Application of Desirability Approach to Optimize the Control Factors in Cryogenic Diamond Burnishing

摘要

Cryogenic diamond burnishing is an impactful method to enhance the functional performance of the product. In this article,an experimental study on the diamond burnishing of 17-4 precipitation hardenable stainless steel in a cryogenic coolingcondition has been presented. This material has excellent corrosion resistance, high strength and enormous applications inthe manufacturing industries. The control variables were namely burnishing force, burnishing feed and burnishing forcehave been studied and modeled for the output responses explicitly surface hardness and surface roughness. The influence ofcontrol variables on performance features has been analyzed using response surface graphs. The significant influence of burnishingconditions on the output responses was established by analysis of variance. Desirability function approach has beenemployed to optimize the multi-performance characteristics. At the corresponding highest desirability, the optimal processparameter combination was found to be burnishing feed = 0.053 mm/rev, burnishing speed = 31.29 m/min and burnishingforce = 200 N which yields a minimum surface roughness = 0.199 μm and maximum surface hardness = 397.48 HV. Themaximum percentage of error among the predicted and experimental results was found to be 10% and 2%, respectively, forsurface roughness and surface hardness. The investigational findings were observed to be in agreement with the predictedvalue with permissible deviation.