Industrial application of diamond-electrochemical honing method

Abstract

The method of diamond-electrochemical honing (DEH) is a finishing method that provides the required characteristics of surface roughness, the distribution of residual surface stress diagrams, which ultimately ensures the formation of a high-strength electroplated coating. This article presents studies of changes in surface roughness, residual stresses and other parameters depending on the selected DEH modes for parts made of steels 30KhGSA, 30KhN2MFA, 35KhN2MFASH, 50A. The article presents the design of the instrument-khon; with the solution of the issue of the geometric characteristics of the cathode part, the insulating coating and the material of the hone tool guides. The regime support of the DEH was formed on the basis of studies, the results of which are given in the article. The selected kinematic-geometric indicators of the hone-tool — workpiece system make it possible to form the drives of the DEH equipment. The optimal composition of the DEH electrolyte was chosen with the creation of an electrolyte storage and supply system. The article contains the results of studies demonstrating the effect of DEH on the reliability and durability of parts subject to the use of this method. Data on the technical and economic efficiency of the created industrial site of the DEH are presented.