could potentially be used in construction applications as a way to utilize waste materials, though further research is needed to fully
IRJET- Vibration Analysis of Boring Tool to Improve Surface FinishIRJET Journal
This document summarizes research into improving surface finish in boring operations by reducing vibrations in the boring tool. The researchers laminated boring tools with carbon fiber and glass fiber to increase stiffness and damping. Experimental testing was conducted on a lathe with varying cutting parameters and overhang lengths. Acceleration data was collected and surface roughness measured. Finite element analysis validated that natural frequencies changed with different laminated materials. The results showed laminating with carbon fiber and glass fiber effectively reduced boring tool vibrations and improved surface finish.
A Review Study on the Effect of Addition of Crumb Rubber and Rice Husk Ash in...IRJET Journal
This document summarizes a review study on the effects of adding crumb rubber and rice husk ash to concrete. Crumb rubber is obtained from grinding scrap tires, while rice husk ash is a byproduct of burning rice husks. Both materials are agricultural and industrial wastes that are generated in large quantities annually. The study found that incorporating these wastes as partial replacements for aggregates and cement in concrete can help address the problems of waste disposal while making concrete more sustainable by reducing its environmental impacts. Concrete with crumb rubber and rice husk ash was found to have improved thermal and sound insulation properties compared to normal concrete, though its mechanical strengths were sometimes reduced. More research is still needed to optimize the ratios of these additions to
Application of Roller Burnishing Process for Final Machining Of Cilindrical S...IOSR Journals
This document discusses the roller burnishing process for final machining of cylindrical surfaces. Roller burnishing is an economical process that improves surface roughness and induces compressive residual stresses in the surface layer through plastic deformation. It can achieve a roughness of less than 0.1 mm and hardness increases of up to 10 HRC. The process results in a smoothed surface with no chips or coolant waste. It can be performed on standard machine tools and provides advantages over other finishing processes such as reduced cycle times, cleaner production, and improved part integrity and fatigue resistance through compressive residual stresses.
Dokumen tersebut memberikan standar pelayanan penyerahan obat kepada pasien di apotek. Standar tersebut mencakup penampilan, sikap, komunikasi verbal dan non-verbal petugas farmasi saat menjelaskan obat dan menyerahkannya kepada pasien. Tujuannya agar proses penyerahan obat berjalan dengan ramah, jelas, dan menghindari kesalahan.
International Journal of Computational Engineering Research (IJCER) is dedicated to protecting personal information and will make every reasonable effort to handle collected information appropriately. All information collected, as well as related requests, will be handled as carefully and efficiently as possible in accordance with IJCER standards for integrity and objectivity.
The Strategic Vision: Visualizing Data From Multiple SourcesInside Analysis
The Briefing Room with Barbara Wixom and Tableau
Live Webcast on March 18, 2014
Watch the archive: https://bloorgroup.webex.com/bloorgroup/lsr.php?RCID=2ce6977f93f7a3004e6084518e4ae1e3
Today’s data consumer can be just about anyone, from the CEO to the retail floor associate. With information assets sprawling across the enterprise and the Web, bringing them all together into a single, accessible view can turn into an onerous process. But when users are given access to data from cloud applications and on-premise data sets, every decision from the top down can be information-driven.
Register for this episode of The Briefing Room to learn from MIT Analyst Barbara Wixom, who will explain how leveraging the cloud as a delivery mechanism can play a key role in generating business value and insight. She will be briefed by Suzanne Hoffman of Tableau, who will show how Tableau Online can help analysts and consumers uncover the value of data. She’ll discuss how the advantage of connecting cloud-based applications with other data sources can drive decisions faster and help businesses stay nimble.
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A woman filed a complaint with the police station against a man named Yoganter Ballal for harassing and humiliating her and her family after she refused to marry him. The woman's parents had initially discussed a potential marriage between her and Ballal, but did not find him to be a compatible match after reviewing their horoscopes. Despite being told the woman was not interested, Ballal has twice visited her house uninvited and is pressuring her to meet with him. The woman is requesting the police take punitive action against Ballal to stop the harassment.
The document reflects on the author's leadership style through several sections. It begins by defining leadership and outlining the author's personal leadership assets like taking feedback and using different conflict resolution approaches. It then details a personal action plan to develop areas like flexibility, delegation, and time management. The author discusses how textbooks informed their style, focusing on developing skills suggested in readings. In conclusion, the author reflects on challenges of self-reflection but values feedback to grow professionally.
reflexiones entorno a la enseñanza del espacioYakelin Tenorio
El documento discute varios temas relacionados con la enseñanza del espacio en la escuela primaria. Distingue entre enseñar la noción operativa del espacio y abordar problemas espaciales didácticamente. También analiza ideas vigentes sobre la enseñanza de relaciones espaciales y los conocimientos espaciales prácticos que los niños desarrollan. La escuela debe ofrecer oportunidades para que los estudiantes resuelvan nuevos problemas espaciales y desarrollen su comprensión conceptual del espacio.
International Journal of Computational Engineering Research (IJCER) is dedicated to protecting personal information and will make every reasonable effort to handle collected information appropriately. All information collected, as well as related requests, will be handled as carefully and efficiently as possible in accordance with IJCER standards for integrity and objectivity.
TEC El ciclo PHVA planear hacer verificar y actuarAxel Panuco
Roberto Axel Panuco Sierra completó con éxito el curso "El ciclo PHVA: planear, hacer, verificar y actuar" impartido por el Círculo de Actualización Profesional de la Universidad Virtual del Tecnológico de Monterrey el 14 de junio de 2007. La Universidad Virtual emite este certificado para confirmar la participación y finalización de Roberto en el curso.
Rubrica sobre herramienta digital, Tux Paint 11042014
La alumna Silvestre Gerardo Leslie Anahí evaluó la herramienta digital Tux Paint utilizando una rúbrica. Tux Paint recibió calificaciones excelentes en la mayoría de las categorías, incluyendo colores llamativos, sonidos, interactividad con los usuarios, facilidad de uso y capacidad para desarrollar la creatividad e imaginación de los usuarios. La herramienta digital está dirigida a niños de 3 años en adelante y ayuda a desarrollar habilidades con la tecnología. Sobre la base de esta evaluación
La serigrafía es una técnica de impresión que implica transferir tinta a través de una malla tensada. La tinta pasa a través de la malla en las áreas de la imagen y se deposita en la superficie de impresión. Es un método repetitivo que permite imprimir cientos o miles de copias manteniendo la definición. Existen diferentes tipos de tintas y acabados para lograr diversos efectos en la prenda o textil.
Dokumen tersebut membahas mengenai pengolahan dan pengawetan bahan pangan untuk memperpanjang masa simpannya sehingga kerusakan yang disebabkan oleh faktor fisik, kimia, dan mikrobiologi dapat dicegah. Bahan pangan umumnya diolah dan diolah untuk mengubah bentuk aslinya agar tahan lama. Karbohidrat merupakan komponen utama bahan pangan yang terdiri dari berbagai jenis seperti monosakarida, dis
This certificate certifies that Roberto Axel Panuco Sierra has achieved the ITIL Foundation Certificate in IT Service Management. The certificate is valid from August 19, 2013 and has the registration number G750067413RP and certificate number 9980037777957046. It was printed on June 17, 2015 and was issued by Peoplecert Group.
Los medios de transporte han evolucionado considerablemente a través del tiempo. El documento describe los diferentes tipos de transporte terrestre, acuático y aéreo e identifica cómo cada uno ha impactado la vida cotidiana y el desarrollo de la sociedad. Explica la evolución desde los primeros carros tirados por animales hasta los modernos automóviles, trenes, aviones y barcos impulsados por motores.
The document discusses the history and development of a new technology called blockchain. Blockchain was originally developed for the digital currency Bitcoin in 2008 as a way to record transactions in a secure, decentralized manner without the need for a central authority. Since then, blockchain has expanded beyond cryptocurrencies and is now being applied to other areas like banking, supply chain management, and digital identity verification due to its transparency and security.
The Baptist Children's Homes (BCH) provides residential care, education, and social services to children and families throughout North Carolina as well as orphan care in Guatemala. Children come to BCH from the local community due to family crises like abuse or neglect. Case managers work with children and their families to help overcome challenges. BCH operates multiple residential campuses that provide family-style living for school-aged children, emergency care, transitional living, family care, teen mother care, and wilderness camping programs. BCH also offers services for developmentally disabled adults and aging adults. All programs aim to help children and adults reach their highest level of independence.
Igniting Planetary Unity and CooperationYan Golding
This document outlines a framework called United Earth for uniting social and environmental movements toward achieving planetary unity and cultural transformation. It describes three complementary realms of transition - personal, local, and global. The global realm would introduce a system of whole-systems cultural redesign based on planetary unity and cooperation. United Earth is not an organization but a way to collaborate and promote initiatives with shared goals of caring for people and the planet, fair share for all, and mainstreaming solutions. A Conference of Movements and United Earth Manifesto are proposed to declare shared vision, principles, objectives and strategies toward inspiring a conscious transition to a life-sustaining human culture.
This document summarizes a laboratory experiment on low-cost manufacturing of composite laminates using Vacuum Assisted Resin Transfer Molding (VARTM). The experiment introduces students to composite materials and manufacturing techniques like wet lay-up, prepreg, and VARTM. It describes the VARTM process which involves laying fabric in a mold, applying vacuum, injecting resin via pump, and curing. The goal is for students to learn about composites and mechanical engineering concepts through hands-on fabrication.
Experimental Investigation On Mechanical Properties Of Hybrid Jute Fiber Rein...dbpublications
The composite manufacturing has been a wide area of research and it is the preferred choice due to its superior properties like low density, stiffness, light weight and possesses better mechanical properties. This has found its wide applications in aerospace, automotive, marine and sporting industries. There has been continuous lookout for synthesizing composites without compromising on the mechanical and physical properties. In this project, fiber reinforced composites is preparing with jute fibers & glass fiber of fiber length 5-6 mm. The resins used in this study are epoxy. The prepared composites were tested to study the mechanical properties of the composite such as tensile strength, flexural strength, impact strength and hardness.
Product Development for Future using Rapid Prototyping TechniquesIRJET Journal
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This document is a report on the manufacturing of a composite chair for a course project. It discusses the materials used, including glass fiber fabric and polyester resin. The manufacturing process involved cleaning the mold, applying a releasing agent, laying up layers of fiber with resin in the mold, applying vacuum pressure, and curing at room temperature over 4-5 hours. Legs were then attached to the cured composite base by bonding with additional fabric layers. Microscopic examination was conducted to analyze the microstructure of the composite and identify any defects from the manufacturing process.
This document discusses several common composite manufacturing processes. It describes open molding techniques like hand lay-up where reinforcement is placed in an open mold and resin is applied. It also discusses vacuum bag molding where layers are assembled and compressed using vacuum pressure. Other processes covered include filament winding, pultrusion, sheet molding compound, and resin transfer molding which injects resin into a closed mold. Each process is suitable for different part geometries and production volumes.
The document discusses various methods for processing polymer matrix composites. It describes open molding processes like hand lay-up, spray-up, vacuum bagging, and filament winding which apply resin and fibers to a mold surface. It also covers closed molding processes like compression, injection, and pultrusion molding which use two-piece molds. Key factors in selecting a process include the materials, part geometry, and production quantities. Each method has advantages for different applications like boats, tubs, or structural panels.
Woven Fiberglass Fabric Manufacturing Business Using E Class Imported Yarns (...Ajjay Kumar Gupta
1. The document discusses setting up a manufacturing business for weaving fiberglass fabric using imported yarns for domestic and export markets.
2. It provides details on the fiberglass weaving process, from preparing warp yarn beams to final inspection of the woven fabric. Key steps include warping, sizing, beaming, weaving, heat treatment to remove sizing, and surface treatment.
3. The market outlook suggests growing demand for fiberglass fabrics will drive the global market to $13.48 billion by 2022, with e-glass fabric seeing the fastest growth due to its properties and cost-efficiency in various applications.
Hybrid polymer composites are the materials made by combining two or more
different type of fibers in a matrix. Hybrid polymer composite material offers the
designer to obtain the required properties in a controlled considerable extent by the
choice of fibers and matrix. The properties are tailored in the material by selecting
different kinds of fiber incorporated in the same resin matrix. They offer wide range of
properties that cannot be obtained with a single type of reinforcement. Due to its high
specific strengths, high specific modulus, low densities, light weight etc. based on its
applications. Presently they are playing a vital role in aerospace, defence, transport,
sport applications. Worldwide researches are keenly interested in finding out their
behavior in real life exposed to various environmental conditions, variety of loads etc.
In this paper, We fabricated carbon, e-glass and hybrid composites by using hand
layup technique in uni-directional orientation with epoxy as a matrix material and
conducted various tests such as tensile, compression on Universal Testing Machine
(UTM) and hardness. The results are validated with FEA and observed that Al-6061-
T6 which is used in manufacturing of military aircraft landing mats, truck bodies and
frames etc. has a tensile strength of about 310.25Mpa.The tensile strength of hybrid
fiber is 341Mpa which is higher than Al 6061-T6. We have compared the
experimental results with ansys results and found that the experimental values are
very close to the ansys results. But when compared within the fibers carbon fiber
exhibited more strength when compared to other fibers
The document discusses various open mold and closed mold fabrication methods for polymer matrix composites. Open mold fabrication includes hand lay-up, spray-up, tape lay-up, and filament winding methods. Closed mold methods like compression molding, injection molding, and transfer molding are used for mass production of identical parts. Specific processes like hand lay-up, spray-up, tape lay-up, filament winding, compression molding, injection molding, and pultrusion are then described in detail.
The document discusses various methods for manufacturing fiber-polymer composites. It describes processes for making carbon, glass, and aramid fibers and discusses how they are incorporated into composites. Methods for composite manufacturing include prepreg-based processes like manual layup, automated tape laying, and fiber placement as well as resin infusion methods such as resin transfer molding, vacuum assisted resin transfer molding, and resin film infusion. Other topics covered include filament winding, pultrusion, machining composites, and future directions of composite manufacturing.
The document discusses various methods for manufacturing fiber-polymer composites. It describes processes for making carbon, glass, and aramid fibers and discusses their properties. It also explains different composite manufacturing techniques like prepreg-based processes (manual layup, automated tape laying, automated fiber placement), resin infusion processes (resin transfer molding, vacuum assisted resin transfer molding, resin film infusion, filament winding, pultrusion), and machining of composites. The document outlines the current and future scope of fiber-polymer composite manufacturing.
The document discusses various techniques for manufacturing composites, including hand layup, pultrusion, resin transfer molding, and injection molding. It provides details on the hand layup process, describing how dry fibers and resins are layered by hand in an open mold. Pultrusion is defined as a continuous process that pulls reinforced fibers through a resin bath and heated die to produce cured, constant cross-section parts. Resin transfer molding involves packing dry fibers into a mold, injecting resin under pressure, and curing the mold to produce complex, net-shape parts in medium volumes. Each technique has advantages for certain applications in industries like aerospace, transportation, and construction.
The document discusses various techniques for manufacturing composites, including hand layup, pultrusion, resin transfer molding, and injection molding. It provides details on the hand layup process, describing how dry fibers and resins are layered by hand in an open mold. Pultrusion is defined as a continuous process that pulls reinforced fibers through a resin bath and heated die to produce cured, constant cross-section parts. Resin transfer molding involves packing dry fibers into a mold, injecting resin under pressure, and curing the mold to produce complex, net-shape parts in medium volumes. Each technique has advantages for certain applications in industries like aerospace, transportation, and construction.
IRJET- Fabrication and Testing of E-Glass with E-Waste as Filler MaterialIRJET Journal
This document summarizes research on fabricating and testing epoxy composites reinforced with E-glass fibers and filled with varying amounts of e-waste material. Specimens containing 0%, 5%, and 15% e-waste by weight were produced using hand layup and cold pressing. Mechanical tests showed that tensile, flexural, and compressive strength generally decreased as e-waste content increased, while hardness also decreased. The 5% e-waste composite exhibited the highest compressile strength. The research demonstrated the feasibility of incorporating e-waste as a filler in fiber-reinforced polymer composites to enable its reuse and reduce electronic waste.
This document discusses various methods for producing composites, which are divided into open molding and closed molding. Open molding methods described include hand lay-up, spray-up, and filament winding. Closed molding methods include compression molding, pultrusion, vacuum bag molding, and vacuum infusion processing. Each method is briefly described in terms of its process, molds used, advantages, and typical products produced.
The document describes several common composite manufacturing techniques including wet lay-up, vacuum bagging, compression moulding, filament winding, pultrusion, and resin transfer moulding. Each technique involves different processes for combining fibres and resin such as applying layers by hand, using pressure and heat, winding fibres onto a rotating mandrel, pulling fibres through a resin bath, or injecting resin into a mould containing dry fibres. The techniques are suited for different part geometries and production volumes.
Fabrication of Pneumatic Compression Molding Machine for FRP CompositesIRJET Journal
This document describes the development of a pneumatically operated compression molding machine for producing fiber reinforced polymer composite samples. The machine uses a pneumatic cylinder powered by compressed air to apply pressure to a heated mold containing the composite materials. Epoxy resin reinforced with either carbon fiber or coconut fiber was used to produce test specimens. The specimens were tested in tension and the carbon fiber composite was found to have a tensile strength of 36 N/mm2 while the coconut fiber composite was 13 N/mm2, demonstrating the higher strength of the carbon fiber reinforcement. The machine provides a low-cost option for researchers and manufacturers to produce small composite samples for testing purposes.
Design of automatic wall plastering machineLaukik Raut
Due to manual process of wall plastering on construction site, there is a huge scale requirement of labor and hence
the labor cost is responsible for increasing the price of construction or project work. The quality of work is mostly
depending on the skill of the labor work in manual plastering process.
The solution of these problems is just to automate the process, so that there will be a saving of period and cost
and getting good plaster finishing to the walls. The plastering machine can plaster the walls automatically and
very smoothly. Due to which the process will fast and there will be saving of cost and time this will helps to reduce
the total cost, total time which ultimately responsible for the growth and hence the progress rate of a country is
going to increase
MSE-4105-Chapter-2-Manufacturing of Composites.pdfShamahaKhondoker
This document discusses various processing techniques and manufacturing processes for fiber-reinforced polymer matrix composites. It describes structural, semi-structural, and non-structural processing techniques based on fiber alignment. Various manufacturing processes are then discussed, including hand lay-up, pultrusion, resin transfer molding, filament winding, compression molding, injection molding, blow molding, and infiltration. Key factors affecting the selection of manufacturing processes are identified as production rate, cost, part requirements, geometry, and material.
20 Comprehensive Checklist of Designing and Developing a WebsitePixlogix Infotech
Dive into the world of Website Designing and Developing with Pixlogix! Looking to create a stunning online presence? Look no further! Our comprehensive checklist covers everything you need to know to craft a website that stands out. From user-friendly design to seamless functionality, we've got you covered. Don't miss out on this invaluable resource! Check out our checklist now at Pixlogix and start your journey towards a captivating online presence today.
Pushing the limits of ePRTC: 100ns holdover for 100 daysAdtran
At WSTS 2024, Alon Stern explored the topic of parametric holdover and explained how recent research findings can be implemented in real-world PNT networks to achieve 100 nanoseconds of accuracy for up to 100 days.
Why You Should Replace Windows 11 with Nitrux Linux 3.5.0 for enhanced perfor...SOFTTECHHUB
The choice of an operating system plays a pivotal role in shaping our computing experience. For decades, Microsoft's Windows has dominated the market, offering a familiar and widely adopted platform for personal and professional use. However, as technological advancements continue to push the boundaries of innovation, alternative operating systems have emerged, challenging the status quo and offering users a fresh perspective on computing.
One such alternative that has garnered significant attention and acclaim is Nitrux Linux 3.5.0, a sleek, powerful, and user-friendly Linux distribution that promises to redefine the way we interact with our devices. With its focus on performance, security, and customization, Nitrux Linux presents a compelling case for those seeking to break free from the constraints of proprietary software and embrace the freedom and flexibility of open-source computing.
TrustArc Webinar - 2024 Global Privacy SurveyTrustArc
How does your privacy program stack up against your peers? What challenges are privacy teams tackling and prioritizing in 2024?
In the fifth annual Global Privacy Benchmarks Survey, we asked over 1,800 global privacy professionals and business executives to share their perspectives on the current state of privacy inside and outside of their organizations. This year’s report focused on emerging areas of importance for privacy and compliance professionals, including considerations and implications of Artificial Intelligence (AI) technologies, building brand trust, and different approaches for achieving higher privacy competence scores.
See how organizational priorities and strategic approaches to data security and privacy are evolving around the globe.
This webinar will review:
- The top 10 privacy insights from the fifth annual Global Privacy Benchmarks Survey
- The top challenges for privacy leaders, practitioners, and organizations in 2024
- Key themes to consider in developing and maintaining your privacy program
Observability Concepts EVERY Developer Should Know -- DeveloperWeek Europe.pdfPaige Cruz
Monitoring and observability aren’t traditionally found in software curriculums and many of us cobble this knowledge together from whatever vendor or ecosystem we were first introduced to and whatever is a part of your current company’s observability stack.
While the dev and ops silo continues to crumble….many organizations still relegate monitoring & observability as the purview of ops, infra and SRE teams. This is a mistake - achieving a highly observable system requires collaboration up and down the stack.
I, a former op, would like to extend an invitation to all application developers to join the observability party will share these foundational concepts to build on:
A tale of scale & speed: How the US Navy is enabling software delivery from l...sonjaschweigert1
Rapid and secure feature delivery is a goal across every application team and every branch of the DoD. The Navy’s DevSecOps platform, Party Barge, has achieved:
- Reduction in onboarding time from 5 weeks to 1 day
- Improved developer experience and productivity through actionable findings and reduction of false positives
- Maintenance of superior security standards and inherent policy enforcement with Authorization to Operate (ATO)
Development teams can ship efficiently and ensure applications are cyber ready for Navy Authorizing Officials (AOs). In this webinar, Sigma Defense and Anchore will give attendees a look behind the scenes and demo secure pipeline automation and security artifacts that speed up application ATO and time to production.
We will cover:
- How to remove silos in DevSecOps
- How to build efficient development pipeline roles and component templates
- How to deliver security artifacts that matter for ATO’s (SBOMs, vulnerability reports, and policy evidence)
- How to streamline operations with automated policy checks on container images
Communications Mining Series - Zero to Hero - Session 1DianaGray10
This session provides introduction to UiPath Communication Mining, importance and platform overview. You will acquire a good understand of the phases in Communication Mining as we go over the platform with you. Topics covered:
• Communication Mining Overview
• Why is it important?
• How can it help today’s business and the benefits
• Phases in Communication Mining
• Demo on Platform overview
• Q/A
Unlocking Productivity: Leveraging the Potential of Copilot in Microsoft 365, a presentation by Christoforos Vlachos, Senior Solutions Manager – Modern Workplace, Uni Systems
Goodbye Windows 11: Make Way for Nitrux Linux 3.5.0!SOFTTECHHUB
As the digital landscape continually evolves, operating systems play a critical role in shaping user experiences and productivity. The launch of Nitrux Linux 3.5.0 marks a significant milestone, offering a robust alternative to traditional systems such as Windows 11. This article delves into the essence of Nitrux Linux 3.5.0, exploring its unique features, advantages, and how it stands as a compelling choice for both casual users and tech enthusiasts.
Unlock the Future of Search with MongoDB Atlas_ Vector Search Unleashed.pdfMalak Abu Hammad
Discover how MongoDB Atlas and vector search technology can revolutionize your application's search capabilities. This comprehensive presentation covers:
* What is Vector Search?
* Importance and benefits of vector search
* Practical use cases across various industries
* Step-by-step implementation guide
* Live demos with code snippets
* Enhancing LLM capabilities with vector search
* Best practices and optimization strategies
Perfect for developers, AI enthusiasts, and tech leaders. Learn how to leverage MongoDB Atlas to deliver highly relevant, context-aware search results, transforming your data retrieval process. Stay ahead in tech innovation and maximize the potential of your applications.
#MongoDB #VectorSearch #AI #SemanticSearch #TechInnovation #DataScience #LLM #MachineLearning #SearchTechnology
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Enchancing adoption of Open Source Libraries. A case study on Albumentations.AIVladimir Iglovikov, Ph.D.
Presented by Vladimir Iglovikov:
- https://www.linkedin.com/in/iglovikov/
- https://x.com/viglovikov
- https://www.instagram.com/ternaus/
This presentation delves into the journey of Albumentations.ai, a highly successful open-source library for data augmentation.
Created out of a necessity for superior performance in Kaggle competitions, Albumentations has grown to become a widely used tool among data scientists and machine learning practitioners.
This case study covers various aspects, including:
People: The contributors and community that have supported Albumentations.
Metrics: The success indicators such as downloads, daily active users, GitHub stars, and financial contributions.
Challenges: The hurdles in monetizing open-source projects and measuring user engagement.
Development Practices: Best practices for creating, maintaining, and scaling open-source libraries, including code hygiene, CI/CD, and fast iteration.
Community Building: Strategies for making adoption easy, iterating quickly, and fostering a vibrant, engaged community.
Marketing: Both online and offline marketing tactics, focusing on real, impactful interactions and collaborations.
Mental Health: Maintaining balance and not feeling pressured by user demands.
Key insights include the importance of automation, making the adoption process seamless, and leveraging offline interactions for marketing. The presentation also emphasizes the need for continuous small improvements and building a friendly, inclusive community that contributes to the project's growth.
Vladimir Iglovikov brings his extensive experience as a Kaggle Grandmaster, ex-Staff ML Engineer at Lyft, sharing valuable lessons and practical advice for anyone looking to enhance the adoption of their open-source projects.
Explore more about Albumentations and join the community at:
GitHub: https://github.com/albumentations-team/albumentations
Website: https://albumentations.ai/
LinkedIn: https://www.linkedin.com/company/100504475
Twitter: https://x.com/albumentations
Encryption in Microsoft 365 - ExpertsLive Netherlands 2024Albert Hoitingh
In this session I delve into the encryption technology used in Microsoft 365 and Microsoft Purview. Including the concepts of Customer Key and Double Key Encryption.
UiPath Test Automation using UiPath Test Suite series, part 6DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 6. In this session, we will cover Test Automation with generative AI and Open AI.
UiPath Test Automation with generative AI and Open AI webinar offers an in-depth exploration of leveraging cutting-edge technologies for test automation within the UiPath platform. Attendees will delve into the integration of generative AI, a test automation solution, with Open AI advanced natural language processing capabilities.
Throughout the session, participants will discover how this synergy empowers testers to automate repetitive tasks, enhance testing accuracy, and expedite the software testing life cycle. Topics covered include the seamless integration process, practical use cases, and the benefits of harnessing AI-driven automation for UiPath testing initiatives. By attending this webinar, testers, and automation professionals can gain valuable insights into harnessing the power of AI to optimize their test automation workflows within the UiPath ecosystem, ultimately driving efficiency and quality in software development processes.
What will you get from this session?
1. Insights into integrating generative AI.
2. Understanding how this integration enhances test automation within the UiPath platform
3. Practical demonstrations
4. Exploration of real-world use cases illustrating the benefits of AI-driven test automation for UiPath
Topics covered:
What is generative AI
Test Automation with generative AI and Open AI.
UiPath integration with generative AI
Speaker:
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
UiPath Test Automation using UiPath Test Suite series, part 6
R033092097
1. International Journal Of Computational Engineering Research (ijceronline.com) Vol. 3 Issue. 3
92
||Issn||2250-3005|| (Online) ||March||2013|| ||www.ijceronline.com||
Newly Developed Automatic Lay-Up Process for Manufacturing
of FRP Sheets
Prof. A. R. Chaple1
, Prof. S.S. Khedakar2
, Prof. S.R. Dharmadhikari3
, Mr.
N.R. Chaple4
.
1
Asst.Prof., Dept Of Mechanical Engg., DBACER, Nagpur (M.S.), India.
2
Asst.Prof., Dept Of Mechanical Engg., YCCE, Nagpur (M.S.), India.
3
Asst.Prof., Dept Of Mechanical Engg., SDMP, Nagpur (M.S.), India.
4
M.E. (CAD/CAM), Dept Of Mechanical Engg., Prof.RMITR Badnera , Amravati (M.S.), India.
Abstract:
Hand lay-up process is fabrication process to manufacture of FRP products. FRP or fiberglass
corrugated roof sheet also manufactured by hand lay-up process, but some problems has been arise with this
method such that, mainly low production rate of sheets; uniform thickness not maintaining; lay-up does not
uniformly perform, resin is harmful for human. These problems can be eliminated by hand lay-up process
converted into Automatic lay-up process with providing safety environments for works. In this paper also
discussed about different composite materials of methods for manufacturing of roof sheet and other products.
Keywords: Corrugated roof sheet, Composite materials, FRP, Fiberglass, Hand lay-up, Gantry structure,
Automatic machine.
1. Introduction
Now days, the Fiber Reinforced Plastic (FRP) products are generally manufactured by the Hand Lay-
up or spray-up process. Hand Lay-up process is a simple method and economically cheap process w.r.t. other
methods of FRP product manufacturing. The paper describe about automatic lay-up method of manufacturing of
corrugated fiberglass roofing sheets, now days, manufacturing by Hand Lay-up process, this process done by
manually with the help of equipments, it consists of open mold, brush, squeeze roller. Fiberglass is the
composite material of resin and chopped fiber strand or fiber mats. This process is simple and economical for
production of FRP product, but some problems are arise from these process such that,
Production rate of corrugated fiberglass sheet is low i.e. approximately 50-60 sheets per day (i.e. 12 hr.
shift.),
Thickness of sheet is not uniform.
Lay-up process does not perform uniformly i.e. when perform lay-up of resin on mold; the amount of
resin is not taken with specific amount for lay-up on mold surface.
Resins are harmful to human.
Fiberglass strand does not uniformly sprayed on mold, therefore, strength of sheet does not uniform on
sheet.
These above problems are eliminated; Hand lay-up process is converted into Automatic Lay-up process.
1.1. What Is The Hand Lay-Up Process?
Hand Lay-up is fabrication process of FRP products (Fiber Reinforced Plastic). The FRP is composite
material of Resin and Fiberglass strand or Fiberglass mat. It involved building up layers of chopped glass or
woven glass mat impregnated with catalyzed resin around a suitable mould. The reinforcement is then rolled for
better wet-out and removing trapped air.
1.2. Steps of Hand lay-up process
Hand lay-up process is an open mold process. It is a simple process to manufacturing of FRP products
Preparing Mold:-
We take mold and removing any dust and dirt from mold. The mold material may be plaster, wood or
new fiberglass, apply soft wax, P.V.A. and buff with soft towel.
Applying Resin:-
Resin is applied on mold by the brush. The brush is move like to painting of wall.
Lay-up of Fiberglass:-
Brush is applied of resin on mold then chopped fiber glass strands spread over the resin layer.
2. Newly Developed Automatic Lay-Up Process For…
93
||Issn||2250-3005|| (Online) ||March||2013|| ||www.ijceronline.com||
Applying Resin:-
Again apply the resin layer over the glass strand layer by using brush.
Squeeze Action:-
Second layer of resin is applied then roller is move over the layers of resin-fiberglass-resin, for removing the
air between in layers. This action called squeeze action. This squeeze action also used for compact the
product.
Remold :-
Lastly the sheet is removing from mold for hardening of sheet, the left in air at room temperature. And
remold product is final of a corrugated fiber roofing sheet.We ask that authors follow some simple guidelines. In
essence, we ask you to make your paper look exactly like this document. The easiest way to do this is simply to
download the template, and replace the content with your own material.
2. Literature Review:
The main purpose of that paper, to improve the manufacturing method of corrugated fiberglass roofing
sheet. Today’s used manufacturing method of corrugated fiberglass roofing sheet of Hand Lay-up process is
converted into Automatic Lay-up process.Today’s in the market available of various types of corrugated roofing
sheets with different materials such as Steel (G.I. steel), Plastic, Composite materials etc. composite materials of
Cement fibrous, Fiber Reinforce Plastic. These different materials of sheets are manufactured by using different
manufacturing methods. Like that, for Steel corrugated roofing sheets manufactured process by using roll
forming method; for Plastic corrugated roofing sheets manufacturing process by using Extrusion method; for
Cement fibrous corrugated roofing sheets manufacturing process by using Hatschek method; for FRP corrugated
roofing sheets manufacturing by using Hand Lay-up or Spray Lay-up method.
Cement fibrous corrugated roofing sheets like to be fiberglass roofing sheets, the different between
both sheets are made from different materials. Cement fibrous sheet is in the used cement materials for
bounding the fibers. And FRP sheet is in used the resin for bounding the fiberglass. These both sheets materials
group is belong to composite materials. The fiber is used in sheet for increase the wind strength of sheet.
Different materials of sheets, so different manufacturing methods of these. Hashem Akbari, Ronnen Levinson,
and Paul Berdahl [6], they are discussed about the methods for the manufacturing of Residential Roofing
materials. Such that, shingles; Clay tiles; Concrete tiles; Metal roofing. In this paper discussed about climate of
California, the demand for cooling energy, increasing roof solar reflectance reduces energy consumption in
mechanical cooled building, and improves occupant comfort in non-conditioned buildings, with manufacturing
methods and innovative methods for increasing the solar reflectance of these roofing materials.In cement fibrous
sheets, the major components involved cement, water, silica, lime stone flour and fibers. The cement fibrous
corrugated roofing sheets manufacture by different methods, AL Moselemi [1], to provide an overview of the
different technologies that are currently in use to manufactured of cement fibrous sheets, the most popular
technology used in fiber cement manufacturing is the Hatschek process and other processes are used such as
Extrusion machine, Fourdrinier forming machine, Pour-on Technology, Wounder Board Process, Cement-
Bonded particle board, Wood wool Boards, Block and Siabs. These technologies are currently used for
manufacturing of cement sheets in factories. Hatschek process is very old method was developed in 1890’s for
production of asbestos cement product. Tony Cook [4], describes the details working mechanism about
Hatschek machine process for manufacturing of fiber cement sheets. This method is helpful for film formation
cement fibrous sheets in uniform thickness and flatness of sheet.
S. Delvasto, E.F. Toro, F. Perdomo [2], this are discussed about another technology for manufacturing of
corrugated fiber reinforced cementitious sheets using Vacuum forming technology. The machinery used in
cylinder forming process is simple; this technology appropriate for small scales of production and it is an
environmental friendly low cost appropriate technology that does not need skilled labour.Ciarlini Sergio [3], the
discussed about existing manufacturing methods and to improve the existing method for manufacturing of
corrugated cement fiber sheet. In an existing method of corrugated sheets in find it microscopic discontinuities,
formation of cracks, delaminations, breakages, these all drawback eliminated by improving and small changes in
method for producing corrugated cement sheets.Bijkerk, Bakker and Deblauwe [5], in this paper invention about
the finished product of fiber cements are protected from scuffing damage during storage, transport, handling and
fixing or mounting. Therefore, to applied spacer of hot melt adhesive to the back side of finished product and
described the manufacturing method for applying the spacer, to extend the Hatschek process which was
originally applied to the asbestos cement technology.Above manufacturing methods and technology of to
produce corrugated fiber cement sheets, these manufacturing technologies will be helping for to introduce the
Automatic technology for manufacturing corrugated fiberglass roofing sheets.
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3. Solution On Existing Systems Problems
In hand lay-up method arises above problems these problems are overcome by conversion of manually
operated hand lay-up process into automatic lay-up process i.e. all operation steps are performed by the
automatically using dedicated system.
Describe automatic systems are related to the existing system in following.
[1] Preparing Mold:-
[2] In existing system, removing of dust by soft cloth and apply wax and PVA by manually using soft towel.
[3] In Automatic system, already die used dust free and PVA agent apply by spraying system on mold.
[4] Applying Resin :-
[5] In existing system, resin apply on mold with help of brush, the brush is move like to paint.
[6] In Automatic system, resins apply by spray system or dumping of resin in mold.
[7] Lay-up of fiberglass :-
[8] In existing system, chopped fiber spread by hand on layer of resin.
[9] In Automatic system, chopped fiber spread with help of fiber spread unit.
[10] Again applying Resin:-
[11] In existing system, second layer of resin applied on fiber with the help of brush. It is same like to first
layer of resin.
[12] In Automatic system, second layer of resin applied by spray system or dumping of resin in mold.
[13] Squeeze Action:-
[14] In existing system, squeezing action performs by roller applying hand force and move more layer of resin
– fiber – resin.
[15] In Automatic system, squeezing actions perform by automatic roller by self weight of roller for
compacting and air releasing between layer of resin and fiber.
[16] Remold:-
[17] In existing system, after hardening of sheet, the remold by manually.
[18] In Automatic system, the remold operation by using automatic ejection system to remove sheet from
mold.
3.1. Required components for Automatic Lay-up System:-
a. PVA Spray Unit.
b. Resin Spray Unit.
c. Fiber Spread Unit.
d. Roller Unit for squeezing action.
e. Ejection System.
4. Structure Of Automatic Machine
Structure is basic part of every machine for holding of all unit of any system. In Automatic lay-up
system used gantry type of structure used for holding and performing of operations by separates units.
4.1 Construction of Structure:-
It consists of base table, columns, and guide ways rod. The base table is place on floor and four columns are
mounted on table, at near about end corner of table. The column used for support to the guide ways rod shown
in fig.1. These guide way rod used for the travelling the units on mold for performing operations.
Figure 1 Basic Structure of Automatic Lay-up Process
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5. Proposed System For Automatic Lay-Up Process
Three systems are proposed for Automatic lay-up process in following.
5.1. Proposed System “A”
Construction & Working of Machine: -
This system used in gantry type of structure it is shown in fig.2, it consists of base table, column, resin
spray unit, PVA spray unit, flap system, fiber glass spread unit, roller unit, and mold. These arrangements show
in fig.2, Base table mount on angle type of structure. Four columns are mounted on base table for supporting to
guide ways rod. On this guide ways rod mounted spray units, flap system, fiber spread unit, roller unit for to
travelling on mold for performing of operation simultaneously, with the help of motion mechanisms applying
individual external sources.In this system three guide ways are used for holding units. On one guide way for
fiber glass spread unit. Second guide way for flap and squeeze unit and third guide way for spraying unit.
Working of Machine:-
In this system, firstly applying the PVA agent on mold by using spray unit, these spray unit having two
nozzle one for PVA and other for Resin. The spray unit move on y-direction of guide way for dumping of PVA
in mold like to paste, now, flap system is activated for PVA apply on mold uniformly. This flap taken initial
position after completion of laying process of PVA. Whenever flap activated before that nozzle tip is rotate to
900
at shown in fig.2, for avoiding of accident, then flap move for performs of work. Now nozzle position is
taken original after flap comes to initial position. The nozzle is ready for dumping the resin in mold when the
spray unit moves to initial position i.e. backward moment. Again nozzle tip is rotate at 900
. Flap is ready for
perform the lay –up operation on mold. After completion of lay-up of resin operation the flap comes to initial
position. Now, fiber glass spread by spread unit this units are place to other end of table i.e. left end it is shown
in fig.2, after completion of fiber spread operation these comes to origin position. Next step is again activated
resin nozzle for dumping of resin in mold same to move of spray unit in y-direction but now the completion of
spraying of resin the unit comes to origin position, and taken rotate at 900
. Flap is move for performing of lay-
up operation on fiber glass layer. Now, flap stop at the other end. The next step is squeezing operation by using
roller units. The roller units move on layer of resin-fiber-resin for releasing of air and compacting of product.
This roller unit two times of performing squeezing action, one forward direction and second is backward
direction. Lastly roller unit comes to origin position as well as flap also comes to origin position, after hardening
of sheet remove from mold. This cycle is repeated for manufacturing of sheets.
Figure 2. First Proposed System for Automatic Lay-up Process
5.2. Proposed System “B”
Construction & Working of Machine: -
In Second proposed system construction is same near about to first proposed system. The little change
is spray unit motion and number of nozzles for dumping of resin in mold. In this spray unit move in vertical
direction like up and down for dumping of resin in mold. It is shown in fig. the PVA nozzles and Resin nozzles
are arrange to opposite side its shown in fig.3, first pair of PVA nozzle dump PVA in mold. Before that spray
unit rotate 900
for avoiding accident and move the flap used for performing uniform lay-up operation. After that
completion of lay-up for PVA. Now, spray unit rotate next at 900
and ready for dumping of resin in mold. After
dumping of resin operation the spray unit again rotates at 900
, and flap activated for lay-up operation. After that
the spray unit moves upward direction in vertically, place origin position of spray unit. Now, fiber glass spread
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unit activated for spreading the fiber on first layer of resin, completion of fiber spreading operation, again
dumping the resin in mold and lay-up by flap system. After that roller unit is activated for performing squeezing
action. This cycle is repeated for manufacturing of sheets.In this system, two guide ways are used for holding
and travelling of units for performing lay-up operation for manufacturing of sheets. One guide way rod is used
for fiber spread unit and second guide way rod for flap system and roller system shown in fig.3.
Figure 3. Second Proposed System for Automatic Lay-up Process
5.3. Proposed System “C”
Construction & Working of Machine: -
In third proposed system construction same like to above two systems. But in this system used only one
guide way rod for holding and travelling of units for performing operation steps for manufacturing of sheets. On
these guide way rod two spray units, one fiber spread unit, one rolling units are mounted. The two spray unit and
fiber spread unit are place at right end of table and roller unit is placed at left end of table shown in fig.4.
Working of these systems, firstly spray PVA on mold by spray unit, the moment of unit right to left direction
and stop the unit at left end of table, after that resin spray move for spraying on mold in same direction of
previous unit and stop there. Now, fiber glass spread unit ready for spreading of fiber on layer of resin, these
unit move from right to left direction, and return to original position. Again spray the resin on layer of fiber
glass by resin unit whenever these unit move to backward direction and takes the origin position. Now, PVA
spray unit return to origin position but these time no any operation perform i.e. ideally move. After roller unit
activated for performing of squeezing action for releasing of air in between layer of resin-fiber-resin, also
compacting of product uniformly. These roller units perform squeezing action twice, and reset the origin
position. This cycle repeated for manufacturing of sheets.
Figure 4. Third Proposed System for Automatic Lay-up Process
6. Conclusion
It is possible to existing lay-up process converted into Automatic Lay-up Process. Therefore, those
problems are arise in existing lay-up process can be avoided with increasing the production rate of sheets.There,
three systems are proposed for automatic lay-up system, so, can be possible to adopt these one from above
system and also available more options for converting Automatic Lay-up system.If adopt the automatic lay-up
process for manufacturing of FRP sheets, therefore achieving the uniform thickness of sheet as well as to
providing safety environments to human. Also increasing the production rate with economical.
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References
[1] Moslemi, A. L., 2008.Technology & Market Consideration for Fiber Cement Composites. Int. Inorganic-
Bonded Fiber Composite Conference. Spain.
[2] Delvasto, S., Toro, E.F., and Perdommo, F. 2010. An appropriate Vacuumed technology for
manufacturing of corrugated figue fiber reinforced Cementitious sheets. Construction and Building
Material, ELSEVIER Journal, 187-192.
[3] Ciarlini Sergio. 1998. Method for manufacturing corrugated sheets made of Fibrous cements. European
Patent Office.
[4] Tony Cooke. Formation of Films on Hatschek machine. Building Materials and Technology pvt. Ltd.
Australia.
[5] Bijkerk, Bakker, and Deblauwe. 2009. Finished Product of fiber cement and method of manufacturing
thereof. European Patent Office.
[6] Hashem Akbari, Ronnen Levinson, and Paul Berdahl. 2003. A Review of Methods for the Manufacture
of Residential Roofing Surfaces. Lawrence Berkeley National Laboratory Berkeley.