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RESEARCH PAPERS: Papers on Production Engineering

Analysis of Extrusion of Polygonal Sections Through Streamlined Dies

[+] Author and Article Information
J. S. Gunasekera

Department of Mechanical Engineering, Ohio University, Athens, Ohio

S. Hoshino

National Defence Academy, Tokyo, Japan

J. Eng. Ind 107(3), 229-233 (Aug 01, 1985) (5 pages) doi:10.1115/1.3185991 History: Received September 01, 1983; Online July 30, 2009

Abstract

A new upper-bound solution is developed for the extrusion of polygonal sections through shaped dies. The surface of the die is generated by an envelope of curved lines drawn from points on the perimeter at the entry section to corresponding points at the exit of the die. The present investigation is concerned with the analysis of streamlined dies (a subset of shaped dies), though the method is applicable to other curved dies such as parabolic, convex or concave shapes. It is concluded that the streamlined die is superior to the straightly converging dies from the aspect of reducing the extrusion load.

Copyright © 1985 by ASME
Topics: Extruding , Stress , Shapes
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