Cold Metal Transfer Plug Welding of Aluminum AA6061-T6-to-Bare Mild Steel
Cold Metal Transfer Plug Welding of Aluminum AA6061-T6-to-Bare Mild Steel
复制标题
铝 AA6061-T6 与裸低碳钢的冷金属转换塞焊
DOI：
10.1115/1.4033040
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发表时间：
2016-08
期刊：
影响因子：
--
通讯作者：
Wang, Pei-Chung
中科院分区：
文献类型：
--
作者：
Ai, B. Q.;Lin, Q.;Chen, J. H.;Wang, Pei-Chung
众所周知，采用冷金属过渡（CMT）工艺连接搭接铝和裸钢是具有挑战性的，因为形成了显著的脆性金属间化合物。在这项研究中，进行了另一种尝试，连接铝AA 6061-T6和裸低碳钢CMT塞焊。进行了焊接试验，并系统地表征了CMT塞焊接头的结合机理、断裂模式和强度。结果发现，将1 mm厚的裸低碳钢连接到1 mm厚的铝AA 6061-T6是可行的。材料堆叠顺序和预钻孔的存在显著影响CMT塞焊裸低碳钢到铝AA 6061-T6的可焊性。通过在顶部铝AA 6061-T6上预钻孔定位裸钢，并将焊炬对准8 mm孔的中心，显著改善了焊缝外观和接头强度。
It was known that it is challenging to join lapped aluminum and bare steel with cold metal transfer (CMT) process because of the formation of significant brittle intermetallics. In this study, another attempt was made to join aluminum AA6061-T6 and bare mild steel with CMT plug welding. Welding tests were performed and the bonding mechanisms, fracture modes, and strengths of CMT plug welded joints were systematically characterized. It was found that it is feasible to join 1 mm thick bare mild steel-to-1 mm thick aluminum AA6061-T6. The material stacking sequence and the presence of a predrilled hole significantly affected the weldability of CMT plug welding bare mild steel-to-aluminum AA6061-T6. By positioning bare steel with a predrilled hole in the top aluminum AA6061-T6 and aligning a torch in the center of an 8 mm hole improved significantly the weld appearance and joint strength.
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发表时间：
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影响因子：
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