Abstract
The effects of multiple spot weld distribution on the mechanical properties of products manufactured by resistance spot welding of aluminium alloy AA5754 have been investigated. In addition to mechanical tests, finite element analysis was also carried out in order to develop a model for predicting the effects of different types of spot weld distribution patterns on the mechanical performance of resistance spot-welded structures. The results of experimental and simulation work for two-spot welds showed that the tensile strength and fatigue resistance of spot welded structures were better when both spot welds were in line with the principal stress direction. In the case of four-spot welds, a diamond-shaped configuration performed better than a square-shaped spot weld distribution. In this paper, the array of spot welds on a panel is described as a lattice in which the “unit cell” of each array is either a square shape or a diamond shape. This paper proposes that the most efficient configuration for multiple spot welds on a structure is a series of equally-spaced spot welds with a diamond shaped “unit cell” in which one of the diagonals of the “unit cell” is oriented parallel to the principal stress direction.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
