AN UPPER BOUND SOLUTION OF BACKWARD TUBE EXTRUSION PROCESS THROUGH CURVED PUNCHES

In this paper, an upper bound approach is used to analyze the process of backward tube extrusion through arbitrarily curved punches. Based on the assumptions of proportional angles and proportional distances from the mandrel surface in the deformation zone, two kinematically admissible velocity fie...

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Bibliographic Details
Main Authors: Heshmatollah Haghighat, Gholam Reza Asgari
Format: Article
Language:English
Published: SciCell s.r.o. 2014-03-01
Series:Acta Metallurgica Slovaca
Subjects:
Online Access:https://journals.scicell.org/index.php/AMS/article/view/71