I want to apply for a job as a sheet metal worker in BMW 4S shop, but he told me that I need to be able to weld aluminum. I really don't understand aluminum welding. BMW requires aluminum welding to w

I want to apply for a job as a sheet metal worker in BMW 4S shop, but he told me that I need to be able to weld aluminum. I really don't understand aluminum welding. BMW requires aluminum welding to weld the front cover. Knowing how to weld aluminum means that you may encounter many die-cast aluminum alloys and aluminum extrusions. Specifically, BMW 4S shop is the welding of cylinder block, cylinder head, gearbox and water tank, which is basically the welding of aluminum.

Let's talk about BMW's cylinders and cylinder heads first. Generally, the cylinder and cylinder head of BMW are die-cast aluminum, which requires argon arc welding and is an AC power supply. This kind of welding requires argon arc welding foundation.

BMW's gearbox is generally die-cast zinc-magnesium alloy, which means that the traditional aluminum alloy welding wire is not welded well. You can talk to the manager about this during the interview, and he will think you are very good at it. At this time, we need to weld with WE33M magnesium-zinc alloy wire instead of aluminum wire.

Finally, BMW's water tank is welded, and BMW's water tank must be made of aluminum alloy. At this time, argon arc welding is not needed. You just need to master the basic knowledge of gas welding. You can refer to the information: video of welding aluminum water tank with iodine.

Materials: WE53 and Q303

Tools: WE53 special liquefied gas porous spray gun.