An Analysis of Cutting Force and Surface Finish in Surface Grinding of Aisi H13 Steel
P.V. Vinay†, Ch. Srinivasa Rao‡, K. Pavan Kumar†
‡Andhra University College of Engineering, Andhra University, Visakhapatnam, India
ABSTRACT: Surface grinding of hardened steels being used in the mould and die industry requires a better surface quality. The grinding of AISI H13 tool steel with a production level grinding wheel used in the industry is the motivation for the present research article. The experimentation is done in dry as well as wet conditions to establish the better of the two conditions in providing a better set of cutting forces and surface roughness during surface grinding. A mathematical model is developed and on comparing with the results from experimentation is found to be correlating. The usage of production level vitrified grinding wheel has shown good results in terms of lower forces generated and good surface finish during surface grinding. The results are optimized using Multi Objective Genetic Algorithm (MOGA) and the set of inputs which yield good surface finish and low forces are given. Dry grinding of AISI H13 yields good surface finish than wet grinding. Surface finish of 0.18 microns is achievable using dry grinding..
Keywords : Hardened steel; Surface grinding; Cutting forces; Surface finish; Tangential force; Normal force; Design explorer.