2A12铝合金焊接接头塑性提高的研究

Study on the Improvement of Plasticity of 2A12 Aluminum Alloy Welded Joint

对2A12铝合金用钨极氩弧焊焊接,分析了不同焊丝ER4043和ER5087对焊接接头的抗拉强度和延伸率的影响。结果表明:两种焊丝的焊接接头的抗拉强度都能达到母材的50%以上,与ER4043焊丝相比,ER5087焊丝的接头抗拉强度和延伸率更高,强度和塑性都有很大的提高。

The effect of ER4043 and ER5087 welding wires on the tensile strength and elongation of 2A12 aluminum alloy was analyzed.The results show that the tensile strength of the two welding wires can reach more than 50%of the base metal.Compared with ER4043 welding wire,ER5087 welding wire has higher tensile strength and elongation,and strength and plasticity.