ravi butola - Academia.edu (original) (raw)
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International Journal of Engineering Research and Applications (IJERA)
College of Applied Sciences, Oman
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SN Applied Sciences
Aluminum based hybrid metal matrix composites (HMMC) are being employed nowadays in automobile, a... more Aluminum based hybrid metal matrix composites (HMMC) are being employed nowadays in automobile, aeronautical, sports equipment etc. In this study, three different Al6063 based hybrid metal matrix composites (HMMC) samples having reinforcement with 3%, 6% and 9% by weight respectively are fabricated using stir casting method. Reinforcements used are waste products, namely, jute ash, groundnut shell and sugarcane. Surface roughness of these fabricated composite are is tested by varying machining parameters. The design of experiment is constructed by Taguchi method using three factors and two level, with L8 orthogonal array in which surface roughness is the output response parameter. These recorded results are analysed using analysis of variance and optimization of process parameters is done using response surface methodology and genetic algorithm. The Genetic algorithm optimization is achieved within 102 generations which is quite fast. On comparing it was found that results obtained from GA closely agreed with those obtained from the Response surface methodology.
Materials Research Express
Surface Topography: Metrology and Properties
Materials Today: Proceedings
Materials Science Forum
Al based-Hybrid Metal Matrix Composites (HMMC) are becoming widely popular in the Automobile indu... more Al based-Hybrid Metal Matrix Composites (HMMC) are becoming widely popular in the Automobile industry due to its highly attractive characteristics of enhanced hardness. The heterogeneous mixture formed due to the presence of reinforcement particles adds to the strength, wear resistance, hardness etc. to the specimen. In this research, fine ashes of bagasse (sugarcane), banana, and jute (coconut covering) were used, produced by burning the above in free atmosphere. The sample was sieve tested to 200 mesh size and ball milled in the presence of SiC with weight ratio of 1:2. Stir casting of the composite was performed in the melting furnace to produce different specimens of Al6061 consisting of different types of reinforcement. The specimens were then exposed to various tests to determine Ultimate tensile strength, yield strength, hardness, and percentage elongation. The best results termed out with the specimen reinforced with banana ash at the cost of loss in ductility exhibiting Ult...
Engineering Research Express
In the present research, work is carried out for the parametric effects like tool rotation speed,... more In the present research, work is carried out for the parametric effects like tool rotation speed, tool profile and reinforcement in friction stir processing (FSP) of AA7075 on the microhardness and microstructural properties. The experiment design was carried out using Taguchi L9 orthogonal array with three factors at three levels. Three different tool pin profiles viz. circular, triangular and square were used to experiment. The AA7075 matrix material was reinforced with SiC, RHA, and B4C. The tool rotational speed was chosen as 700, 1000 and 1300 rpm. Using the Taguchi method, the optimum level of each of these parameters was obtained. It was found that rotational speed is the most influential parameter followed by the type of reinforcement and tool profile respectively. The average microhardness of AA7075/B4C composite was found to be increased by 1.5 -1.6 times of the base indicating that B4C is better compared to SiC and RHA in improving the microhardness value of the composites.
International Journal for Research in Applied Science and Engineering Technology
Materials Today: Proceedings
Materials Today: Proceedings
Materials Today: Proceedings
SAE Technical Paper Series
Materials Today: Proceedings
Materials Today: Proceedings
Indian Journal of Applied Research, 2011
SN Applied Sciences
Aluminum based hybrid metal matrix composites (HMMC) are being employed nowadays in automobile, a... more Aluminum based hybrid metal matrix composites (HMMC) are being employed nowadays in automobile, aeronautical, sports equipment etc. In this study, three different Al6063 based hybrid metal matrix composites (HMMC) samples having reinforcement with 3%, 6% and 9% by weight respectively are fabricated using stir casting method. Reinforcements used are waste products, namely, jute ash, groundnut shell and sugarcane. Surface roughness of these fabricated composite are is tested by varying machining parameters. The design of experiment is constructed by Taguchi method using three factors and two level, with L8 orthogonal array in which surface roughness is the output response parameter. These recorded results are analysed using analysis of variance and optimization of process parameters is done using response surface methodology and genetic algorithm. The Genetic algorithm optimization is achieved within 102 generations which is quite fast. On comparing it was found that results obtained from GA closely agreed with those obtained from the Response surface methodology.
Materials Research Express
Surface Topography: Metrology and Properties
Materials Today: Proceedings
Materials Science Forum
Al based-Hybrid Metal Matrix Composites (HMMC) are becoming widely popular in the Automobile indu... more Al based-Hybrid Metal Matrix Composites (HMMC) are becoming widely popular in the Automobile industry due to its highly attractive characteristics of enhanced hardness. The heterogeneous mixture formed due to the presence of reinforcement particles adds to the strength, wear resistance, hardness etc. to the specimen. In this research, fine ashes of bagasse (sugarcane), banana, and jute (coconut covering) were used, produced by burning the above in free atmosphere. The sample was sieve tested to 200 mesh size and ball milled in the presence of SiC with weight ratio of 1:2. Stir casting of the composite was performed in the melting furnace to produce different specimens of Al6061 consisting of different types of reinforcement. The specimens were then exposed to various tests to determine Ultimate tensile strength, yield strength, hardness, and percentage elongation. The best results termed out with the specimen reinforced with banana ash at the cost of loss in ductility exhibiting Ult...
Engineering Research Express
In the present research, work is carried out for the parametric effects like tool rotation speed,... more In the present research, work is carried out for the parametric effects like tool rotation speed, tool profile and reinforcement in friction stir processing (FSP) of AA7075 on the microhardness and microstructural properties. The experiment design was carried out using Taguchi L9 orthogonal array with three factors at three levels. Three different tool pin profiles viz. circular, triangular and square were used to experiment. The AA7075 matrix material was reinforced with SiC, RHA, and B4C. The tool rotational speed was chosen as 700, 1000 and 1300 rpm. Using the Taguchi method, the optimum level of each of these parameters was obtained. It was found that rotational speed is the most influential parameter followed by the type of reinforcement and tool profile respectively. The average microhardness of AA7075/B4C composite was found to be increased by 1.5 -1.6 times of the base indicating that B4C is better compared to SiC and RHA in improving the microhardness value of the composites.
International Journal for Research in Applied Science and Engineering Technology
Materials Today: Proceedings
Materials Today: Proceedings
Materials Today: Proceedings
SAE Technical Paper Series
Materials Today: Proceedings
Materials Today: Proceedings
Indian Journal of Applied Research, 2011