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In this article results of studies on cracks formation susceptibility in braze-welded joints of thin aluminum sheets and doublesided zinc galvanized steel sheets for car body parts made by laser… Click to show full abstract
In this article results of studies on cracks formation susceptibility in braze-welded joints of thin aluminum sheets and doublesided zinc galvanized steel sheets for car body parts made by laser brazing with high power diode laser ROFIN DL 020 and CMT MIG-brazing, with filler material in form of powder and wire accordingly, were presented. Optimal welding parameters were determined by visual acceptance criteria. On joints made with optimal parameters further examinations were carried. Results of macroand microscopic metallographic examinations, structural roentgenography, EDS microanalysis and hardness tests were presented. Causes of brittle intermetallic Fe-Al phases formation in Al-matrix filler metal in dissimilar aluminum – zinc plated carbon steel joints were pointed.
Journal Title: Archives of Metallurgy and Materials
Year Published: 2017
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