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ASM Handbook

Properties and Selection: Irons, Steels, and High-Performance Alloys

By
ASM Handbook Committee
ASM Handbook Committee
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ASM International
Volume
1
ISBN electronic:
978-1-62708-161-0
Publication date:
1990
Book Chapter

P/M Tool Steels

By
K.E. Pinnow
K.E. Pinnow
Crucible Materials Corporation, Crucible Research Center
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W. Stasko
W. Stasko
Crucible Materials Corporation, Crucible Research Center
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Published:
1990
Page range:
780 - 792

Abstract

The powder metallurgy (P/M) process has been used primarily for the production of advanced high-speed tool steels. However, the P/M process is also being applied to the manufacture of improved cold-work and hot-work tool steels. The basic heat treatments for P/M high-speed tool steels include preheating, austenitizing, quenching, and tempering. This article describes manufacturing properties, cutting tool properties, and applications of P/M high-speed tool steels. It discusses the development of P/M high-speed alloy steels that cannot be made by conventional methods because of their high carbon, nitrogen, or alloy contents. For high-speed tool steels, a number of important end-user properties have been improved by powder processing; machinability, grindability, dimensional control during heat treatment, and cutting performance under difficult conditions where high edge toughness is essential. Several of these advantages also apply to P/M cold- and hot-work tool steels, which, compared to conventional tool steels, offer better toughness and ductility for cold-work tooling, better thermal fatigue life, and greater toughness for hot-work tooling.

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K.E. Pinnow, W. Stasko, 1990. "P/M Tool Steels", Properties and Selection: Irons, Steels, and High-Performance Alloys, ASM Handbook Committee

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