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This passage analyzes the law of the effects which welding process factors have on weld shaping.
焊接工艺因素的改变会引起焊缝尺寸和形状的变化，进而影响焊接质量。
The results show that increasing laser power is more beneficial to the increase of maximum welding speed and the effect of the welding parameters on the weld shaping is evident.
结果表明：激光功率的增加更有利于最大焊接速度的提高，只有合理的工艺参数组合才能取得良好的焊缝成形。
Experimental results showed that reasonable defocusing value should be adopted in order to get better weld seam shaping quality.
结果表明：只有采用合适的离焦量，才有可能获得较好的焊缝成形质量。
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