Welding Aluminum Exhaust Pipe. The aluminum coating has a melting point well below the temperature required to fuse the steel materials being welded. And these are not weld-able.
Lets follow the four easy steps and weld exhaust pipe properly. MIG welding is one of the most common welding processes out there. Welding an exhaust pipe means attaching different parts of the exhausting system through various techniques that ensure the exhaust system is fully sealed.
Aluminum and steel are soft metals in nature and there welding is not sustainable.
The aluminum coating has a melting point well below the temperature required to fuse the steel materials being welded. So you need to remove the aluminum coating from both surfaces well beyond the weld location. The initial step is to cut the exhaust pipe. Many muffler shops often use 035 fluxcored self-sheilded wires but you will want to either grind or flapwheel the aluminum coating off a bit where your gonna weld.