Formability criteria for cold heading applications

Christine El-Lahham, James Nemes, Nicholas Nickoletopoulos, Michel Hone

Research output: Contribution to journalConference article


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.

Original languageEnglish (US)
Pages (from-to)4447-4454
Number of pages8
JournalMaterials Science Forum
Issue number5
Publication statusPublished - Jul 18 2003
EventThermec 2003 Processing and Manufacturing of Advanced Materials - Madrid, Spain
Duration: Jul 7 2003Jul 11 2003


All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

El-Lahham, C., Nemes, J., Nickoletopoulos, N., & Hone, M. (2003). Formability criteria for cold heading applications. Materials Science Forum, 426-432(5), 4447-4454.