Effects of interlayer on the friction stir spot welding of stainless steel
Type :
Article
Publication Status :
Published
Access :
restrictedAccess
Abstract
Comparison of Interlayer Friction Stir Spot Welding (IL-FSSW) and conventional Friction Stir Spot Welding (FSSW) of 304 stainless steel is presented in this study. IL-FSSW is introduced as a novel spot-welding technique to avoid the keyhole formation at the weld spot. This process is employed to fabricate a joint between two stainless steel sheets. The utilization of an interlayer material prevents the occurrence of keyhole without any additional post-process treatment. In addition, the interlayer material also enhances ductility and provides a joint with a maximum lap shear load of 7 kN. The micrographs of the weld zone cross-section were recorded and it was observed that the interlayer material played a significant role in the development of the nugget zone by supporting the formation of a hook structure.
Source :
Materials Today: Proceedings
Date :
2022-01
Volume :
62
Publisher :
Elsevier
URI
http://hdl.handle.net/10679/8690https://www.sciencedirect.com/science/article/pii/S2214785322029741
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