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RESEARCH PAPERS

Investigation Into Relationship Between Friction Behavior and Plastic Deformation Using a Newly Devised Rolling-Type Tribometer

[+] Author and Article Information
Kuniaki Dohda

Department of Mechanical Engineering, Gifu University, 1-1 Yanagido, Gifu, Japan

Zhrgang Wang

Department of Mechanical System Engineering, Toyama Prefectural University, 5180 Kosugi, Toyama, Japan

J. Tribol 117(3), 529-533 (Jul 01, 1995) (5 pages) doi:10.1115/1.2831286 History: Received December 20, 1993; Revised July 29, 1994; Online January 24, 2008

Abstract

A new rolling-type tribometer has been devised to investigate the effects on friction behavior of the average velocity of the lubricant at the inlet to the contact zone and the relative sliding velocity during deformation independently. This paper shows the principle of operation of the tribometer and deformation mode of the workpiece, especially considering the relationship between friction and bulk deformation. Experiments using mild steel strips with a dull surface showed that the friction stress on the friction roll, which has a smaller velocity than that of the traction roll, is mainly controlled by lubricating conditions on the friction roll side. The contact pressure is mainly decided by the friction conditions on the traction roll side. It was also revealed that, with an increase of the reduction in the workpiece thickness, the friction stress on the friction roll side remains constant when the friction roll is rotated. The friction stress increases when the friction roll is stopped after a certain reduction in the workpiece thickness.

Copyright © 1995 by The American Society of Mechanical Engineers
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