 welding sheet metal - question |
 Sep 21, 2011 - 2:49 PM
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 Enthusiast  Joined Mar 15, '07 From Tennessee Currently Offline Reputation: 52 (100%)  |
first of all let me clarify, my welding skills are the same as me flying the space shuttle.
Although im not stupid... First of all ill star by saying that im using a crappy harbor freight mig welder.... Yes i know. My question is why when i weld sheet metal, when the borders are clean of rust, and good separation between sheets, the welder melts and makes holes. I have it in the min setting and slowest speed. The only way i found i can do it is by creating a mountain of slag, which is a pain to go back and grind. for example.... i have grinded the bottom here...  here is a closeup...  and here is the back...  I know im not an expert, but this welder sucks ass.. Period, no good settings, all good to make sparkle, but it welds like crap. What should i do... A. Should I go for a TIG welder... B. Or a better mig, i mean, are all migs going to give me this crappy buildup... I HATE GRINDING...... please advise... -------------------- Learned a lot in 10 years... I hardly log in anymore, last login Today Sept 6 2019, and I was forced just to clarify a post. LOL
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Sep 21, 2011 - 5:57 PM
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Enthusiast Joined Dec 30, '09 From Wilmington, NC Currently Offline Reputation: 1 (100%) |
Yea welding with a flux core mig on thin metal is super annoying. I did all my intercooler and exhaust piping that way. I actually went back and double check/touched up the IC piping last night. Flux core is going to have a lot of slag like that, there's no way around it. Your angle grinder will be your new girlfriend. Just take your time (do a bit and if you get annoyed walk away and come back later) and it'll come out OK with some practice. Oh, and make sure you prep the metal really well first and have a really good ground.
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Posts in this topic
njccmd2002 welding sheet metal - question Sep 21, 2011 - 2:49 PM
playr158 Flux or gas?
What thickness wire are you using. Sep 21, 2011 - 3:31 PM FallenHero looks like low energy flux core. Can you get it o... Sep 21, 2011 - 5:06 PM presure2 lots of problems there, berto.
welding thin sheet... Sep 21, 2011 - 5:24 PM njccmd2002 yeah, flux core. the cheap harbor freight one.
I... Sep 21, 2011 - 6:32 PM Bitter TIG /thread. Sep 21, 2011 - 7:53 PM stephen_lee or jump for the high end mig there. use GAS and us... Sep 23, 2011 - 2:20 PM
epocsirhc I'm a big tig welding fan, but even I would us... Sep 25, 2011 - 10:21 PM |
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