A compression-torsion-wear-test achieving contact pressures of up to eight times the initial flow stress of soft aluminium. Issue 1 (2015)

• Record Type: Journal Article
• Authors: Teller, Marco; Bambach, Markus; Hirt, Gerhard
• Is Part Of: CIRP annals. Volume 64:Issue 1(2015)
• Page Start: 289
• Page End: 292
• Publication Date: 2015
• Subjects: Production engineering -- Research -- Periodicals; 670.5
• DOI: 10.1016/j.cirp.2015.04.086
• Languages: English
• ISSNs: 0007-8506

Abstract

<abstract abstract-type="author" id="abs0005"> <title id="sect0005">Abstract</title> <sec> <p id="spar0005">Different experiments exist for the characterization of friction and wear in metal forming, which try to reproduce the tribological conditions of the forming process as precisely as possible. A particular challenge arises from processes such as cold extrusion, with contact stresses that are several times higher than the initial flow stress of the workpiece material. In this paper, a new experimental setup for wear testing is presented and compared with available tests concerning contact pressure, surface enlargement and sliding velocity. Using a special encapsulation of the specimen, the newly developed compression-torsion-wear-test is able to scale the contact pressure to a multiple of the initial flow stress of soft aluminium.</p> </sec> </abstract>