Investigation of the EDM Process of Transport Machine Parts from Carbon-Carbon Composites

Abstract

Currently, composite materials replacing alloys are becoming more and more widespread in the aircraft industry, automotive industry, aerospace and other industries. As applied to carbon-carbon composites, this is due to their high bending strength, low specific gravity, and retention of characteristics at high temperatures. At the same time, mechanical processing of composites to obtain a high surface quality is complicated by cutting conditions and the tendency of composite materials to delamination and chipping, which allows us to conclude that it is advisable to use processing methods for processing such composites that do not have a force effect on the workpiece being processed. In this work, the dependence of the duration of processing on the current strength and the dependence of the roughness of the treated surface on the current strength were studied.