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How to repair aluminum parts?

Understand the equipment needed to repair aluminum car bodies. Repairing aluminum car bodies requires higher equipment than repairing steel car bodies. Generally, there are the following types of equipment: plasma cutting machine, aluminum body carbon dioxide welding machine, aluminum body meson machine, polishing machine and other equipment. When repairing aluminum body sheet metal parts, you must first pay attention to the small rebound of aluminum and simple concave and convex deformation. First, determine how many pull points need to be welded to pull out the dented part. Then use a special plastic hammer to gently flatten the aluminum body. When welding joints, all solder joints should be pulled up slowly at the same time. The aluminum body cannot be hammered with a hammer because the aluminum is very soft. If it is severely deformed, only some deformed parts can be cut and welded with a special welding machine for aluminum bodies. In addition, the aluminum body will not expand with heat or shrink with heat, and shrinkage will only cause greater damage to the aluminum body. The welding method of aluminum body must first confirm whether the welding wire is the same as the body material, and then use a cleaner or grinder to remove all dust, paint and aluminum body welding.