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Abstract
Offering the advantages of lightweight and high specific strength, magnesium (Mg) alloys are extensively used in the manufacture of automotive parts and light-gauge box-type products, such as laptop computers, mobile phones, etc, which are expected to see lighter-weight applications in future. Presently available Mg alloy products, however, are manufactured by molten or semi-molten working in diecasting or thixomoulding processes, with applications technology currently at the development stage. Suitable techniques for the further development of Mg alloy manufacturing technology include plastic working of wrought alloys and assembly of products with complex shapes by welding. This study focuses on TIG welding as a widely practised and convenient technique for assembly of general metal products. The article examines the basic welding characteristics of an Mg alloy equivalent to AZ31 as an Mg alloy in widespread practical use together with the deformation properties of the proposed alloy. A suitable welding procedure is then investigated. Also discussed is an assembly method for products in consideration of the working and welding characteristics of the proposed alloy.