Improvement of the performance of a multi-blade tool based on selective equipment with cutting ceramics

Abstract

The increasing pace of industrial production for the production of products and the widespread complexity of the designs of manufactured products, justified by scientific and technological progress, pose a permanent task to the metalworking industry to improve technological processes in order to reduce the time of manufacturing parts and material costs. These requirements lead to the desire of manufacturers to reduce traditional technological processes and significantly increase the processing speed. In such conditions, traditional tool materials are often not applicable, while some materials that were previously not in demand due to the lack of necessary technological conditions are becoming increasingly relevant. One of such materials is cutting ceramics – a material that has the highest efficiency at high cutting speeds, but due to the brittle nature of the fracture provides low stability when used in non-rigid technological systems, under high loads and insufficient attention to the equipment of the tool with ceramic cutting plates. The article is devoted to improving the performance of a multi-blade tool based on selective equipment with ceramic cutting plates during the finishing of the working surfaces of high-precision cast-iron body parts. In the course of this study, the problems of using a multi-blade tool for milling high-precision planes were identified, a way to solve the identified problems was determined, a device was created to determine the microstructural parameters of cutting ceramics based on the known dependence of microstructural characteristics on the electrical resistivity of oxidecarbide cutting plates, a method was developed for selectively equipping a multi-blade cutting tool with oxide-carbide ceramic cutting plates. The effectiveness of the proposed solutions is confirmed by experimental studies.