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A novel method to investigate the principles of impact welding: Development and enhancement of a test rig, experimental and numerical results

Pabst, Christian and Sharafiev, Semen and Groche, Peter and Wagner, Martin F.-X. (2014):
A novel method to investigate the principles of impact welding: Development and enhancement of a test rig, experimental and numerical results.
In: Advanced Materials Research, pp. 500-509, 966-967, [Article]

Abstract

The two common processes of impact welding, explosion welding and electromagnetic pulse welding, may offer great technological advantages, but at the same time exhibit poor observability due to the use of explosives and a highly transient behavior, respectively. A novel test rig is developed and enhanced to collide and weld specimens purely mechanically. Besides its simple build-up and the easy and safe operation, the test rig allows setting crucial process parameters almost independently. The test rig’s construction and improvement is described. A trigger method for high speed imaging is developed and tested. The numerical simulation of the impact shows that the conditions directly at the welding zone are predictable and can be adjusted accurately. Finally, the preparation of specimens to evaluate the influence of surface roughness and grain structure is discussed.

Item Type: Article
Erschienen: 2014
Creators: Pabst, Christian and Sharafiev, Semen and Groche, Peter and Wagner, Martin F.-X.
Title: A novel method to investigate the principles of impact welding: Development and enhancement of a test rig, experimental and numerical results
Language: German
Abstract:

The two common processes of impact welding, explosion welding and electromagnetic pulse welding, may offer great technological advantages, but at the same time exhibit poor observability due to the use of explosives and a highly transient behavior, respectively. A novel test rig is developed and enhanced to collide and weld specimens purely mechanically. Besides its simple build-up and the easy and safe operation, the test rig allows setting crucial process parameters almost independently. The test rig’s construction and improvement is described. A trigger method for high speed imaging is developed and tested. The numerical simulation of the impact shows that the conditions directly at the welding zone are predictable and can be adjusted accurately. Finally, the preparation of specimens to evaluate the influence of surface roughness and grain structure is discussed.

Journal or Publication Title: Advanced Materials Research
Volume: 966-967
Uncontrolled Keywords: Impact Welding, Test rig
Divisions: 16 Department of Mechanical Engineering
16 Department of Mechanical Engineering > Institut für Produktionstechnik und Umformmaschinen (PtU)
Date Deposited: 22 Jul 2014 07:38
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