Braided Inner Stainless Steel Exhaust Pipe Argon Arc Welding - Image Results
Yes you can weld the stainless exhaust with SS solid wire and 75/25 gas, BUT, it will look like crap because the edges of the weld won't tie in very well with the pipe and the arc is hard to control for making an even bead. When MIGing SS, I like to use 98% Argon / 2% Oxy because it works a lot better. MIG Welding Stainless Steel Exhaust Welding Tips and Tricks braided inner stainless steel exhaust pipe Argon arc weldingDont use bare Argon gas for MIG welding; mix sufficient CO2 gas with Argon for the exhaust pipe. Use a metal brush instead of a wire brush while welding in the MIG method; its beneficial. Keep the power supply or amperage medium because high amperage will create excessive temperature, and that will burn the soft metal surface.
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Gas tungsten arc welding (GTAW), also known as tungsten inert gas (TIG) welding, is an arc welding process that uses a non-consumable tungsten electrode to produce the weld. The weld area is protected from atmospheric contamination by an inert shielding gas (argon or helium), and a filler metal is normally used, though some welds, known as autogenous welds, do not require it. Stainless Steel MIG Welding with Compact WeldersWith both these stainless steel gas mixes the minor gases in the blend are required to provide good arc starting characteristics. Therefore, you do not want to use a completely inert shielding gas, such as 100% helium or 100% argon for stainless steel MIG welding. The arc characterisitcs would be poor. Videos for Braided Inner Stainless Steel Exhaust Pipe Argon Arc WeldingFor best results: Insert your exhaust tubing in each end as far as it will fit (typically about ). TIG weld the lap joint with 308 filler rod and a #12 cup/gas lens. Focus your arc more on the tubing and add your filler in the keyhole from the cap ring side to prevent the layers of the flex from overheating.
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