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Prediction of the evolution of the surface roughness in dependence of the lubrication system for cold forming processes

Groche, Peter and Kramer, Philipp and Zang, Sebastian and Rezanov, Vladimir (2015):
Prediction of the evolution of the surface roughness in dependence of the lubrication system for cold forming processes.
In: Tribology Letters, pp. 1-9, 59:9, ISSN 1023-8883, [Article]

Abstract

Lubricants for cold forging operations do not only enable a reliable forging process, but also affect the results of forging processes. A sound lubrication decreases the occurring forces and may result in a smooth specimen surface. However, some lubricants are known to increase the initial surface roughness of the specimen as a consequence of the forming. Therefore, the decision which lubricant should be used is of special interest for near-net shape operations. The paper at hand presents the results of a finite element investigation of the first stage of an industrial rod extrusion process which was investigated with two different lubrication systems. The numerical investigations focus on a reliable prediction of the development of the surface roughness in due consideration of the lubricant.

Item Type: Article
Erschienen: 2015
Creators: Groche, Peter and Kramer, Philipp and Zang, Sebastian and Rezanov, Vladimir
Title: Prediction of the evolution of the surface roughness in dependence of the lubrication system for cold forming processes
Language: English
Abstract:

Lubricants for cold forging operations do not only enable a reliable forging process, but also affect the results of forging processes. A sound lubrication decreases the occurring forces and may result in a smooth specimen surface. However, some lubricants are known to increase the initial surface roughness of the specimen as a consequence of the forming. Therefore, the decision which lubricant should be used is of special interest for near-net shape operations. The paper at hand presents the results of a finite element investigation of the first stage of an industrial rod extrusion process which was investigated with two different lubrication systems. The numerical investigations focus on a reliable prediction of the development of the surface roughness in due consideration of the lubricant.

Journal or Publication Title: Tribology Letters
Volume: 59:9
Uncontrolled Keywords: Surface roughness; Cold forging; Rod extrusion, FEA, Sliding compression test, Lubrication system
Divisions: 16 Department of Mechanical Engineering
16 Department of Mechanical Engineering > Institut für Produktionstechnik und Umformmaschinen (PtU)
Date Deposited: 23 Mar 2016 06:34
Identification Number: doi:10.1007/s11249-015-0535-0
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