Influence from tool roughness on the risk of work material adhesion and transfer
2008 (English)Conference paper, Abstract (Refereed)
Influence from surface roughness of a forming tool surface on its ability to pick up work material was investigated by laboratory testing. One powder metallurgical tool steel was given different surface roughnesses and tested in sliding contact against one austenitic stainless steel (SS) and one aluminium alloy (Al). Generally, the risk of work material adhesion and transfer increased with the roughness of the tool material. However, SS gave a low friction and very little metal transfer for a tool roughness of the order of the relatively soft SS oxide thickness. The Al alloy, on the other hand, which oxide is much harder than the parent metal, has no critical surface roughness below which adhesive transfer will not occur. The oxide fractures and oxide fragments indent the tool surface increasing the risk of adhesion.
Place, publisher, year, edition, pages
2008. no 7-8
Aluminium, Aluminium alloys, Austenitic stainless steel, Dry sliding, Forming, Friction, Galling, Laboratory testing, Microscopy, Tool, Tool material, Tool roughness, Work material, Work material adhesion
Engineering and Technology
IdentifiersURN: urn:nbn:se:uu:diva-285993OAI: oai:DiVA.org:uu-285993DiVA: diva2:921403