Formability criteria for cold heading applications

被引：0
作者：
El-Lahham, C [1 ]
Nemes, JA
Nickoletopoulos, N
Hone, M
机构：
[1] McGill Univ, Dept Mech Engn, Montreal, PQ H3A 2K6, Canada
[2] Ivaco Rolling Mills, Lorignal, ON K0B 1K0, Canada
来源：
THERMEC'2003, PTS 1-5 | 2003年 / 426-4卷
关键词：
cold heading; formability; adiabatic shear bands; edge cracks; forging;
D O I：
10.4028/www.scientific.net/MSF.426-432.4447
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Criteria for assessing potential defects during the cold heading process are presented. The Cockroft and Latham (C-L) criterion for ductile fracture is used for evaluation of edge cracks, which result from tensile circumferential stress. Internal cracks, arising from adiabatic shear bands, are evaluated using several different criteria. The methodology is illustrated by simulating the multi-sequence heading of an industrial fastener.
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页码：4447 / 4453
页数：7
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