INFLUENCE OF NUMBER OF PASSES ON GRINDING PERFORMANCE IN CYLINDRICAL GRINDING OF AA6061- 5%TIB2 /ZRB2 IN-SITU COMPOSITES
Keywords:In-situ Composites, Grinding, Grinding force, Grinding temperature, Specific grinding energy, Surface roughness
The present paper describes the influence of number of passes on grindability under various wheel materials and reinforcement ratio was examined. Frequent wheel dressing of grinding wheel reduce productivity. Grinding tests conducted by using the un reinforced alloy and composites under different grinding wheels like Al2O3,CBN and diamond wheel. AA6061-5%TiB2 /ZrB2 in-situ composite was preferred for the experimental work. Result of the study reveals that the grinding force, grinding temperature, specific grinding energy and surface roughness were increased by enhancing the number of pass. Diamond wheel was outperformed than the Al2O3 and CBN wheels. Specific grinding energy and grinding force for the unreinforced alloy was more than composites. On the other hand, the grinding temperature and surface roughness of the composite was more than the unreinforced alloy. The findings from the experimental work helps to utilize the grinding process for attaining the economic material removal rate without compromise the surface finish.
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