Parametric Analysis and multi objective optimization of process parameters of turning of AISI (4140) with PVD & CVD cutting tool
Keywords:cutting speed, depth of cut, MRR, surface roughness, tool life, full factorial, ANOVA
Modern manufacturers, seeking to remain competitive in the market, Relay on their Manufacturing
engineers and production quality. CNC is most vital machine that can produce machine part with desire surface quality
and higher productivity with less time and cost constrain. This work present multi response optimisation of turning
parameters for turning on AISI 4140 Alloy Steel with both PVD & CVD coated tool. For that purpose take cutting speed,
depth of cut & feed rate as an input parameters and measure the surface roughness, material removal rate & tool life.
Full factorial method used for design of experiment and ANOVA used for finding contribution of each parameter which
are taking here. It gives best significant parameter for surface roughness is feed rate for both approaches PVD & CVD
cutting tool & depth of cut is most significant parameter for tool life for both approaches. Grey relation analysis is multi
objective optimization technique which taking here for optimization for finding out Optimum parameter among various
parameters which gives best result regarding surface roughness, MRR & tool life constrain.