5083H111 aluminum alloy with MIG welding under different environmental tempretures was welded. The hardness and mechanical properties of the welded joints was analyzed, the distribution of the micro-zone performance of aluminum welded joints with micro-zone shear test was studied and built the relationships with the conventional mechanical properties. The results show that the different temperatures welded joints' weakest part of the mechanical properties is the center of the weld. The mechanical properties...
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