Welding aluminized exhaust pipe. Generally the thicker the wire the more penetrationand burn through you will have so it wont perform as well on thin metal like exhaust tubing. As compare to flix core and stick welding the MIG welding more satisfactory to weld exhaust pipes. The thicker 14 gauge wall makes for the best bang for the buck exhaust piping. These aluminized pipes have a thin electro-coating of aluminum on them that drastically reduces corrosion over time. Welding aluminized exhaust pipe that can ease off your cars exhaust system functions optimally. 1 – The OEM systems were made by welding aluminized pipe and mufflers together 2 – They successfully welded them without removing the aluminizing probably with MIG. Its a fricken exhaust pipe for cryin out loud.
However you must take extra precaution to TIG weld your exhaust pipe. Areas that scrape over a curb or get dinged by rocks will rust just like mild steel. Ad QuellTech – perfect tools for automatic testing measuring of dimensions. As a result not every welding machine out there is suited to welding exhaust pipes. I would set up a couple practice welds on the joints you will be doing using the setup you already have.
Most people dont realize the most damage of an exhaust system comes from not letting your vehicle get hot and vaporize and remove the vapor that comes from hot air passing thru a cold pipe not to mention the water vapor that is generated from burning fossil fuel. I need to do some exhaust work on the Red Furd and I dont like to grind the stuff off it still seems to contaminate the weld and it thins the tubing where I want to weld.
Areas that scrape over a curb or get dinged by rocks will rust just like mild steel. Tips for oxy acetylene welding aluminized exhaust pipe moltenmetal Chemical 15 Jun 15 1152 Regardless what you do the welded areas will corrode first- not the weld itself but the area adjacent to the weld where the coating has been stripped and the section is still thin. I dont feel it will break but again that will depend on the stress the exhaust will see. I have never had any issues welding aluminized exhaust pipes with an oxy acetylene torch.