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RESEARCH PAPERS: Additional Technical Papers

Real Time Identification of Workpiece Material Characteristics From Measurements During Brakeforming

[+] Author and Article Information
K. A. Stelson

Dept. of Mechanical Engineering, University of Minnesota, Minneapolis, Minn.

J. Eng. Ind 105(1), 45-53 (Feb 01, 1983) (9 pages) doi:10.1115/1.3185863 History: Received November 01, 1982; Online July 30, 2009

Abstract

A novel method is described to estimate the material characteristics of a sheet being bent in a pressbrake from punch force-displacement data. The method is simple enough to be used for real time identification of uncertain sheet characteristics. This procedure can be combined with a model of pressbrake bending to provide real time control of the pressbrake. The setup procedure can be eliminated, and the final angle of the bends can be made insensitive to material property variations. A machine controlled in this manner can be integrated into an unmanned flexible sheet metal manufacturing cell.

Copyright © 1983 by ASME
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