An optimization of exchanged grinding wheel diameter when surface grinding alloy tool steel 9CrSi

This paper presents an optimization of exchanged grinding wheel diameter for surface grinding alloy tool steel 9CrSi based on the cost analysis for surface grinding. The optimum exchanged grinding wheel diameter was determined by minimizing the cost function. An experiment design was set up, and a computational program was built to perform the experiment in order to calculate the optimum exchanged grinding wheel diameter. The influence of grinding process parameters such as the initial grinding wheel diameter, the total dressing depth, and the radial grinding wheel wear per dress and the wheel life on the optimum exchanged grinding wheel diameter was investigated. In addition, the effect of the cost components such as the machine tool hourly rate and the grinding wheel cost on the optimum diameter of exchanged grinding wheel was also given. From the results, an explicit equation was obtained to determine the optimum exchanged grinding wheel diameter. The calculation value of the optimum exchanged grinding wheel diameter from the formula was also verified by the experiment. (C) 2019 Elsevier Ltd. All rights reserved.