Simulative testing of friction and lubrication in cold forging of steel and aluminum

Ermanno Ceron*, Niels Bay, Tetsuo Aida, Kuniaki Dohda, Tor Erik Nicolaisen

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Scopus citations

Abstract

A new, simulative test of friction and lubrication in cold forging is developed by the authors. The test is based on a backward can extrusion process in which the workpiece rotates relatively to the conical punch. An analytical model is presented determining the friction stress from the measured torque during testing combined with an analysis of the sliding velocity distribution along the punch nose. The latter is determined by FE analysis of the test. Results show friction stress for unalloyed low C-steel provided with different types of lubricants, i.e. phosphate coating plus soap, phosphate coating plus MoS2 and single bathe lubrication with PULS and aluminum provided with 6 different lubricant systems. The new test is so severe, that it is possible to break down the best lubrication systems for cold forging of steel and aluminum.

Original languageEnglish (US)
Title of host publication40th North American Manufacturing Research Conference 2012 - Transactions of the North American Manufacturing Research Institution of SME
Pages287-296
Number of pages10
Volume40
StatePublished - Nov 28 2012
Event40th Annual North American Manufacturing Research Conference, NAMRC40 - Notre Dame, IN, United States
Duration: Jun 4 2012Jun 8 2012

Other

Other40th Annual North American Manufacturing Research Conference, NAMRC40
CountryUnited States
CityNotre Dame, IN
Period6/4/126/8/12

Keywords

  • Backward can extrusion
  • Cold forging
  • Friction
  • Limits of lubrication

ASJC Scopus subject areas

  • Industrial and Manufacturing Engineering
  • Mechanical Engineering

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