Slider on Sheet Tester Development for Characterizing Galling

Abstract:

The overwhelming majority of automotive part manufacturing processes successfully process hot dip galvanized sheet metal. However, there were reported situations were abrasive wear (galling), visible as narrow and long scratches, was observed on the surface of the formed parts. Investigations using a Slider On Sheet Tester (SOST) were performed in order to determine the conditions that lead to scratch forming on the galvanized sheet metal surface and to identify parameters that would guarantee a scratch free situation. The tests identified the tool roughness and the contact pressure as important parameters governing the coating wear phenomena. The tests proved that the coating resists relative high contact conditions in case of smooth tool surface, explaining why in the large majority of the industrial applications coated materials can be used without issues.

• Periodical: Key Engineering Materials (Volume 926)
• Pages: 1204-1210
• DOI: https://doi.org/10.4028/p-uii69m
• Online since: July 2022
• Authors: Jenny Venema*, Frank Korver, Toni Chezan
• Keywords: Automotive, Friction, Galling, Tribology, Wear, Zinc Coatings

References

[1] vd Heide, E. (2002). Lubricant failure in sheet metal forming processes. Enschede: University of Twente. ISBN90-365-1724-9.

[2] Dane, C. M. & van der Heide, E., 2004, Proceedings of the IDDRG '04 Conference. Sindelfingen, Germany, pp.182-191.

[3] W. Wang et al. A study on galling initiation in friction coupling stretch bending with advanced high strength hot-dip galvanized sheet. Wear 328-329 (2015) 286–294 http://dx.doi.org/10.1016/j.wear.2015.02.058.

DOI: 10.1016/j.wear.2015.02.058

[4] Budinski, K.G. & Budinski, S.T. Interpretation of galling tests. Wear 332-333 (2015) 1185-1192 https://doi.org/10.1016/j.wear.2015.01.022.

DOI: 10.1016/j.wear.2015.01.022

[5] H.Kim et al., Investigation of galling in forming galvanized advanced high strength steels (AHSSs) using the twist compression test (TCT), Journal of Materials Processing Technology, volume 205, issues 1-3 (2008) 459-468 https://doi.org/10.1016/j.jmatprotec.2007.11.281.

DOI: 10.1016/j.jmatprotec.2007.11.281

[6] vd Heide, E, Huis in 't Veld, AJ, Schipper, DJ. The effect of lubricant selection on galling in a model wear test. Wear 251 (2001) 973-979.

DOI: 10.1016/s0043-1648(01)00761-x

[7] Schedin, E. Galling mechanisms in sheet forming operations. Wear 179 (1994) 123-128 https://doi.org/10.1016/0043-1648(94)90229-1.

DOI: 10.1016/0043-1648(94)90229-1