The invention is used for automatic air gouging back gouging of the straight welding line and the girth welding line of the large cylindrical welding structure.

本发明用于大型圆筒形焊接结构的直焊缝和环行焊缝自动气刨清根。

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The vertical feed fly saw, equiped on most straight welding pipe sets, can not be suitable to cut square shaped pipes because of serious deformation on the cut face.

当前一些直缝焊管机组所配备的垂直进锯型飞锯因易造成切断端面严重变形，不适合锯切正位生产的方矩型类管材。

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At the same time, analyze the welding deformation of straight-line segment model of side rail, and compare the results with test data, verify this method is efficient.

同时，针对汽车纵梁部分直线段模型进行焊接变形分析，并与试验数据进行了对比，验证了该方法的有效性。

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