A study on variable friction model in sheet metal forming with advanced high strength steels

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

34 Scopus Citations
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Author(s)

  • Wurong Wang
  • Yuzhang Zhao
  • Zimin Wang
  • Meng Hua
  • Xicheng Wei

Detail(s)

Original languageEnglish
Pages (from-to)17-28
Journal / PublicationTribology International
Volume93
Online published12 Sep 2015
Publication statusPublished - Jan 2016

Abstract

Conventional Coulomb model assumes constant friction coefficient in sheet metal forming simulation. It tends to predict too high friction shear stress in forming advanced high-strength steels (AHSS). Study is conducted by firstly designing an experiment method to develop a pressure-dependent variable friction model for DP780 AHSS sheet sliding against DC53 cold-work tool. The model is then used to simulate the forming and springback of U-shape bending under tension. Comparison of the predicted results with (i) pressure-dependent variable friction model, (ii) constant friction model, and the result of experimental verification indicates significant improvement of springback prediction with the proposed model.

Research Area(s)

  • Advanced high strength steels, Sheet metal forming, Springback, Variable friction model