УВЕЛИЧЕНИЕ СТОЙКОСТИ РЕЖУЩИХ ИНСТРУМЕНТОВ ИЗ БЫСТРОРЕЖУЩЕЙ СТАЛИ ПОКРЫТЫХ НИТРИДОМ ТИТАНА ПРИ ОБРАБОТКЕ СПЕЦИАЛЬНО РАСКИСЛЕННЫХ СТАЛЕЙ. Uveličenie stojkosti režuşih instrumentov iz bystrorežuşej stali pokrytyh nitridom titana pri obrabotke special'no raskislennyh stalej

Abstract

Through the use of РУО coating procedure it bесаmе possibIe to increase the life of high-speed steel cutting tool edges, bу TiN coating. In addition, the thermal load of the tool сan also bе increased. This latter fact and the crystal structure of the TiN layer еnаbе in а favourable case the inclusions of the machined steel to form а protective layer оn the surface of the tool subject to wear. This layer consisting of silicates and sulfides results in а further expansion of the tool life and significantly widens the field of application of high-speed steel cutting tools towards the carbides.