TPU cutting machine Manufacturing.Will it be more secure to weld multiple points with a spot welding machine?

　　In metal welding, when using a resistance spot welding machine for welding, firm welding is a basic requirement. From a simple image, the more solder joints there are, the stronger they become. Therefore, some people may say no, so they will weld more points, which must be firm. In fact, this is biased. In multi-point welding, there are requirements for the spacing between welding points. The closer you approach this requirement, the more secure multiple solder joints will be. If the spacing between solder joints does not meet the requirements, it may have the opposite effect. The more irregular and non-standard the spacing between solder joints, the more difficult it is to ensure firmness, and the quality of solder joints may also deteriorate.

　　The main reason for this problem, analyzed by the spot welding machine manufacturer, is the phenomenon of solder joint diversion. When the distance between points is small, it is easy to generate diversion, resulting in insufficient heating in the welding area. During spot welding, the current flowing through the non welding area is called shunt. The material resistivity and conductivity path of the solder joint splitter are related to the welded workpiece. In fact, every solder joint formed by welding is a current path. When a spot welding machine is used for welding, the resistance in the adjacent area is much lower than that in the welding area after the formation of one area, that is, the resistance in position 2 is relatively high, and it will flow towards the position - part, so the quality of position 2 is lower than that of position 1.

　　The smaller the distance between two solder joints, the poorer the quality of the solder joints welded later on. If the spacing and diversion are large enough, it may even affect the formation of the next solder joint.

　　Therefore, in the welding work of spot welders, when multiple welding points need to be welded, it is necessary to design a welding point spacing that meets the requirements, otherwise it will affect the welding effect. Based on the size of the solder joint, welding material, workpiece geometry, different welding methods (collision, parallelism), different welding structures, etc., evaluation should be carried out according to the actual situation.

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