Control method of welding deformation

Abstract

The embodiment of the invention relates to the technical field of railway vehicles, in particular to a control method of welding deformation. The Control method of welding deformation comprises the following steps of acquiring inherent strain of a welded joint; applying the inherent strain to a weld joint of the welded joint; carrying out analogue simulation to welding of the welded joint to obtain welding deformation of the welded joint; and arranging anti-deformation for controlling generation of the welding deformation. The control method can calculate the welding deformation quickly and accurately, improves the calculating efficiency of the welding deformation, provides a theoretical ground to achieve anti-deformation of welding, improves the welding assembling accuracy and solves theproblem of inability to assemble and change of design in an existing vehicle body assembling process, thereby further improving the product quality and lowering the product development cost.

Description

technical field [0001] The present application relates to the technical field of rail vehicles, in particular, to a method for controlling welding deformation. Background technique [0002] During the manufacturing process of the rail vehicle body, deviation sources such as part manufacturing deviation, fixture positioning deviation, and welding deformation will affect the assembly quality of the car body. However, the welding deformation is not considered in the manufacturing process of the existing car body The impact on the car body makes the welding and assembly accuracy of the car body poor, which leads to the "unable to assemble" situation in the car body due to welding deformation during the assembly process and the problem of design changes in the trial production stage of the product, which in turn affects product quality and Increase product development costs. Contents of the invention [0003] The embodiment of the present application provides a welding deforma...

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Problems solved by technology

[0003] The embodiment of the present application provides a welding deformation control method, which introduces the inherent strain of the welded joint into the calculation model, can quickly and accurately calculate the welding deformation, improves the calculation efficiency of the welding deformation, and provides Anti-deformation provides a theoretical basis, improves the accuracy of welding assembly, and solves the problems of "failure to assemble" and design changes that are prone to occur in the existing car body assembly process, thereby improving product quality and reducing product development costs

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