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研究了热变形对激光深熔焊焊缝表面形状的影响。从热变形的角度定性分析了焊缝表面突起的形成过程。用５ｋＷＣＯ２激光器进行对照焊接实验，实验结果与理论分析基本符合
The effect of hot deformation on the surface shape of laser deep penetration welds was studied. From the perspective of thermal deformation, the formation process of weld surface protrusion was qualitatively analyzed. 5kWCO2 laser welding control experiment, the experimental results and theoretical analysis basically in line