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RESEARCH PAPERS

Development of a New Tool Material to Ensure High Performance in Hot Steel Rolling

[+] Author and Article Information
Kenji Tsubouchi

Department of Metal Working, Corporate Research & Development Laboratories, Sumitomo Metal Industries Ltd., 1-8 Fuso-cho, Amagasaki, 660-0891, Japan

Masayoshi Akiyama

Corporate Research & Development Laboratories, Sumitomo Metal Industries Ltd., 1-8 Fuso-cho, Amagasaki, 660-0891, Japan

Eiji Yamamoto

Specialty Tubing Technology Section, Quality Control & Products Development Department, Steel Tube Works, Sumitomo Metal Industries Ltd., 1 Nishino-cho, Higashi-Mukojima, Amagasaki, 660-8404, Japan

Toshiro Mase

Technical Research Laboratories, Sumitomo Light Metal Industries Ltd., 3-1-12 Chitose, Minato-ku, Nagoya, 455-0011, Japan

J. Tribol 121(4), 739-745 (Oct 01, 1999) (7 pages) doi:10.1115/1.2834130 History: Received June 18, 1998; Revised September 15, 1998; Online January 24, 2008

Abstract

A new structure design was presented to prolong the tool life for hot metal working. The tool surface deteriorates quickly when attacked under continuous severe sliding conditions by hot metal at a temperature above 1473 K. Observations were made on guide shoes used in seamless tube rolling to reach the conclusion that enlargement of the size and change in the structure of chromium carbide prolong the tool life. This is contrary to the structure design of high-speed steel for which small carbide is recommended. The validity of the new tool was verified both in laboratory tests and in the production line.

Copyright © 1999 by The American Society of Mechanical Engineers
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