The document describes the design, fabrication, and testing of a copper matrix hybrid composite material. Key points:
1. A powder compaction die was designed and fabricated from D2 tool steel using wire-cut EDM for compacting copper, TiC, graphite, and SiC powders.
2. Samples were prepared with 3, 6, and 9% SiC by weight and sintered at 850°C.
3. Hardness testing showed that hardness increased with higher SiC content. The 6% SiC composition exhibited the highest compressive strength.
4. The composite material could have applications in components requiring high conductivity, strength, and wear resistance such as bushes, bear
IRJET - Dissimilar Welding of Alloy Steel and Stainless Steel by using Va...IRJET Journal
The document discusses dissimilar welding of alloy steel and stainless steel using cryogenic treatment. It first provides background on dissimilar welding and challenges associated with joining different metals. It then describes the materials used (alloy steel SS335 G12 and stainless steel SS 316), cryogenic equipment, and testing processes for hardness, impact resistance, and tensile strength. Results showed that cryogenic treatment improved mechanical properties like hardness, yield strength, and tensile strength compared to untreated specimens. The conclusions state that cryogenic treatment can further change metal structures and properties, improve mechanics, and reduce production costs.
A Study on Carbon Nanoparticle Reinforced Aluminium NanocompositeIRJET Journal
This study investigated carbon nanoparticle reinforced aluminium nanocomposites created through stir casting. Composites were made with 2%, 3%, and 5% carbon nanoparticles in an aluminium matrix. Mechanical properties including tensile strength, elongation, and hardness increased with higher carbon nanoparticle content. Microstructural analysis using SEM showed nanoparticles were uniformly distributed and occupied grain boundaries. Chemical analysis identified elements in the aluminium alloy matrix. The study demonstrated carbon nanoparticles can improve the mechanical properties of aluminium composites.
IRJET- A Study on Mechanical Properties of Al 7075 Reinforced with TiC Pa...IRJET Journal
- Researchers produced aluminum metal matrix composites with titanium carbide particulate reinforcements using stir casting. Reinforcements of 3%, 5%, 7%, and 9% weight were tested.
- As reinforcement weight percentage increased, tensile strength and yield strength increased, reaching a maximum at 7% reinforcement. Elongation decreased with higher reinforcement.
- Hardness increased with higher reinforcement weight percentage, with the 7% composite exhibiting the best mechanical properties overall. The addition of titanium carbide improved properties through stress transfer from the aluminum matrix.
Comparative study of tensile properties of forged hybrid alloys of aa6061 si...eSAT Journals
Abstract Hybrid materials are important engineering materials due to their outstanding mechanical properties. AA6061 and silicon carbide (SiC) particles and Graphite (Gr) particles were synthesized used stir casting method, which can be used in aircraft and automobile industries to improve the strength and reduce the weight of the components. The major physical parameters like composition ratio, total particle content in%, particle size combination are playing an important role in deciding the mechanical properties. Hot forging involving the shaping of metal to improve strength. Tensile tests were conducted on standard specimens machined from the hot forged sections. The tension test is the most common test for determining the mechanical behavior of materials. The results show that, the reinforcement of the metal matrix with SiC and graphite particulates up to a volume fraction of 10% Keywords: AA-Aluminium alloys, SiC-silicon carbide, Gr-Graphite, AMC-Aluminium matrix composite
IRJET- Experimental Investigation and Optimization of Wear Characteristics of...IRJET Journal
The document experimentally investigates the optimization of wear characteristics of brass metal matrix composite reinforced with molybdenum disulphide using Taguchi technique. Brass composite samples with 2%, 4%, and 6% molybdenum disulphide by weight were fabricated using stir casting. Pin-on-disc tests were conducted to analyze the wear rate while varying percentage reinforcement, load, temperature, and sliding velocity. Taguchi design of experiments was used to determine the optimal levels of parameters that minimize wear rate. Analysis of variance found that applied load had the greatest influence on wear rate, followed by percentage reinforcement and temperature. A regression model was developed that correlates the input parameters to wear rate.
Reduction of Splatters in Intercell Welding of a Lead Acid BatteryIRJET Journal
This document discusses reducing splatters in intercell welding of lead acid batteries. Splatters are unwanted metal particles expelled during resistance welding that reduce quality. The researcher analyzed the problem using tools like fishbone diagrams and identified key causes as insufficient electrode contact area, tip gap variation, and flag misalignment. Their proposed solutions were increasing the electrode diameter to improve contact area, using a lock nut to control tip gap, and adding ribs to properly align flags. Testing showed these solutions reduced monthly splatter rates from over 4% to under 0.3%, improving productivity, quality, and savings.
This document discusses the finite element analysis and optimization of a screw compressor housing. The original design analysis found a maximum deformation of 0.17mm and principal stress of 104.3MPa, within design limits. Topology optimization suggested areas where material could be reduced up to 5% of the weight. The optimized design was created and analyzed, showing a weight reduction from 24.6kg to 23.8kg while stresses and deformations remained within design criteria.
Multiresponse optimization of surface grinding operation of en19 alloy steel ...IAEME Publication
This document describes an experimental study that used grey relational analysis to optimize surface grinding parameters for EN19 alloy steel using water-based nanofluids. The study considered nanofluid type (Al2O3 and CuO), nanofluid concentration (2-6%), depth of cut (5-10um), and feed rate (1000-2500mm/min) as process parameters. Multiple responses including surface roughness, temperature, grinding wheel wear, and material removal rate were measured. Grey relational analysis was used to convert the multi-response optimization into a single response problem to simplify the optimization. Analysis of variance was conducted to determine significant process parameters affecting the grey relational grade. The optimal levels of parameters were selected and a confirmation
IRJET - Dissimilar Welding of Alloy Steel and Stainless Steel by using Va...IRJET Journal
The document discusses dissimilar welding of alloy steel and stainless steel using cryogenic treatment. It first provides background on dissimilar welding and challenges associated with joining different metals. It then describes the materials used (alloy steel SS335 G12 and stainless steel SS 316), cryogenic equipment, and testing processes for hardness, impact resistance, and tensile strength. Results showed that cryogenic treatment improved mechanical properties like hardness, yield strength, and tensile strength compared to untreated specimens. The conclusions state that cryogenic treatment can further change metal structures and properties, improve mechanics, and reduce production costs.
A Study on Carbon Nanoparticle Reinforced Aluminium NanocompositeIRJET Journal
This study investigated carbon nanoparticle reinforced aluminium nanocomposites created through stir casting. Composites were made with 2%, 3%, and 5% carbon nanoparticles in an aluminium matrix. Mechanical properties including tensile strength, elongation, and hardness increased with higher carbon nanoparticle content. Microstructural analysis using SEM showed nanoparticles were uniformly distributed and occupied grain boundaries. Chemical analysis identified elements in the aluminium alloy matrix. The study demonstrated carbon nanoparticles can improve the mechanical properties of aluminium composites.
IRJET- A Study on Mechanical Properties of Al 7075 Reinforced with TiC Pa...IRJET Journal
- Researchers produced aluminum metal matrix composites with titanium carbide particulate reinforcements using stir casting. Reinforcements of 3%, 5%, 7%, and 9% weight were tested.
- As reinforcement weight percentage increased, tensile strength and yield strength increased, reaching a maximum at 7% reinforcement. Elongation decreased with higher reinforcement.
- Hardness increased with higher reinforcement weight percentage, with the 7% composite exhibiting the best mechanical properties overall. The addition of titanium carbide improved properties through stress transfer from the aluminum matrix.
Comparative study of tensile properties of forged hybrid alloys of aa6061 si...eSAT Journals
Abstract Hybrid materials are important engineering materials due to their outstanding mechanical properties. AA6061 and silicon carbide (SiC) particles and Graphite (Gr) particles were synthesized used stir casting method, which can be used in aircraft and automobile industries to improve the strength and reduce the weight of the components. The major physical parameters like composition ratio, total particle content in%, particle size combination are playing an important role in deciding the mechanical properties. Hot forging involving the shaping of metal to improve strength. Tensile tests were conducted on standard specimens machined from the hot forged sections. The tension test is the most common test for determining the mechanical behavior of materials. The results show that, the reinforcement of the metal matrix with SiC and graphite particulates up to a volume fraction of 10% Keywords: AA-Aluminium alloys, SiC-silicon carbide, Gr-Graphite, AMC-Aluminium matrix composite
IRJET- Experimental Investigation and Optimization of Wear Characteristics of...IRJET Journal
The document experimentally investigates the optimization of wear characteristics of brass metal matrix composite reinforced with molybdenum disulphide using Taguchi technique. Brass composite samples with 2%, 4%, and 6% molybdenum disulphide by weight were fabricated using stir casting. Pin-on-disc tests were conducted to analyze the wear rate while varying percentage reinforcement, load, temperature, and sliding velocity. Taguchi design of experiments was used to determine the optimal levels of parameters that minimize wear rate. Analysis of variance found that applied load had the greatest influence on wear rate, followed by percentage reinforcement and temperature. A regression model was developed that correlates the input parameters to wear rate.
Reduction of Splatters in Intercell Welding of a Lead Acid BatteryIRJET Journal
This document discusses reducing splatters in intercell welding of lead acid batteries. Splatters are unwanted metal particles expelled during resistance welding that reduce quality. The researcher analyzed the problem using tools like fishbone diagrams and identified key causes as insufficient electrode contact area, tip gap variation, and flag misalignment. Their proposed solutions were increasing the electrode diameter to improve contact area, using a lock nut to control tip gap, and adding ribs to properly align flags. Testing showed these solutions reduced monthly splatter rates from over 4% to under 0.3%, improving productivity, quality, and savings.
This document discusses the finite element analysis and optimization of a screw compressor housing. The original design analysis found a maximum deformation of 0.17mm and principal stress of 104.3MPa, within design limits. Topology optimization suggested areas where material could be reduced up to 5% of the weight. The optimized design was created and analyzed, showing a weight reduction from 24.6kg to 23.8kg while stresses and deformations remained within design criteria.
Multiresponse optimization of surface grinding operation of en19 alloy steel ...IAEME Publication
This document describes an experimental study that used grey relational analysis to optimize surface grinding parameters for EN19 alloy steel using water-based nanofluids. The study considered nanofluid type (Al2O3 and CuO), nanofluid concentration (2-6%), depth of cut (5-10um), and feed rate (1000-2500mm/min) as process parameters. Multiple responses including surface roughness, temperature, grinding wheel wear, and material removal rate were measured. Grey relational analysis was used to convert the multi-response optimization into a single response problem to simplify the optimization. Analysis of variance was conducted to determine significant process parameters affecting the grey relational grade. The optimal levels of parameters were selected and a confirmation
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
Preliminary study of on cladding process on gray cast iron substrateeSAT Journals
This document discusses a preliminary study on the cladding process for gray cast iron substrates. It provides background information on cladding, including that it is a deposition process used to improve substrate properties by depositing filler material in layers. Gas metal arc welding is discussed as a common cladding method. Process parameters for GMAW cladding are described, including current, voltage, and travel speed. Challenges of cladding gray cast iron due to its brittle microstructure are addressed. Nickel-based filler materials are proposed to address these challenges by preventing cracking during thermal cycling.
IRJET- Development of Al-Sic MMC by Bottom Pouring Stir Casting and Parametri...IRJET Journal
This document summarizes research on developing an aluminum-silicon carbide metal matrix composite (Al-SiC MMC) through bottom pouring stir casting. Al-SiC MMC samples were fabricated with 10%, 15%, and 20% weight fractions of silicon carbide particles. Hardness testing found the 10% composite had the highest hardness. Microstructure analysis of the 15% composite found uneven particle distribution. The document also reviews electrical discharge machining (EDM) as a method to machine such MMCs and discusses how machining parameters like current and pulse time impact the material removal rate, tool wear rate, and surface roughness during EDM of MMCs.
IRJET- Studies on Drilling Characteristics of Heat Treated Aluminium A356/Sil...IRJET Journal
The document discusses a study that fabricated aluminum metal matrix composites reinforced with 0%, 10%, and 20% silicon carbide particles using stir casting. The composites were heat treated. Drilling experiments were conducted on the composites using coated carbide tools. Taguchi design of experiments was used to analyze the effects of drilling parameters like speed, feed, point angle, and silicon carbide weight percentage on surface roughness and thrust force. Analysis of variance was employed to determine the most influential parameters. The results showed that speed, feed, point angle, and reinforcement content significantly affected the drilling process.
Flank wear measurement of al based metal matrix composite materials (mmc)Alexander Decker
This document discusses a study that measured flank wear on different cutting tool materials when machining an aluminum-silicon metal matrix composite (MMC) containing 5% silicon carbide particulate (SiCp) by volume. A range of cutting speeds and feed rates were used. The best performance was achieved using a titanium-coated carbide insert, which experienced lower flank wear than uncoated or aluminum oxide-coated carbide tools as the cutting speed increased. In general, higher cutting speeds led to faster tool wear across all tool materials tested.
of flux cored arc welding process parameters ond duplex stainless steel clad q...A X.S
This document summarizes an experimental study that analyzed the effects of flux cored arc welding (FCAW) process parameters on clad quality when duplex stainless steel is used to clad low carbon structural steel plates. Experiments were conducted using a central composite design with four welding parameters (current, speed, nozzle distance, angle) and responses (bead width, penetration, reinforcement, dilution). Mathematical models were developed to relate the parameters to the responses using multiple regression analysis. The models can help select welding parameters to achieve desired clad quality.
Comparative Analysis of Tool Tip Temperature using DEFORM2D and AdvantEdgeIRJET Journal
This document compares tool tip temperature predictions using two finite element software packages, DEFORM2D and AdvantEdge, during orthogonal cutting simulations of aluminum alloy 6061. The simulations were run with cutting speed and feed held constant while tool nose radius was varied from 0.04mm to 0.055mm. Both software packages predicted that maximum tool tip temperature occurred with the smallest nose radius of 0.04mm, and minimum temperature occurred near a nose radius of 0.05mm. Specifically, DEFORM2D predicted a 0.6% lower maximum temperature with a 0.055mm nose radius, while AdvantEdge predicted a 3% lower maximum temperature also with a 0.055mm nose radius. Therefore, both software packages
IRJET- Performance Enhancement of Cutting Tools by using Cryogenic TreatmentsIRJET Journal
This document summarizes a study on improving the performance of micro cutting tools through cryogenic treatment. Cryogenic treatment involves submerging tools in liquid nitrogen or carbon dioxide to enhance hardness. The study examines how cryogenic treatment of tungsten carbide tools at different temperatures and soaking periods affects cutting forces and surface roughness when grinding titanium alloy at the micro-scale. Results show that deeper cryogenic treatment (-196°C) for longer durations (24 hours) leads to lower cutting forces, better surface finish, and increased tool life compared to untreated tools due to improved hardness from precipitation of eta carbide in the tool material. Therefore, cryogenic treatment is concluded to enhance the mechanical properties and performance of micro cutting tools.
IRJET- To Study Experimental Investigation & Wear Analysis Effects of Composi...IRJET Journal
This document summarizes an experimental investigation into the effects of adding MoS2 composite material on the wear properties of an Al 6082 aluminum alloy. Samples were produced with 2.5% and 5% MoS2 additions via stir casting. Pin-on-disc testing was conducted under varying load, speed, temperature and sliding distance conditions. The results show that adding MoS2 reduced the wear rate of the aluminum composite compared to the unreinforced alloy. The composite provides improved tribological properties for applications that require light weight and corrosion resistance such as in aerospace and automotive components.
IRJET- Thermal Analysis and Optimisation of Ceramic Heating Pads for Small Tu...IRJET Journal
This document discusses the thermal analysis and optimization of ceramic heating pads used for stress relieving small tubes. Ceramic heating pads contain nickel-chrome wire and ceramic beads for producing heat up to 1000°C. When used on small tubes, the flat ceramic beads do not allow for complete wrapping. Changing the beads to a curved shape allows for uniform heat transfer and easier wrapping on tubes as small as 30-100mm in diameter. Thermal analysis shows the curved beads can produce temperatures of 1200°C internally and 950°C externally, achieving the required stress relieving temperatures in a more efficient manner.
IRJET- Multi-Objective Optimization of WEDM Process Parameters of Ti-Ni S...IRJET Journal
The document discusses optimization of wire electrical discharge machining (WEDM) process parameters for machining titanium-nickel (Ti-Ni) shape memory alloy for biomedical applications. Eighteen experiments were conducted using Taguchi's L18 orthogonal array to evaluate the effects of five process parameters (pulse on time, pulse off time, servo voltage, wire feed, and wire tension) on material removal rate, surface roughness, and dimensional deviation as response variables. Grey relational analysis was used to determine the optimal parameter set that offers the maximum material removal rate and minimum surface roughness and dimensional deviation. Pulse on time was found to be the most influential parameter based on analysis of variance.
IRJET-Finite Element Analysis of CFRP Composite Material Machining: A ReviewIRJET Journal
This document provides a review of finite element analysis techniques used to model machining of carbon fiber reinforced polymer (CFRP) composite materials. It discusses that finite element analysis can be used to simulate the machining process and evaluate factors that affect machining of CFRP laminates. The document reviews different finite element modeling techniques used in previous studies, including equivalent homogeneous material models and micromechanical models. It also discusses modeling considerations like meshing, material properties definitions, and boundary conditions. The key findings from several previous finite element studies on drilling and milling of CFRP composites are summarized. Overall, the document aims to provide an overview of current trends in finite element modeling of CFRP composite machining.
IRJET- Analysis and Design of Multi - Storey Building Under Load CombinationIRJET Journal
This document analyzes and designs a 5-storey reinforced concrete building under various load combinations. It describes modeling the building and calculating loads like dead, live, seismic, wind and snow loads. Load combinations are defined according to Indian codes. The building is analyzed using the substitute frame method to determine member forces from different load cases. Slabs and columns are then designed based on the critical load combinations using limit state design. The maximum bending moment and shear force from the analysis are used for beam design. The building is thus designed to withstand seismic and snow loads for the very high seismic zone where it is located.
IRJET- Synthesis and Comparative Machining Characterization of A356 - Graphit...IRJET Journal
This document summarizes a study that compared the machinability of three aluminum matrix composites: A356 reinforced with 5% graphite powder, 5% SiC powder, and 5% calcium silicate powder. Specimens of the three composites were produced using stir casting and tested on a lathe at various cutting speeds and depths of cut. Cutting forces, surface roughness, material removal rate, and power consumption were measured and compared. The results showed that the A356-graphite composite exhibited better machining characteristics than the other two composites.
IRJET- Experimental Investigation of Wear Rate using Alternating Material for...IRJET Journal
This document experimentally investigates wear rates of materials for bushings used in food mixers. The existing bushing material is gunmetal, which has a high copper content. Testing on a pin-on-disc tribometer shows the wear rate of gunmetal at various loads and speeds. To reduce wear, a composite of brass and 5% molybdenum disulfide is proposed as an alternative material. Samples of the proposed material are fabricated via powder metallurgy and tested under the same conditions as the existing gunmetal. Test results show the proposed composite has a lower wear rate than the existing gunmetal bushing material across all loads and speeds tested.
Study on Microstructure and machining characteristics of 7% B4Cp reinforced i...IJTET Journal
The document discusses a study on the microstructure and machining characteristics of an aluminum 6061 metal matrix composite reinforced with 7% boron carbide particles produced by stir casting. The microstructure of the composite showed a homogeneous distribution of boron carbide particles in the aluminum matrix. Tests were conducted to analyze the effects of varying cutting speed, feed rate, and depth of cut on the cutting forces and surface roughness when machining the aluminum-boron carbide composite.
Studies on Al8081-B4C Metal Matrix Composites Fabricated by Stir Casting MethodIJMER
Aluminium MMCs are preferred in the fields of aerospace, military, automotive, marine and
in many other domestic applications. In the present work, an attempt has been made to develop and
study the, Mechanical properties of Al-8081/B4C reinforced aluminium metal matrix composites. The
composite was prepared by using Liquid Metallurgy Route (Stir Casting Technique). Liquid state has
some important advantages such as better matrix particle bonding, easier control of matrix structure,
simplicity, low cost of processing, nearer to net shape and wide selection of material. Al-8081 alloy
was taken as the base matrix to which B4C particulates are used as reinforcements. Al8081-B4C
composites were prepared by varying weight percentage of B4C i.e 0 to 6 %, in steps of two. The
objective is to study the effect of B4C particulates on mechanical properties such as ultimate tensile
strength, yield strength and hardness of Al8081 alloy composites. The results of this study revealed
that, as the B4C content was increased, there were significant increases in the ultimate tensile strength,
yield strength and hardness in the composites as compared to the base matrix
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.
IRJET- Study and Characterization of Aluminium 7075 Hybrid Composites Rei...IRJET Journal
This document summarizes a study that characterized aluminum 7075 hybrid composites reinforced with boron carbide and tungsten carbide particles. The composites were fabricated using stir casting by varying the boron carbide content from 2-6wt% and keeping tungsten carbide constant at 4wt%. Testing showed that hardness increased with higher boron carbide content, while density remained similar to aluminum 7075. Wear resistance also improved with increased hardness. Microstructural analysis revealed a more uniform distribution of reinforcements at higher boron carbide levels. Overall, the composites demonstrated enhanced mechanical properties for applications requiring high strength and wear resistance.
Studies on jet penetration and kerf width at various operating pressure in ma...eSAT Journals
Abstract Abrasive Water Jet (AWJ) machining is one of the non-traditional machining method popular method for machining of hard, heat sensitive and brittle materials. The present work attempts to investigate the effect of operating pressure on depth of penetration and kerf characteristics generated while machining of D2 heat treated steel. It is found that increase in operating pressure increases the depth of penetration and decreases the surface taper on the work-piece. Keywords: Kerf width, Depth of cut, Operating pressure, AWJ Machining
Ceramic Coating on Piston Top in IC Engine to Reduce Thermal LossesIRJET Journal
The document discusses applying ceramic coatings to piston tops in internal combustion engines to reduce thermal losses. A simulation study was conducted using ANSYS software to analyze the impact of thermal barrier coatings (TBCs) made of magnesia stabilized zirconia and yttria stabilized zirconia on piston performance. The results showed that pistons with 0.6mm coatings of these ceramics performed better than an uncoated piston under all operating conditions, with lower temperatures and stresses. Applying a bond coat of NiCrAl between the piston and ceramic coating can further reduce thermal stresses and cracking.
IRJET- Improving the Performance of M42 Twist Drill ToolIRJET Journal
This document summarizes an experiment to optimize the heat treatment process and improve the performance of M42 twist drill tools. The experiment tested different materials, heat treatment cycles, spindle speeds, and point angles. Testing found that M42 material exhibited the lowest wear and temperature, making it the best material. Further testing determined that a point angle of 118 degrees and spindle speed of 750 RPM provided the best performance. In total, the experiment aimed to optimize the drill tool design and heat treatment process to improve tool life, hardness, and reduce costs.
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
Preliminary study of on cladding process on gray cast iron substrateeSAT Journals
This document discusses a preliminary study on the cladding process for gray cast iron substrates. It provides background information on cladding, including that it is a deposition process used to improve substrate properties by depositing filler material in layers. Gas metal arc welding is discussed as a common cladding method. Process parameters for GMAW cladding are described, including current, voltage, and travel speed. Challenges of cladding gray cast iron due to its brittle microstructure are addressed. Nickel-based filler materials are proposed to address these challenges by preventing cracking during thermal cycling.
IRJET- Development of Al-Sic MMC by Bottom Pouring Stir Casting and Parametri...IRJET Journal
This document summarizes research on developing an aluminum-silicon carbide metal matrix composite (Al-SiC MMC) through bottom pouring stir casting. Al-SiC MMC samples were fabricated with 10%, 15%, and 20% weight fractions of silicon carbide particles. Hardness testing found the 10% composite had the highest hardness. Microstructure analysis of the 15% composite found uneven particle distribution. The document also reviews electrical discharge machining (EDM) as a method to machine such MMCs and discusses how machining parameters like current and pulse time impact the material removal rate, tool wear rate, and surface roughness during EDM of MMCs.
IRJET- Studies on Drilling Characteristics of Heat Treated Aluminium A356/Sil...IRJET Journal
The document discusses a study that fabricated aluminum metal matrix composites reinforced with 0%, 10%, and 20% silicon carbide particles using stir casting. The composites were heat treated. Drilling experiments were conducted on the composites using coated carbide tools. Taguchi design of experiments was used to analyze the effects of drilling parameters like speed, feed, point angle, and silicon carbide weight percentage on surface roughness and thrust force. Analysis of variance was employed to determine the most influential parameters. The results showed that speed, feed, point angle, and reinforcement content significantly affected the drilling process.
Flank wear measurement of al based metal matrix composite materials (mmc)Alexander Decker
This document discusses a study that measured flank wear on different cutting tool materials when machining an aluminum-silicon metal matrix composite (MMC) containing 5% silicon carbide particulate (SiCp) by volume. A range of cutting speeds and feed rates were used. The best performance was achieved using a titanium-coated carbide insert, which experienced lower flank wear than uncoated or aluminum oxide-coated carbide tools as the cutting speed increased. In general, higher cutting speeds led to faster tool wear across all tool materials tested.
of flux cored arc welding process parameters ond duplex stainless steel clad q...A X.S
This document summarizes an experimental study that analyzed the effects of flux cored arc welding (FCAW) process parameters on clad quality when duplex stainless steel is used to clad low carbon structural steel plates. Experiments were conducted using a central composite design with four welding parameters (current, speed, nozzle distance, angle) and responses (bead width, penetration, reinforcement, dilution). Mathematical models were developed to relate the parameters to the responses using multiple regression analysis. The models can help select welding parameters to achieve desired clad quality.
Comparative Analysis of Tool Tip Temperature using DEFORM2D and AdvantEdgeIRJET Journal
This document compares tool tip temperature predictions using two finite element software packages, DEFORM2D and AdvantEdge, during orthogonal cutting simulations of aluminum alloy 6061. The simulations were run with cutting speed and feed held constant while tool nose radius was varied from 0.04mm to 0.055mm. Both software packages predicted that maximum tool tip temperature occurred with the smallest nose radius of 0.04mm, and minimum temperature occurred near a nose radius of 0.05mm. Specifically, DEFORM2D predicted a 0.6% lower maximum temperature with a 0.055mm nose radius, while AdvantEdge predicted a 3% lower maximum temperature also with a 0.055mm nose radius. Therefore, both software packages
IRJET- Performance Enhancement of Cutting Tools by using Cryogenic TreatmentsIRJET Journal
This document summarizes a study on improving the performance of micro cutting tools through cryogenic treatment. Cryogenic treatment involves submerging tools in liquid nitrogen or carbon dioxide to enhance hardness. The study examines how cryogenic treatment of tungsten carbide tools at different temperatures and soaking periods affects cutting forces and surface roughness when grinding titanium alloy at the micro-scale. Results show that deeper cryogenic treatment (-196°C) for longer durations (24 hours) leads to lower cutting forces, better surface finish, and increased tool life compared to untreated tools due to improved hardness from precipitation of eta carbide in the tool material. Therefore, cryogenic treatment is concluded to enhance the mechanical properties and performance of micro cutting tools.
IRJET- To Study Experimental Investigation & Wear Analysis Effects of Composi...IRJET Journal
This document summarizes an experimental investigation into the effects of adding MoS2 composite material on the wear properties of an Al 6082 aluminum alloy. Samples were produced with 2.5% and 5% MoS2 additions via stir casting. Pin-on-disc testing was conducted under varying load, speed, temperature and sliding distance conditions. The results show that adding MoS2 reduced the wear rate of the aluminum composite compared to the unreinforced alloy. The composite provides improved tribological properties for applications that require light weight and corrosion resistance such as in aerospace and automotive components.
IRJET- Thermal Analysis and Optimisation of Ceramic Heating Pads for Small Tu...IRJET Journal
This document discusses the thermal analysis and optimization of ceramic heating pads used for stress relieving small tubes. Ceramic heating pads contain nickel-chrome wire and ceramic beads for producing heat up to 1000°C. When used on small tubes, the flat ceramic beads do not allow for complete wrapping. Changing the beads to a curved shape allows for uniform heat transfer and easier wrapping on tubes as small as 30-100mm in diameter. Thermal analysis shows the curved beads can produce temperatures of 1200°C internally and 950°C externally, achieving the required stress relieving temperatures in a more efficient manner.
IRJET- Multi-Objective Optimization of WEDM Process Parameters of Ti-Ni S...IRJET Journal
The document discusses optimization of wire electrical discharge machining (WEDM) process parameters for machining titanium-nickel (Ti-Ni) shape memory alloy for biomedical applications. Eighteen experiments were conducted using Taguchi's L18 orthogonal array to evaluate the effects of five process parameters (pulse on time, pulse off time, servo voltage, wire feed, and wire tension) on material removal rate, surface roughness, and dimensional deviation as response variables. Grey relational analysis was used to determine the optimal parameter set that offers the maximum material removal rate and minimum surface roughness and dimensional deviation. Pulse on time was found to be the most influential parameter based on analysis of variance.
IRJET-Finite Element Analysis of CFRP Composite Material Machining: A ReviewIRJET Journal
This document provides a review of finite element analysis techniques used to model machining of carbon fiber reinforced polymer (CFRP) composite materials. It discusses that finite element analysis can be used to simulate the machining process and evaluate factors that affect machining of CFRP laminates. The document reviews different finite element modeling techniques used in previous studies, including equivalent homogeneous material models and micromechanical models. It also discusses modeling considerations like meshing, material properties definitions, and boundary conditions. The key findings from several previous finite element studies on drilling and milling of CFRP composites are summarized. Overall, the document aims to provide an overview of current trends in finite element modeling of CFRP composite machining.
IRJET- Analysis and Design of Multi - Storey Building Under Load CombinationIRJET Journal
This document analyzes and designs a 5-storey reinforced concrete building under various load combinations. It describes modeling the building and calculating loads like dead, live, seismic, wind and snow loads. Load combinations are defined according to Indian codes. The building is analyzed using the substitute frame method to determine member forces from different load cases. Slabs and columns are then designed based on the critical load combinations using limit state design. The maximum bending moment and shear force from the analysis are used for beam design. The building is thus designed to withstand seismic and snow loads for the very high seismic zone where it is located.
IRJET- Synthesis and Comparative Machining Characterization of A356 - Graphit...IRJET Journal
This document summarizes a study that compared the machinability of three aluminum matrix composites: A356 reinforced with 5% graphite powder, 5% SiC powder, and 5% calcium silicate powder. Specimens of the three composites were produced using stir casting and tested on a lathe at various cutting speeds and depths of cut. Cutting forces, surface roughness, material removal rate, and power consumption were measured and compared. The results showed that the A356-graphite composite exhibited better machining characteristics than the other two composites.
IRJET- Experimental Investigation of Wear Rate using Alternating Material for...IRJET Journal
This document experimentally investigates wear rates of materials for bushings used in food mixers. The existing bushing material is gunmetal, which has a high copper content. Testing on a pin-on-disc tribometer shows the wear rate of gunmetal at various loads and speeds. To reduce wear, a composite of brass and 5% molybdenum disulfide is proposed as an alternative material. Samples of the proposed material are fabricated via powder metallurgy and tested under the same conditions as the existing gunmetal. Test results show the proposed composite has a lower wear rate than the existing gunmetal bushing material across all loads and speeds tested.
Study on Microstructure and machining characteristics of 7% B4Cp reinforced i...IJTET Journal
The document discusses a study on the microstructure and machining characteristics of an aluminum 6061 metal matrix composite reinforced with 7% boron carbide particles produced by stir casting. The microstructure of the composite showed a homogeneous distribution of boron carbide particles in the aluminum matrix. Tests were conducted to analyze the effects of varying cutting speed, feed rate, and depth of cut on the cutting forces and surface roughness when machining the aluminum-boron carbide composite.
Studies on Al8081-B4C Metal Matrix Composites Fabricated by Stir Casting MethodIJMER
Aluminium MMCs are preferred in the fields of aerospace, military, automotive, marine and
in many other domestic applications. In the present work, an attempt has been made to develop and
study the, Mechanical properties of Al-8081/B4C reinforced aluminium metal matrix composites. The
composite was prepared by using Liquid Metallurgy Route (Stir Casting Technique). Liquid state has
some important advantages such as better matrix particle bonding, easier control of matrix structure,
simplicity, low cost of processing, nearer to net shape and wide selection of material. Al-8081 alloy
was taken as the base matrix to which B4C particulates are used as reinforcements. Al8081-B4C
composites were prepared by varying weight percentage of B4C i.e 0 to 6 %, in steps of two. The
objective is to study the effect of B4C particulates on mechanical properties such as ultimate tensile
strength, yield strength and hardness of Al8081 alloy composites. The results of this study revealed
that, as the B4C content was increased, there were significant increases in the ultimate tensile strength,
yield strength and hardness in the composites as compared to the base matrix
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.
IRJET- Study and Characterization of Aluminium 7075 Hybrid Composites Rei...IRJET Journal
This document summarizes a study that characterized aluminum 7075 hybrid composites reinforced with boron carbide and tungsten carbide particles. The composites were fabricated using stir casting by varying the boron carbide content from 2-6wt% and keeping tungsten carbide constant at 4wt%. Testing showed that hardness increased with higher boron carbide content, while density remained similar to aluminum 7075. Wear resistance also improved with increased hardness. Microstructural analysis revealed a more uniform distribution of reinforcements at higher boron carbide levels. Overall, the composites demonstrated enhanced mechanical properties for applications requiring high strength and wear resistance.
Studies on jet penetration and kerf width at various operating pressure in ma...eSAT Journals
Abstract Abrasive Water Jet (AWJ) machining is one of the non-traditional machining method popular method for machining of hard, heat sensitive and brittle materials. The present work attempts to investigate the effect of operating pressure on depth of penetration and kerf characteristics generated while machining of D2 heat treated steel. It is found that increase in operating pressure increases the depth of penetration and decreases the surface taper on the work-piece. Keywords: Kerf width, Depth of cut, Operating pressure, AWJ Machining
Ceramic Coating on Piston Top in IC Engine to Reduce Thermal LossesIRJET Journal
The document discusses applying ceramic coatings to piston tops in internal combustion engines to reduce thermal losses. A simulation study was conducted using ANSYS software to analyze the impact of thermal barrier coatings (TBCs) made of magnesia stabilized zirconia and yttria stabilized zirconia on piston performance. The results showed that pistons with 0.6mm coatings of these ceramics performed better than an uncoated piston under all operating conditions, with lower temperatures and stresses. Applying a bond coat of NiCrAl between the piston and ceramic coating can further reduce thermal stresses and cracking.
IRJET- Improving the Performance of M42 Twist Drill ToolIRJET Journal
This document summarizes an experiment to optimize the heat treatment process and improve the performance of M42 twist drill tools. The experiment tested different materials, heat treatment cycles, spindle speeds, and point angles. Testing found that M42 material exhibited the lowest wear and temperature, making it the best material. Further testing determined that a point angle of 118 degrees and spindle speed of 750 RPM provided the best performance. In total, the experiment aimed to optimize the drill tool design and heat treatment process to improve tool life, hardness, and reduce costs.
Characterization of al sic metal matrix by stir-castingIAEME Publication
This document summarizes research on the production and characterization of Aluminum-Silicon Carbide (AlSiC) metal matrix composites fabricated using stir casting. Samples of AlSiC composites with 5-30% SiC by weight were produced. Testing showed that hardness and impact strength increased with higher SiC content, with maximum values at 25% SiC. Microstructure examination found increasing homogeneous dispersion of SiC particles with methods using mechanical stirring during production. The study demonstrated that stir casting can produce AlSiC composites with improved mechanical properties for engineering applications.
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The papers for publication in The International Journal of Engineering& Science are selected through rigorous peer reviews to ensure originality, timeliness, relevance, and readability.
IRJET- Production of Powder Compact with the Help of Universal Testing Ma...IRJET Journal
1. The document describes a study on producing copper powder compacts using a universal testing machine at different compaction pressures.
2. Copper powder is compacted at pressures ranging from 500 MPa to 740 MPa using a die and punch made of D2 and D3 tool steel.
3. The green compacts are then sintered at 700°C for 1.5 hours to increase their density and mechanical properties.
4. The effect of increasing the compaction pressure on properties like porosity, density, and hardness is analyzed. Higher pressures are found to reduce porosity by bringing powder particles closer together.
Design and Analysis of Composite CylinderIRJET Journal
This document describes the design and analysis of a composite cylinder using ANSYS software. It begins with an introduction to pressure vessels and the benefits of using composite materials instead of steel, including lower weight. It then details the modeling and analysis process in ANSYS to optimize the winding angle and thickness of the composite cylinder. The results of the ANSYS analysis are compared to experimental data and the structural efficiency of the composite cylinder is evaluated against a steel cylinder of the same dimensions.
IRJET-Fabrication And Testing Of Aluminium Metal Matrix Composites Through St...IRJET Journal
This document discusses the fabrication and testing of aluminum metal matrix composites produced through stir casting technique. Magnesium and zinc particles were added to an aluminum alloy 6061 at volume fractions of 3%, 6%, and 9%. The composites were tested for tensile strength, compression strength, hardness, and bending. Tensile testing showed that ultimate tensile strength increased with higher particle content, reaching a maximum of 26.211 MPa for the 9% composite. Compression testing yielded a maximum strength of 20.976 MPa also for the 9% composite. Hardness values ranged from 104-119 Vickers hardness. The study concluded that stir casting can successfully produce aluminum composites with improved mechanical properties over the unreinforced alloy
IRJET- Analysis of Diagrid Structures with Plan IrregularityIRJET Journal
This document describes the development and characterization of a magnesium matrix composite reinforced with borosilicate particles using powder metallurgy techniques. Magnesium and borosilicate powders were mixed in 7%, 14%, and 21% borosilicate compositions and compacted and sintered to form composite materials. The composites were then tested for corrosion resistance, compression strength, and examined microscopically. Test results showed the borosilicate reinforcement improved the properties of the magnesium matrix composite compared to unreinforced magnesium.
IRJET- Development and Characterization of Borosilicate Particles Reinforced ...IRJET Journal
This document discusses the development and characterization of a magnesium matrix composite reinforced with borosilicate particles using powder metallurgy techniques. Magnesium and borosilicate powders were mixed in 7%, 14%, and 21% borosilicate compositions and compacted and sintered to form composites. Tests on the composites showed that increasing the borosilicate content improved corrosion resistance while the 14% composition exhibited the highest elongation under compression testing. Microstructure images indicated finer borosilicate particle distribution in the 7% composition compared to coarser particles in the 14% and 21% compositions. The composites developed through this low-cost powder metallurgy method showed potential for applications requiring good strength and
EXPERIMENTAL INVESTIGATION ON MECHANICAL TESTING OF AL7085/ALUMINA NANO COMPO...IRJET Journal
The document experimentally investigates the mechanical properties of Al7085/alumina nano composites fabricated using stir casting. Al7085 alloy was selected as the matrix material and reinforced with 0.5%, 1%, and 1.5% weight fractions of alumina nanoparticles. Tensile, hardness, and impact tests were performed on the composites to determine properties like ultimate tensile strength, yield strength, hardness, and impact strength and compare them to the unreinforced Al7085 alloy. The test results found that the tensile strength and yield strength increased with higher alumina content, while the hardness and impact strength values were highest for the 1% reinforced composite.
This document summarizes research measuring tool flank wear when machining Inconel 825. The research was conducted in two stages:
1. Dry turning of Inconel 825 was performed on a CNC machine using uncoated carbide tools. Tool flank wear was measured under varying spindle speeds from 300-900 RPM and feeds of 0.06, 0.08, and 0.1 mm/rev.
2. Dry turning of Inconel 825 was also performed on a conventional lathe under varying cutting conditions. Tool flank wear was again measured.
The goal of the research was to compare tool flank wear when machining Inconel 825 on a CNC machine versus a conventional
The document discusses the design of a forging die for a planetary gear blank. It begins with an introduction to forging as a metalworking process and advantages it provides over other manufacturing methods. It then outlines the objectives and methodology for the die design project. The methodology involves designing the final gear part geometry, determining stock size requirements, and designing the forging die. Key die design considerations discussed include parting line selection, drafting angles, fillet and corner radii, flash and gutter design, and shrinkage allowance. The document concludes with CAD drawings of the designed forging die.
This document reviews impression die forging. It discusses how computer aided engineering techniques are used to optimize die design to improve accuracy and reduce costs. The document summarizes existing die design techniques and approaches to develop an optimal system. Impression die forging can produce parts with high complexity from various metals at moderate costs. The document also discusses common materials used in closed die forging like steel, aluminum, and copper, as well as advantages like net shapes, high strength, and close tolerances and disadvantages like high tooling costs and size limitations.
EFFECT OF MECHANICAL PROPERTIES ON ZIRCONIUM OXIDE AND TITANIUM REINFORCED WI...IRJET Journal
This document summarizes a study that investigated the mechanical properties of aluminum metal matrix composites reinforced with zirconium oxide and titanium. Samples were fabricated using AA6082 aluminum alloy as the matrix reinforced with 2%, 4%, and 6% weight percentages of zirconium oxide and titanium particles. The samples were produced using stir casting and then tested for various mechanical properties. Testing included wear resistance, hardness, compression testing, impact testing, and microscopic analysis. The goal of the study was to determine how the mechanical properties of the aluminum composites are affected by the addition and varying amounts of zirconium oxide and titanium reinforcements.
Study On Machining Ability Of Polymer CompositesIRJET Journal
This document discusses studying the machining ability of polymer composites reinforced with natural fibers like jute and glass fibers. The objectives are to examine the machinability of natural fiber composites, polymer fiber composites, and hybrid composites at 0 degree orientation and perform stability testing. The document outlines the materials and methods used like fabricating composite test specimens using epoxy resin and evaluating properties through tensile, flexural, and machining tests. It discusses challenges with machining composites like heat dissipation issues and provides conclusions that hybrid composites showed improved tensile and flexural strength compared to the natural and polymer fiber composites alone.
Irjet v4 i7349A Review on Plasma Spray Coatings and its CharacterizationIRJET Journal
This document summarizes a research paper that reviewed plasma spray coatings and their characterization. Plasma spraying was used to apply coatings of chrome oxide mixed with illmenite and quartz onto mild steel samples. The coatings were characterized to analyze their surface properties, microstructure, thickness, hardness and erosion resistance. The coatings provided good protection against erosion and abrasive wear. The mixture of chrome oxide, quartz and illmenite was coated onto steel samples using plasma spraying at different power levels. Coating characterization included SEM analysis, thickness measurement, hardness testing and erosion testing to evaluate the performance of the coatings.
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
Optimization of EDM Process Parameters using Response Surface Methodology for...ijtsrd
The present work demonstrates the optimization process of material removal rate MRR of electrical discharge machining EDM by RSM Response Surface Methodology . The work piece material was EN31 tool steel. The pulse on time, pulse off time, pulse current and voltage were the control parameters of EDM. RSM method was used to design the experiment using rotatable central composite design as this is the most widely used experimental design for modeling a second–order response surface. The process has been successfully modeled using response surface methodology RSM and model adequacy checking is also carried out using Minitab software. The second order response models have been validated with analysis of variance. Finally, an attempt has been made to estimate the optimum machining conditions to produce the best possible responses within the experimental constraints. Dr. N. Mahesh Kumar | Mr. P. Chinna Rao ""Optimization of EDM Process Parameters using Response Surface Methodology for AISI D3 Steel"" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-3 | Issue-3 , April 2019, URL: https://www.ijtsrd.com/papers/ijtsrd23535.pdf
Paper URL: https://www.ijtsrd.com/engineering/mechanical-engineering/23535/optimization-of-edm-process-parameters-using-response-surface-methodology-for-aisi-d3-steel/dr-n-mahesh-kumar
Analysis of Mechanical and Metallurgical properties of Al-SiCp Composite by S...IJRES Journal
This document analyzes the mechanical and metallurgical properties of an Al-SiCp composite produced using a squeeze-cum-stir casting technique. Samples were produced with 5%, 15%, and 25% SiCp by volume and tested for hardness, impact strength, and microstructure. Hardness and impact strength increased with higher SiCp content. Micrographs showed more homogeneous particle distribution for the 15% sample. The new casting technique was found to improve properties over conventional stir casting and reduce particle clustering even at high SiCp contents.
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STUDY THE EFFECT OF RESPONSE REDUCTION FACTOR ON RC FRAMED STRUCTUREIRJET Journal
This study examines the effect of response reduction factors (R factors) on reinforced concrete (RC) framed structures through nonlinear dynamic analysis. Three RC frame models with varying heights (4, 8, and 12 stories) were analyzed in ETABS software under different R factors ranging from 1 to 5. The results showed that displacement increased as the R factor decreased, indicating less linear behavior for lower R factors. Drift also decreased proportionally with increasing R factors from 1 to 5. Shear forces in the frames decreased with higher R factors. In general, R factors of 3 to 5 produced more satisfactory performance with less displacement and drift. The displacement variations between different building heights were consistent at different R factors. This study evaluated how R factors influence
A COMPARATIVE ANALYSIS OF RCC ELEMENT OF SLAB WITH STARK STEEL (HYSD STEEL) A...IRJET Journal
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Effect of Camber and Angles of Attack on Airfoil CharacteristicsIRJET Journal
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A Review on the Progress and Challenges of Aluminum-Based Metal Matrix Compos...IRJET Journal
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Dynamic Urban Transit Optimization: A Graph Neural Network Approach for Real-...IRJET Journal
This document discusses research on using graph neural networks (GNNs) for dynamic optimization of public transportation networks in real-time. GNNs represent transit networks as graphs with nodes as stops and edges as connections. The GNN model aims to optimize networks using real-time data on vehicle locations, arrival times, and passenger loads. This helps increase mobility, decrease traffic, and improve efficiency. The system continuously trains and infers to adapt to changing transit conditions, providing decision support tools. While research has focused on performance, more work is needed on security, socio-economic impacts, contextual generalization of models, continuous learning approaches, and effective real-time visualization.
Structural Analysis and Design of Multi-Storey Symmetric and Asymmetric Shape...IRJET Journal
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A Review of “Seismic Response of RC Structures Having Plan and Vertical Irreg...IRJET Journal
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This document provides a review of machine learning techniques used in Advanced Driver Assistance Systems (ADAS). It begins with an abstract that summarizes key applications of machine learning in ADAS, including object detection, recognition, and decision-making. The introduction discusses the integration of machine learning in ADAS and how it is transforming vehicle safety. The literature review then examines several research papers on topics like lightweight deep learning models for object detection and lane detection models using image processing. It concludes by discussing challenges and opportunities in the field, such as improving algorithm robustness and adaptability.
Long Term Trend Analysis of Precipitation and Temperature for Asosa district,...IRJET Journal
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Survey Paper on Cloud-Based Secured Healthcare SystemIRJET Journal
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React based fullstack edtech web applicationIRJET Journal
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