Modeling and Simulation of Friction in Deep Drawing

Baspinar M., AKKÖK M.

JOURNAL OF TRIBOLOGY-TRANSACTIONS OF THE ASME, vol.138, no.2, 2016 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 138 Issue: 2
  • Publication Date: 2016
  • Doi Number: 10.1115/1.4031671
  • Journal Name: JOURNAL OF TRIBOLOGY-TRANSACTIONS OF THE ASME
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Keywords: friction modeling, rough surface contact, square cup drawing, AVERAGE FLOW MODEL, LUBRICATION, ROUGHNESS, CONTACT
  • Middle East Technical University Affiliated: Yes

Abstract

Shallow deep drawing process of a square cup is investigated in this paper. A combined friction model is introduced which integrates the Khonsari's friction model based on asperity contact and Wilson's friction model based on lubricant flow. A film thickness ratio of 0.035 is introduced for 0.15 mu m standard deviation of surface summits. Below the ratio of 0.035, Khonsari's model gives more accurate results since asperity friction is dominant. Above the ratio of 0.035, Wilson's model gives more accurate results since hydrodynamic friction is dominant.