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Analysis of Surface Roughness and Material Removal Rate in Engine Valve Turning Operation of Material SUH3

P. S. Patil, R. H. Shinde, S. Sharma

Abstract


The purpose of this paper is to present an experimental work attempting to optimize the influencing
process parameters involved in dry machining of the exhaust engine valve of material martensitic
stainless steel grade SUH3. Looking at available literature it is observed that a lot of work can be done
in the field dry machining related to surface integrity but no work can be reported on investigation
implementation of dry machining in engine valve manufacturing of martensitic stainless-steel of grade
SUH3. In this work Aluminum Tin Nitride (AlTiN) coated carbide cutting tool is used for machining
operation in dry condition.AlTiN coated carbide cutting tool best suitable for dry machining operation
to achieve the required output measure. The experiments were carried out on experimental set up
developed in machine shop. Response surface methodology (RSM), employing a Box–Behnken design
for three design variables such as cutting speed(vc), feed(f), depth of cut (ap) was used to assess the
process performance with the help of 15 experimental run. Minitab 17 soft wear is used in the
experiment for set up of experimental trial. In this experiment Analysis of variance (ANOVA) is used
for checking the consistency of the cutting parameters. Regression based models for the response
outputs were obtained and residual plots is used as graphical representation of analysis done during
experimentation which show the effect of cutting parameters like cutting speed, cutting feed and depth
of cut with the help of various residual plots.


Keywords


Dry machining, Material removal rate, Surface roughness, RSM, Analysis of variance

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