A Study on Process Parameters in Milling of Al-MMC
Journal Title: International Journal of Science Engineering and Advance Technology - Year 2014, Vol 2, Issue 12
Abstract
Metal Matrix Composites have become a leading material among composite materials. In particular, particle reinforced Aluminum Metal Matrix Composite (AMMC) have received considerable attention due to their excellent engineering properties. Aluminum metal matrix refers to the class of light weight high performance aluminum centric material systems. The reinforcement in AMC’s could be in the form of continuous/ discontinuous fibers, whiskers or Particulates in volume fractions ranging in percentages. Properties of AMC’s can be tailored to the demands of different industrial applications by suitable combinations of matrix reinforcement and processing routes. In this study an attempt has been made to manufacture the AMC through a liquid metallurgical route. The matrix used in the study is Aluminum alloy and reinforcement particles selected are Silicon Carbide (SiC) particles ranging its size from 50-70 microns. The study also focuses to establish a mathematical relationship between process parameters like Cutting speed, Feed Rate, Depth of cut and surface roughness (Ra) in End Milling operation. A CNC machining center with 8 mm diameter HSS end milling cutter with 30° helix angle is used for machining by employing a L16 (44) Taguchi’s orthogonal array for the experiment plan. A linear and multiple regression analysis using analysis of variance is conducted to determine the performance of experimental measurements and to show the effect of four cutting parameters on the surface roughness.RSM methodology was selected to optimize the surface roughness resulting minimum values of surface roughness and their respective optimal condition.
Authors and Affiliations
B. Swapna Priya| PG Scholar, Dept of Mechanical Engineering, Prasiddha College of Engg & Tech, Amalapuram, swpnpr@gmail.com, P. Satish Reddy| Assoc. Professor, Dept of Mechanical Engineering, Prasiddha College of Engg & Tech, Amalapuram, satish2436@gmail.com, P. Bhaskar| Asst Professor, Dept of Mechanical Engineering, Prasiddha College of Engg & Tech, Amalapuram, smilybobbys@gmail.com, M Manoj| Asst Professor, Dept of Mechanical Engineering, Prasiddha College of Engg & Tech, Amalapuram, mattamanoj13@gmail.com
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