Tribology Letters

, Volume 33, Issue 1, pp 45–53

Wear Mechanisms in Galling: Cold Work Tool Materials Sliding Against High-strength Carbon Steel Sheets

Original Paper

DOI: 10.1007/s11249-008-9390-6

Cite this article as:
Gåård, A., Krakhmalev, P. & Bergström, J. Tribol Lett (2009) 33: 45. doi:10.1007/s11249-008-9390-6

Abstract

Transfer and accumulation of adhered sheet material, generally referred to as galling, is the major cause for tool failure in sheet metal forming. In this study, the galling resistances of several tool steels were evaluated against dual-phase high-strength carbon steel using a SOFS tribometer, in which disc-shaped tools were slid against a real sheet surface in dry sliding test conditions. Three different frictional regimes were identified and characterized during sliding, and any transition in friction corresponded to a transition in wear mechanisms of the sheets. The performance of the tools depended on load, material and the particular frictional regime. Best overall performance was obtained by nitrogen-alloyed powder metallurgy tool steel.

Keywords

Adhesion Friction Galling Wear mechanisms 

Copyright information

© Springer Science+Business Media, LLC 2008

Authors and Affiliations

  1. 1.Department of Mechanical and Materials EngineeringKarlstad UniversityKarlstadSweden

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