And the effect of SPreading fusion of active flux on weld pool depth and arc phenomenon in A-TIG welding is also studied with properly experimental method.

采取适当的试验方法研究A- TIG焊活性剂对电弧现象及活性剂涂敷量对焊接熔深增加的作用。

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If the surface of the stir pin is smooth, the migration of interface in the thickness direction reduces, but the interface spreading to the weld is serious.

若搅拌针表面是光滑的，搭接界面在厚度方向上的迁移减小，但返回边界面向焊缝中心延伸的程度增大。

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