Зенковки для обработки глубоких отверстий в деталях энергомашиностроения

Abstract

The study focuses on the features of counterbores used for creating internal chamfers in energy engineering components such as collectors and tube sheets of heat exchangers. The designs of counterbores with replaceable carbide inserts, as well as reverse-feed counterbores, are described. The technical characteristics of the tools, material requirements for the cutting edge and tool hold-er, and the structural specifics of the insert mounting system are analyzed. It is highlighted that counterbores with cutting edges made of superhard materials provide high productivity, machining accuracy, and surface roughness comparable to grinding processes, enabling significant improvements in the processing of large-scale workpieces.