Numerical and Experimental Approach of Cutting Temperatures to Green Turning of 42CrMo4 Steel

In the present contribution, experimental and numerical methods concerning orthogonal cutting are proposed in order to study the thermal phenomena accompanying the turning process of 42MoCr4 alloyed steel with respect to cutting parameters (depth of cut, feed rate, and cutting speed), such as cooling-lubrication method. Two environment-friendly cooling techniques (near dry cutting and dry cutting) and for comparison reasons conventional flood cooling have been considered. For experimental validation, series of tests are carried out concerning cutting temperature measurement close to the cutting zone. The influence of cutting conditions on the cutting temperature has been analyzed using Design Expert software. Additionally, for the dry cutting tests, numerical simulation of thermal phenomenon have been performed using DEFORM 2D software. Comparison of numerical results concerning cutting temperature to experimental ones shows a very good coincidence.