Reference : Combined Laser Beam Braze-Welding Process for Fluxless Al-Cu Connections
Scientific congresses, symposiums and conference proceedings : Paper published in a book
Engineering, computing & technology : Materials science & engineering
Engineering, computing & technology : Mechanical engineering
http://hdl.handle.net/10993/29801
Combined Laser Beam Braze-Welding Process for Fluxless Al-Cu Connections
English
Solchenbach, Tobias mailto [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit >]
Plapper, Peter mailto [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit >]
Jan-2013
PROCEDINGS International Conference on competitive Manufacturing, COMA 13
Dimitrov, Dimiter mailto
Schutte, Corne mailto
131-136
Yes
International
978-0-7972-1405-7
International Conference on Competitive Manufacturing (COMA)
30.01.-01.02.2013
University of Stellenbosch; Deptartment of Industrial Engineering
Stellenbosch
South Africa
[en] Combined Laser Beam Brazing and Welding ; Dissimilar Materials ; Intermetallic Compounds
[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.
http://hdl.handle.net/10993/29801
INTERNATIONAL CONFERENCE ON COMPETITIVE MANUFACTURING

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