Challenges in Joining Aluminium with Copper for Applications in Electro Mobility

Joerg Kaspar; M. Zimmermann; A. Ostwaldt; G. Goebel; J. Standfuß; B. Brenner

doi:10.4028/www.scientific.net/MSF.783-786.1747

Paper Titles

Fabrication of Al6061-AMC by Adding Copper-Coated SiC Reinforcement by Friction Stir Processing (FSP)
p.1721

Friction Stir Welding of Al Alloys: Analysis through a Multi-Objective Optimization Tool
p.1729

Effect of Friction Stir Processing on Microstructure and Mechanical Properties of a HPDC Magnesium Alloy
p.1735

Influence of Galvanized Coatings on Abrasion Circle Friction Stir Spot Welding Aluminium to Steel for Automotive Applications
p.1741

Challenges in Joining Aluminium with Copper for Applications in Electro Mobility
p.1747

Friction Stir Welding of Carbon Steel for Application in Used Fuel Containers
p.1753

Friction Stir Welding of Line-Pipe Steels
p.1759

Numerical Simulation Model for FSW Employing Particle Method – Effect of Tool Angle on Fluid Motion
p.1765

Assessment of the Advantages of Static Shoulder FSW for Joining Aluminium Aerospace Alloys
p.1770

HomeMaterials Science ForumMaterials Science Forum Vols. 783-786Challenges in Joining Aluminium with Copper for...

Challenges in Joining Aluminium with Copper for Applications in Electro Mobility

Abstract:

The effective joining of aluminium with copper is one of the central technical goals involved in electro mobility. However, the joining of both metals by conventional fusion welding is challenging because of poor weldability arising from different chemical, mechanical and thermal properties of the materials and especially from the massive formation of hard and brittle intermetallic compounds (IMC) weld interface. In order to accomplish the difficult task of joining aluminium and copper several new joining technologies and strategies such as Laser Beam Welding (LBW) using highly dynamic beam deflection, Friction Stir Welding (FSW), Laser Induction Roll Plating (LIRP) and Electromagnetic Pulse Welding (EMPW) are under development at the Fraunhofer IWS. The current work describes the different technological approaches to the dissimilar joining of aluminium and copper. Thereby, the different joining technologies are compared with respect to weld quality. Special consideration is given to the study of interface morphology and microstructure of the welding zone. It will be shown that, depending on the joining method chosen the kind and extension of intermetallic phase formation differs considerably. Conclusions are drawn with respect to the applicability of the different joining methods.

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Periodical:

Materials Science Forum (Volumes 783-786)

Pages:

1747-1752

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.783-786.1747

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Online since:

May 2014

Authors:

Joerg Kaspar*, M. Zimmermann, A. Ostwaldt, G. Goebel, J. Standfuß, B. Brenner

Keywords:

Aluminum (Al), Copper, Dissimilar Alloy Welding, Intermetallic Phase, Laser Processing

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