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Combined Laser Beam Braze-Welding Process for Fluxless Al-Cu Connections
Solchenbach, Tobias; Plapper, Peter
2013In Dimitrov, Dimiter; Schutte, Corne (Eds.) PROCEDINGS International Conference on competitive Manufacturing, COMA 13
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Keywords :
Combined Laser Beam Brazing and Welding; Dissimilar Materials; Intermetallic Compounds
Abstract :
[en] A combined laser beam welding and brazing process for Al-Cu connections in overlap configuration is investigated. Aluminium and copper for electric and electronic application is used for experiments without surface treatment or activation, e.g. by flux. Although Al and Cu have been considered as “not weldable”, the possibility of a thermal joining process, i.e., the weld-brazing, was proved. The inevitable formation of intermetallic compounds at the interfacial region was reduced to less than 4 µm. Shear strength up to 51 MPa was achieved. A detailed fracture analysis has shown that the copper-rich intermetallic phase is the metallurgical weakest point due to the distinctive brittleness, even though the Al-rich Cu-phase is several times thicker.
Disciplines :
Mechanical engineering
Materials science & engineering
Identifiers :
UNILU:UL-CONFERENCE-2013-065
Author, co-author :
Solchenbach, Tobias ;  University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit
Plapper, Peter ;  University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit
External co-authors :
no
Language :
English
Title :
Combined Laser Beam Braze-Welding Process for Fluxless Al-Cu Connections
Publication date :
January 2013
Event name :
International Conference on Competitive Manufacturing (COMA)
Event organizer :
University of Stellenbosch; Deptartment of Industrial Engineering
Event place :
Stellenbosch, South Africa
Event date :
30.01.-01.02.2013
Audience :
International
Main work title :
PROCEDINGS International Conference on competitive Manufacturing, COMA 13
Editor :
Dimitrov, Dimiter
Schutte, Corne
ISBN/EAN :
978-0-7972-1405-7
Pages :
131-136
Peer reviewed :
Peer reviewed
Commentary :
INTERNATIONAL CONFERENCE ON COMPETITIVE MANUFACTURING
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since 11 February 2017

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