Effect of externally applied magnetic field on the tool wear and surface morphology of Inconel 718 in turning operation

Abstract

This study examined the effect of magnetic field with single point coated‐carbide tool during turning process of Inconel718 (In718). After the turning process, tribological properties (surface roughness and tool wear) and chip morphology were analyzed. Two cylindrical Neodymium (N52) grade permanent magnets are used to apply the magnetic field during the machining. Cutting speed and magnetic field intensity along with constant feed and depth of cut are used to analyze tribological properties along with chip morphology. Experimental results show that 80 m/min cutting speed and 426 Gauss magnetic field has the best results in term of lowest surface roughness and tool wear. Lorentz forces developed due to the applied external magnetic field help to improve surface roughness compared to nonmagnetic field machining. Developed fine particles during the turning process get repulsed in case of magnetic field machining which helps to improve tool wear.

Influence of a Magnetic Field on HSS Tool Wearlife and the Intensity of External Machining Environments in Turning

“…Moreover, they define that the effect of a pulsed magnetic field on drills depends on the treatment length. Sukhdev B. Waghmode et al [17] conducted research on the influence of a magnetic field on the surface morphology of the workpiece and tool wear. They focused on the coated-carbide tool insert as an object of the study in turning, and analysed the chip morphology.…”