Method for welding thin plates with thick plates

Abstract

The invention discloses a method for welding thin plates with thick plates, and relates to the technical field of welding. The method comprises the following steps: fixing thin plates needed to be welded with positions needed to be welded of thick plates, flanging positions needed to be welded of the thin plates, wherein a flanging distance value is 2-4 times of that of the thin plates and the flanging angle is 30-90 degrees; preparing welding equipment and moving the flanging positions on the thin plates; attaching the flanging positions of the thin plates to the positions needed to be welded of the thick plates; welding the flanged edge positions through the welding equipment; and cooling for a certain time after welding, removing surface welding slag, checking welding integrity and finishing welding. Through the method, the problems that thermal stress generated by welding causes great overall deformation of products, the precision cannot be guaranteed, and the quality of welded seams is not easily guaranteed are solved; the influence of thermal stress on the overall deformation of support frames is small, the precision is guaranteed, and meanwhile, the quality of the welded seams is also more easily guaranteed.

Description

technical field [0001] The invention relates to the field of welding technology, in particular to a welding method for a thin plate and a thick plate. Background technique [0002] Welding, also known as welding, is a manufacturing process and technique that uses heat, high temperature, or pressure to join metal or other thermoplastic materials such as plastics. [0003] There are many sources of energy for modern welding, including gas flames, electric arcs, lasers, electron beams, friction, and ultrasound. In addition to its use in factories, welding can also be performed in a variety of environments, such as in the field, underwater and in space. Welding, wherever it occurs, can pose a hazard to the operator, so proper precautions must be taken when welding. Possible injuries caused by welding to the human body include burns, electric shock, visual impairment, inhalation of toxic gases, and excessive ultraviolet radiation. [0004] The traditional welding method of thi...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a welding method for thin plates and thick plates, which solves the problems that the thermal stress generated by welding causes large overall deformation of the product, cannot guarantee precision, and is difficult to guarantee the quality of weld seams.

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