Studies on Turning of Difficult-to-Machine Materials with Actively Driven Rotary Tool

MQL Machining of Inconel718

Abstract

The cutting characteristics of the actively driven rotary lathe tool are investigated from the viewpoint of thermal aspects. The MQL external turning tests of heat-resistant Ni-based alloy (Inconel718) are carried out, in which the cutting temperature is measured using a fiber-coupled two-color pyrometer. The maximum tool temperature in turning of Inconel718 is approximately 100 degree higher than that in SUS304. The relatively lower temperatures are obtained at the appropriate tool revolution speed.