Local Mechanical Property Simulation and Analysis of Aluminum Alloy Welded Joint with Different Welding Processes

Abstract

In this paper, the mechanical performance of welded steel joints under different heat treatment methods is studied. Through experiments and finite element analysis, the vulnerable parts are found out. In this paper, the mechanical properties of welded joints of 5A06 aluminum alloy under different processing conditions, including tensile strength and fatigue strength, were studied, and the P-S-N curve of welded joints was drawn based on the test data.In addition, the effect of repair welding on the mechanical properties of the welded joint was studied by tensile test, fatigue test and fatigue fracture morphology analysis.