Surface Roughness Optimization and Modeling of Finishing Operation for Hardened X40CrMoV51 Steel with Ceramic Tool
Mehmet Erdi KORKMAZ Mustafa GÜNAY
AbstractHard turning is an alternative machining method instead of cylindrical grinding. In this method, more efficient results can be obtained for surface integrity (surface roughness, hardness, residual stress, etc.) of the machined parts when the cutting conditions are optimized. This study includes the optimization of cutting parameters for the minimum surface roughness (Ra) and the development of a mathematical model for estimation of Ra in turning of hardened X40CrMoV5-1 tool steel with ceramic cutting tools. In this context, hard turning tests were made at three different levels using the cutting speed (V), cutting depth (a) and feed rate (f). According to the Taguchi methodology, the optimum cutting parameters were determined as the a2V3f1 test sequence. According to the results of the analysis of interactive variance, the most important parameter was determined as the feed rate.