Abstract
In present research work the effect of insert nose radius and machining parameters
including cutting speed, feed rate and depth of cut on surface roughness(Ra) and material
removal rate(MRR) in a turning of HSS(M2) are investigated using the Taguchi method
and ANOVA. A three level, four parameter design of experiment,L9 orthogonal array
using Minitab 14 software, the signal-to-noise (S/N) ratio is employed to study the
performance characteristics in the turning of HSS(M2) by taking nose radius of Tin
coated carbide inserts tool of 0.4,0.8 and 1.2 mm on CNC turning centre. The analysis of
variance (ANOVA) is applied to study the percentage contribution of each machining
parameters while CNCturning of HSS (M2) material. The all experimental trials are
conducted in dry machining environment and at a constant spindle speed 2800 rpm.The
results are verified by taking confirmation experiments. The present investigation
indicates that feed rate and nose radius are the most significant factors in case of
material removal rate and surface roughness for turning of HSS (M2) material.