Investigation of Machinability Responses During Magnetic Field Assisted Turning Process of Preheated Mild Steel

This paper aims to investigate the effects of heat treatment and magnetic field on the machinability responses during turning process of mild steel. Investigation of machinability has been studied by considering the tool life, surface roughness and chip morphology. The effect on the rise in temperature during the turning operation has been studied. In the experimental investigations, heat treated mild steel and normal mild steel has been considered as two work materials. Turning operation tests were conducted using lathe machine with automatic feed at room temperature in dry condition. It has been observed that machinability responses with the combined effect of magnetic field and heat treatment gives significant improvement compared to normal machining process in non heat-treated mild steel. The obtained improvement reflects the feasibility of using this technique as a cost effective turning processes.