Актуальные проблемы в машиностроении №2 2015

Actual Problems in Machine Building. 2015. N 2

Materials Science

in Machine Building

____________________________________________________________________

390

среди инструментальных легированных штамповых сталей, предпочтительнее стали марок

Х12МФ и Х12Ф1.

Список литературы

1. Гуляев, А. П. Металловедение. – М.: Москва, Металлургия, 1986 г. – 544 с.

2. Геллер, Ю. А. Инструментальные стали. – М.: Москва, Металлургия, 1983 г. – 527 с.

3. Бородулин, Г.М., Мошкевич, Е.И. Нержавеющая сталь. – М.: Москва, Металлургия,

1973 г. – 319 с.

4. Позняк Л.А., Скрынченко Ю.М., Тишеев С.И. Штамповые стали. – М.: Москва,

Металлургия, 1980 г. – 244 с.

TECHNOLOGICAL FEATURES OF HIGH-CHROME DIE STEEL APPLICATION

IN MACHINE BUILDING

Bondar O.V.,

Ph.D. applicant, e-mail:

Kuzbass State Technical University named after T.F. Gorbachev, 28 Vesennyaya str., Kemerovo,

650000, Russian Federation

Abstract

In modern machine building it is highly important to choose die steels which have the main

properties without any irremovable defects necessary for tools. The X12 high-chrome steel which

offers high wear resistance, increased heat conductivity, low heat treatment deformability, and some

other special characteristics is widely used for cold dies containing 11 – 13% of chrome and 1,4 –

2,5% of carbon. Unfortunately, high wear resistant high-chromium tool steels are not widely used

now because of high carbide inhomogeneity and a tendency to defect (crack) formation. For this

reason, it is very important to analyze causes of crack emergence at all technological stages, and to

reveal the factors which, if modified, make possible to minimize a possibility of defect formation.

Keywords

die steels, wear resistance, carbide inhomogeneity