Welding of tailored blanks of different materials

Abstract

This paper treats welding of tailored blanks made of different materials. In general, fusion welding and welding with pressure, practically without fusion, are described. Fusion welding may be carried out with or without the addition of filler material. In Section 3, general characteristics of tailored blanks are described. In Section 4, MIG welding and laser welding of austenitic stainless steel with ferrite non-stainless steel are described. After welding, hardness of the welded joints was measured. The welded joints were subjected to deep drawing. At the end, conclusions are stated. Investigations have shown that tailored blanks of high-alloy stainless steel cannot be laser or TIG welded to those of low-alloyed ferrite steel without the addition of filler material. A suitable process and filler material should be selected. The purpose of the filler material is to compensate for the differences in chemical and physical properties of both materials.