Study on Strength of Spot-Welded AL Alloy Joints (Part I)

Arrangement of Spor Welds and Satic Strength

Abstract

In the case of aircrafts etc., the use of spot-welded joints in primary structures is restricted. One of the reasons is that the effect of the design factor such as the spacing, number or arrangement of spot welds on the strength of joints has not been clarified. Due to this reason, the effect of the factor on the static strength of the multiple spot-welded Al alloy joints by MIL-Specification which widely used in aircrafts was studied.
As the result of this study, the relationship between the factor and the static strength of joints has been clarified, and a method of determining the strength of multiple spot-welded joints by the simple joints has been obtained.