Study on Device of Electric Heating Drill to Small Hole for Hard-to-Cut Material

Abstract

Electric heating cutting technology is that material is heated by the thermal effect of the current so that the cutting zone material is softened, meanwhile this reduces the shear resistance of the material, thereby the cutting process gets smooth. In order to make the electric heating technology apply to the small hole drilling successfully, this paper designs a set of compact and simple electric heating drilling device to small hole, this device adopts the electrode structure to avoid spark, and by the device we drill small hole to hard-to-cut materials stainless steel under various parameter conditions, test process and results show that the electric heating drilling device is effective and practical.