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在铁道车辆钢结构的焊接施工中,用迄今为止的处理方法来防止焊接变形是很困难的。焊接变形不仅严重影响外观,而且有损于强度和产品精度。因此,在焊接施工中防止焊接变形的方法和消除已产生的焊接变形是很重要的。迄今为止,尽管铁道车辆制造厂和造船工厂一直在进行防止焊接变形方法的改进,但现在仍没有较好的防止焊接变形的方法,采用所,谓局部加热急冷法来消除焊接变形需要很多的工时。本文介绍了消除铁道车辆钢结构用冲压型材(t4.5～3.2mm)与
In the welding of steel structure of railway vehicles, it is very difficult to prevent the welding deformation by using the processing method hitherto. Welding deformation not only seriously affect the appearance, but also detrimental to the strength and product accuracy. Therefore, it is important that the method of preventing the welding from being deformed during the welding operation and eliminating the welding distortion that has already occurred. Until now, although railway vehicle manufacturers and shipbuilders have been making improvements to prevent welding deformation, there is still no better way to prevent welding deformation. According to the method, local heating and quenching methods require a lot of man-hours to eliminate welding deformation . This article describes the elimination of rail vehicles with steel profiles stamping profiles (t4.5 ~ 3.2mm) and