Lubricant Film Breakdown and Material Pick-Up in Sheet Forming of Advanced High Strength Steels and Stainless Steels when Using Environmental Friendly Lubricants

Ermanno Ceron, M. Olsson, Niels Bay

Research output: Contribution to journalConference articleResearchpeer-review

Abstract

Increasing focus on environmental issues in industrial production has urged sheet metal stamping companies to look for new tribo-systems in order to substitute hazardous lubricants such as chlorinated paraffin oils. The efficiency of chlorinated paraffin is due to the fact that the lubricant reacts chemically with the tool and workpiece material forming thin films, which adhere strongly to the surfaces and reduce the tendency to metal-metal contact and material pick-up. Production tests of new, environmentally benign tribo-systems are, however, costly and laboratory tests are preferred as a preliminary simulative method to investigate alternative tribo-systems. The present paper presents a case study where an industrial process, consisting of deep drawing with two subsequent re-drawings, was selected and four potential new tribo-systems were tested including different workpiece materials, i.e. AHSSs and stainless steels. The performance of the tribo-systems was analyzed in the laboratory by means of a newly developed simulative test as well as in an industrial production process. The results obtained show a good agreement between the laboratory test and the industrial production process regarding the tribological performance, i.e. tendency to material pick-up and galling, of the evaluated tribo-systems. Moreover the SEM analysis shows that different workpiece materials result in different types of material pick-up.
Original languageEnglish
JournalAdvanced Materials Research
Volume966-967
Pages (from-to)219-227
ISSN1022-6680
DOIs
Publication statusPublished - 2014
Event6th International Conference on Tribology in Manufacturing Processes & Joining by Plastic Deformation - Darmstadt, Germany
Duration: 22 Jun 201424 Jun 2014
Conference number: 6
http://www.ictmp2014.com/

Conference

Conference6th International Conference on Tribology in Manufacturing Processes & Joining by Plastic Deformation
Number6
CountryGermany
CityDarmstadt
Period22/06/201424/06/2014
Internet address

Keywords

  • Sheet Metal Forming
  • Galling
  • Lubricant Film Breakdown

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