低碳钢A-TIG焊接方法的试验研究_焊接人社区 关键词： A-TIG 焊接熔深 活性剂 电弧收缩 表面张力 [gap=733]Keywords: A-TIG, Weld penetration, Activating flux, Arc constriction, Surface tension
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The model describing the metal vapor recoiled from the keyhole is established with fluid mechanics analysis software Fluent. The variation of the feature zone on the keyhole in different weld penetration depth is investigated by numerical simulating.
采用流体力学分析软件Fluent建立了电子束匙孔反冲金属蒸气模型,分析了不同的焊接熔深时匙孔上方的特征区域变化情况,利用此模拟结果对高强Al-Cu合金电子束焊接过程图像的特征区域进行了理论阐述。
参考来源 - 高强铝合金电子束焊接焊缝成形质量研究·2,447,543篇论文数据，部分数据来源于NoteExpress
并得到了焊接熔深H与输入线能量W的数学表达式。
The formula of the relation of penetration H and specific energy input W is gotten.
激光焊接过程中产生的等离子体对激光束有屏蔽作用，降低了焊接熔深，甚至出现缺陷。
Plasma produced in laser welding process has shielding effect to the laser beam and decreases the melting depth on even result in the defect.
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。
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.
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