Abstract
In order to find out the method of hot machining which is of high efficiency and simple, we examine following two methods. i.e., (1) Hot machining by heating tool; By this method heat is supplied from tool to workpiece. (2) Hot machining by electric heat; By this method the tool and the workpiece are connected to electric source and they are heated by electric current directly.
In this paper the effect of hot machining by heating tool is analyzed theoretically and examined experimentally by nylon as workpiece material. It is clarified this method is so effective on reducing the cutting force and on increasing the shear angle, and their effects are explained from theoretical consideration.
