Only downside about it is its from harbor freight. First time I welded in my life was with a flux wire welder and perfect weld, no splatter. My uncle owns a bunch of different kinds of welders and uses a flux wire welder to weld up my exhaust parts. I believe you just don't know how to weld. MILLER MILLERMATIC 140 AUTOSET MIG WELDER # 907335 | eBay Basically dials in your settings for you so all you need to do is work on your technique. I'm sure this is out of your price range but for any beginner you really can't go wrong with millers new line of Autoset welders. Search craigslist in your area and see what you can find. Usually welds like crap and is sometimes difficult to get decent penetration or appearance. One other thing is that welder is for gasless wire only which isn't all that much fun welding with. Also I don't trust any electronics from Harbor Freight. There is a significant performance difference between low end cheap welders and more expensive models. Select Process: AC TIG, DC TIG, DC Stick or MIG Spool Gun. Find someone with a welder and mess around on it to see how you like it. Miller Syncrowave 300 TIG Welder, 208 - 480 Volt, 400 Amp Max Output with. Honestly I wouldn't waste my money on that. Use acetone or alcohol to get any residual seam sealer or paint or what have you off of the surface. Grind/sand/wirebrush it down to bare metal, and then some more. The key to doing good welding on anything is make sure the metal you want to join together is CLEAN CLEAN CLEAN CLEAN. Here's a pic of my welds using flux core wire (welding a 1/8" thick steel plate to the 18 or so gauge metal on a B13's interior):Īs you can see, decent penetration and fairly minimal spatter. I have a Hobart Handler 140 myself that I've used to do anything from exhaust piping to. However, you should always clean the surface of the base metals as thoroughly as possible to ensure that a rusty or scaly surface does not contaminate the final weld. As mentioned earlier, flux-cored welding is more tolerant of surface contamination than MIG welding. Exhaust piping is usually fairly thin wall and you can get by with low power setup. Metal preparation for flux-cored welding. You don't need that much amperage, especially if you're doing exhaust work. If you are going to buy a welder, I'd go with a used Hobart or Lincoln. The only issue with flux core is that you will have spatter, but you can minimize it if you prep the metal correctly. Don't bother getting a tank of argon/co2 if you're just welding exhaust piping. Flux core wire is perfectly fine to weld with.
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