In this investigation, dissimilar 5754/7075 and 7075/5754 spot friction welds were first made under different processing conditions. The spot friction welds in lap-shear specimens were tested under quasi-static loading conditions. The optimal processing times to maximize the failure loads of the 5754/7075 and 7075/5754 welds under lap-shear loading conditions are identified. The maximum failure load of the 7075/5754 welds is about 40% larger than that of the 5754/7075 welds. Optical micrographs of both types of spot friction welds made at different processing times before and after failure are examined. The micrographs show different weld geometries and different failure modes of spot friction welds made at different processing times. The failure modes of the 5754/7075 and 7075/5754 spot friction welds appear to be quite complex and strongly depend on the geometry and the strength of the interfacial surface between the two deformed sheet materials.
Effects of Processing Time on Strengths and Failure Modes of Dissimilar 5754/7075 and 7075/5754 Spot Friction Welds in Lap-Shear Specimens
Sae Technical Papers
SAE World Congress & Exhibition ; 2008
2008-04-14
Conference paper
English
Fatigue Behavior of Dissimilar 5754/7075 and 7075/5754 Spot Friction Welds in Lap-Shear Specimens
SAE Technical Papers | 2010
|Fatigue behaviors of aluminum 5754-O spot friction welds in lap-shear specimens
Automotive engineering | 2008
|Fatigue Behaviors of Aluminum 5754-O Spot Friction Welds in Lap-Shear Specimens
SAE Technical Papers | 2008
|SAE Technical Papers | 2005
|