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首页> 外文期刊>The International Journal of Advanced Manufacturing Technology >Double-sided hybrid laser-MIG welding plus MIG welding of 30-mm-thick aluminium alloy
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Double-sided hybrid laser-MIG welding plus MIG welding of 30-mm-thick aluminium alloy

机译：双面混合激光MIG焊接加30mm厚铝合金的MIG焊接

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摘要

Hybrid laser-MIG (metal inert gas) welding has not been extensively applied in welding of aluminium alloy with thickness more than 10 mm because of the existence of weld defects and low joint strength. In this study, an original hybrid laser-MIG welding plus MIG welding process was developed. Double-sided hybrid laser-MIG welding method was designed and applied to the welding of 30-mm-thick Al 5083 alloy. The process was then optimized by overlaying a MIG welding upon the weld. Analysis on the weld revealed that the overlaid MIG welding played multiple roles, including making up the bead formations, eliminating the keyhole-induced porosities as well as refining grains. Along the longitudinal direction of the weld, the grains became finer from two fringes to the middle, and the mechanical properties improved accordingly. Compared with MIG welding, the hybrid laser-MIG welding plus MIG welding process showed overwhelming superiorities over the MIG welding, which will be promising in industrial applications.
机译：杂交激光器（金属惰性气体）焊接在铝合金焊接厚度超过10毫米的焊接时，由于存在焊接缺陷和低关节强度，焊接厚度超过10毫米。在该研究中，开发了原始的混合激光焊接加mIG焊接工艺。设计并施加了双面混合激光焊接方法并施加到30mm厚的Al 5083合金的焊接。然后通过将MIG焊接覆盖在焊缝上来优化该过程。焊缝的分析显示，覆盖的MIG焊接发挥了多种作用，包括构成珠子形成，消除钥匙孔诱导的孔隙率以及精炼颗粒。沿着焊缝的纵向方向，晶粒从两个条纹到中间变得更精细，并且机械性能相应地改善。与MIG焊接相比，杂交激光MIG焊接加MIG焊接工艺显示出在MIG焊接上的压倒性优势，这将在工业应用中具有很大的前景。

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