Process Capability Analysis and Optimization in Turning of 11sMn30 Alloy

Abstract

This article depicts the optimization of the three prominent turning process parameters, cutting speed, fede rate and depth of cut respectively for obtaining better process capability index(Cpk) of turning operation performed on the 11SMn30 alloy using carbide tool in dry condition.Surface roughness (Ra and Rz) is the output parameter identified in the study to optimize the process capability index(Cpk). The influence of various input parameters of the turning process and their impact on determining the process capability were studied by adopting Taguchi approach. The surface roughness values (Ra and Rz) are optimised individually for optimizing the input machining parameters with the objective of identifying the optimum cutting speed, feed rate and depth of cut which can maximize the turning process capability. The ANOVA result reveals that the feed rate and cutting speed have equal significance in determining the surface roughness (Ra and Rz).