Advanced Drilling Methods, Holes
Abstract
The research paper discusses the issues of improving the productivity and quality of hole drilling. The results of systematization were carried out and methods of drilling with changing cutting conditions during plunge-in and entry of the drill, grinding of the coming off chips and removal of it and the cutting zone were developed and introduced into production, promising instrumental materials, coolant compositions, optimal cutting modes, a mathematical model of the influence of modes and methods of drilling on accuracy and quality of holes. The algorithm of the proposed methods of drilling for machine tools with programmed control has been compiled.