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Combined Welding-Brazing Process for Joining AluminumSteel-Tailored Blanks with High Power Laser Sources
Technical Paper
2002-01-2009
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The use of high power laser sources (CO2) enables the joining of aluminum and zinc-coated steel sheets in butt configuration, using a combined welding-brazing process. Comparable to conventional thermal joining technologies, like resistance spot welding, intermetallic phases are formed in the contact zone leading to a decrease of the mechanical properties of the joint. With locally restricted energy input and high joining speeds the formation of these phases can be minimized to a none critical level. For the characterization of the seam morphology optical, X-ray and electron microscopy examinations have been carried out, demonstrating a phase layer thickness of about 2 μm. In mechanical tests, fracture stresses of 144 N/mm2 have been achieved.
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Authors
Citation
Kreimeyer, M., Wagner, F., Sepold, G., Joly, M. et al., "Combined Welding-Brazing Process for Joining AluminumSteel-Tailored Blanks with High Power Laser Sources," SAE Technical Paper 2002-01-2009, 2002, https://doi.org/10.4271/2002-01-2009.Also In
References
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