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本文从薄壁箱型长梁的结构入手,对箱型长梁在焊接中容易产生的焊接变形(包括扭曲变形和弯曲变形)进行了详细分析,确定了控制箱型梁焊接变形的措施,即在装配焊接中采取合理的焊接顺序,并且在焊接时根据箱型梁的焊接特点设置合适的反变形,通过这些行之有效的方法,最终使箱型梁的焊后变形能够满足产品的使用要求,并可以为以后同类型工件的焊接变形控制提供借鉴。
This paper starts from the structure of thin-walled box-type long girder, analyzes the welding deformation (including the twisting deformation and bending deformation) which is easy to occur in the welding of the box girder, and determines the measures to control the welding deformation of the box girder In the assembly of welding to take a reasonable order of welding and welding in accordance with the box beam characteristics of the appropriate set of anti-deformation, through these effective ways to eventually make the box beam deformation after welding to meet the requirements of the product , And can provide reference for the welding deformation control of the same type of workpiece in the future.