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RESEARCH PAPERS: Papers on Production Engineering

Slip-Line Field and Stress Distribution for Flat Rolling in Model Test

[+] Author and Article Information
T. Nishitani, A. Hasegawa

Department of Mechanical Engineering, Suzuka College of Technology, Suzuka, 510-02, Japan

J. Eng. Ind 107(3), 234-240 (Aug 01, 1985) (7 pages) doi:10.1115/1.3185992 History: Received November 16, 1984; Online July 30, 2009

Abstract

In the flat rolling, there are many theoretical investigations for finding the slip-line field and the stress distribution under the condition of rigid-perfectly plastic strip or ideal work-hardening strip. However, the propriety of hypothesis used has been ascertained only partly. Though some experimental investigations have been performed to find the roll pressure and so on, the relations between their results and the corresponding actual stress states are not analyzed sufficiently. In the present paper, the proposed photoviscoplasticity is applied to analyze the slip-line field, stress states near the contact surface and the normal roll pressure of the strip in the model test of the flat rolling. As the results, the experimental slip-line field was remarkably different from the theoretical one. The normal roll pressure was appreciably affected by the deformation speed.

Copyright © 1985 by ASME
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