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Evaluation of the potential of tool materials for the cold forming of advanced high strength steels

Groche, Peter and Christiany, Matthias (2013):
Evaluation of the potential of tool materials for the cold forming of advanced high strength steels.
In: Wear, Elsevier, pp. 1279-1285, 302, ISSN 0043-1648, [Article]

Abstract

The increasing relevance of lightweight design intensifies the use of advanced high strength steels (AHSS). However, the use of AHSS causes higher stresses on the forming tools, thus reducing tool life and making it impossible to achieve the aspired process reliability. Since there is no reliable information on the wear behavior of tool materials for the forming of AHSS, this study aims to investigate wear and wear development of different tool materials. For this purpose, a strip drawing test with drawbead geometry is used as a model test. Continuous measurements of forces, temperatures of tool and sheet metal, and the roughness of sheet metal allow accurate and detailed analyses of wear. The investigation shows distinct differences in wear resistance of the tested tool materials and reveals characteristic wear development. Furthermore, the results of this study broaden knowledge on dependencies between tool wear, process temperature, and surface changes.

Item Type: Article
Erschienen: 2013
Creators: Groche, Peter and Christiany, Matthias
Title: Evaluation of the potential of tool materials for the cold forming of advanced high strength steels
Language: English
Abstract:

The increasing relevance of lightweight design intensifies the use of advanced high strength steels (AHSS). However, the use of AHSS causes higher stresses on the forming tools, thus reducing tool life and making it impossible to achieve the aspired process reliability. Since there is no reliable information on the wear behavior of tool materials for the forming of AHSS, this study aims to investigate wear and wear development of different tool materials. For this purpose, a strip drawing test with drawbead geometry is used as a model test. Continuous measurements of forces, temperatures of tool and sheet metal, and the roughness of sheet metal allow accurate and detailed analyses of wear. The investigation shows distinct differences in wear resistance of the tested tool materials and reveals characteristic wear development. Furthermore, the results of this study broaden knowledge on dependencies between tool wear, process temperature, and surface changes.

Journal or Publication Title: Wear
Volume: 302
Publisher: Elsevier
Uncontrolled Keywords: Advanced high strength steel, Tool life, Wear development, Process parameters
Divisions: 16 Department of Mechanical Engineering
16 Department of Mechanical Engineering > Institut für Produktionstechnik und Umformmaschinen (PtU)
Date Deposited: 12 Dec 2013 10:03
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