Study The Influence of Forming Conditions Like DeformationSpeed on Void Closure in Open Die Forging

This paper presents an investigation to the effect of the forming speed on healing voids that inhabit at various size in an ingot. The study was performed by using finite element method with bilinear isotropic material option, circular type voids were considered. The closure index was able to predic...

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Bibliographic Details
Main Author: Alaa Hassan Ali
Format: Article
Language:English
Published: Al-Khwarizmi College of Engineering – University of Baghdad 2008-01-01
Series:Al-Khawarizmi Engineering Journal
Online Access:http://www.iasj.net/iasj?func=fulltext&aId=2186
Description
Summary:This paper presents an investigation to the effect of the forming speed on healing voids that inhabit at various size in an ingot. The study was performed by using finite element method with bilinear isotropic material option, circular type voids were considered. The closure index was able to predict the minimum press force necessary to consolidate voids and the reduction. The simulation was carried out, on circular cross-section lead specials containing a central void of different size. At a time with a flat die, different ratio of inside to outside radius was taken with different speed to find the best result of void closure.
ISSN:1818-1171