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hey guys, I am looking for opinions on welders. I have some rot on my truck that I can no longer ignore. I am thinking of buying one of those gassless wirefed welders to address these issues. I am a novice welder at best, very limited experiance but I want to do all the work myself. can anyone offer me suggestions on what type of welder would be best for reparing some holes and patching some sheetmetal? thanks
wire feed with gas makes a lot cleaner weld, if you are new to welding, I suggest getting some junk body metal to practise a bunch on before you tackle your body.
I have a Hobart Handler 140 from Tractor Supply for about $450 $400 if you wait for a sale. Hobart is Millers off brand and a pretty good little machine for about $200-300 less than the equivalent Miller. I also use their gas, you are kind of limited they only have straight CO2 and 75/25 Argon CO2 mix which is what I use the straight CO2 can freeze up the cheaper flow meters (actually they come with regulators) and it runs colder and creates a lot more spatter. The bottle is about $300 for the bottle the first time and then about $30 per fill after that. Don't waste your time with the smallest size they suck you always run out before you finish a job and have to go get a refill right in the middle. Starmilt is right too cut the old pieces up and practice some before going to town on your truck even a small amount of porosity will trap water and rust out sometimes in as little as a year, so you want to get it done right the first time.
-John
I have used the little kitchen welders on vehicle metal a number of times and a good one is worth every penny you pay for it. I just ordered a lincoln 140 from snap-on and I'll have to get a tank, (here they sell you the tank full the first time,150/200 depending on size then you just trade them and pay for the gas) I recommend getting the mig with gas, a lot cleaner weld and for what you are doing that counts for about everything. Just try not to overweld so you panels don't warp on you. You can weld them with about any welder, but the little migs are just great at that type of welding and efficient at it also. Good luck and hope we helped you ...
Definately go the solid core/ gas route if you planning extensive sheet metal welding. If you're only tacking a small piece, I would get a 12 pack and have a budyy just come over and do it then rather than settle for a flux-core only rig.
The hobart handler 140 is reasonably priced, will weld anything on a vehicle short of an engine block (and would weld that too if you beveled and made multiple passes), comes with gas/gasless kit, and is pretty decent. I shopped for months before I finally purchased one. I have used flux core wire to weld sheetmetal with no problems. It takes more finish work to get it to look good, but not that much more. If you properly prep the surfaces by getting them down to baremetal and using the hobart antispatter dip, you won't have any problems. And the box comes with the gas regulator if you decide you must have gas. For a novice I think flux core is easier to deal wtih. And certainly less expensive. tractor supply sells both the welder and the gas tank if you decide to add one.
my first welder was a flux core and it worked fine when it came to welding the metal together but there was a lot of splatter so I spent more time grinding and sanding off splatter than I did welding. I bought a small Miller gas welder and that took care of the splatter issue and now I can just weld and do minor cleanup when I am done.
Yep, as he said above, thats the main difference between flux core and gas wiring. You get more spatter with flux core. But if you take the time to prep your surfaces and use anti spatter dip or spray, it makes a huge difference.
If you are welding outside in the wind the flux core works better, If you have wind protection there is no comparison, use some sort of antisplatter with either one you use, pam oven cleaner also works, but with flux core you still have to deal with the flux, the same as if you were using a stick setup.
Don't settle for less than the Hobart. Check Craigslist for a used setup if money is tight. If you get a Harbor Freight, or any cheap welder, you are going to wind up getting discourged or buying another anyway. If you just can't afford it, get someone else to weld what you need.
Use .020-.023 diameter solid wire with 75% argon 25% Co2 mix gas.
^^ Thats what I use in my Millermatic 175 for sheetmetal and some thicker stuff, its a great little welder. Its worth spending the little extra on a decent welder IMO. I have a larger Miller MIG and a TIG but still use the little 180 for tacking and sheetmetal. I tried flux core in it once and it doesn't work for chit.