کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
734287 | 893408 | 2007 | 10 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Dissimilar material joining using laser (aluminum to steel using zinc-based filler wire) Dissimilar material joining using laser (aluminum to steel using zinc-based filler wire)](/preview/png/734287.png)
Joining steel with aluminum involving the fusion of one or both materials is possible by laser beam welding technique. This paper describes a method, called laser braze welding, which is a suitable process to realize this structure. The main problem with thermal joining of steel/aluminum assembly with processes such as TIG or MIG is the formation of fragile intermetallic phases, which are detrimental to the mechanical performances of such joints. Braze welding permits a localized fusion of the materials resulting in a limitation on the growth of fragile phases. This article presents the results of a statistical approach for an overlap assembly configuration using a filler wire composed of 85% Zn and 15% Al. Tensile tests carried on these assemblies demonstrate a good performance of the joints. The fracture mechanisms of the joints are analyzed by a detailed characterization of the seams.
Journal: Optics & Laser Technology - Volume 39, Issue 3, April 2007, Pages 652–661