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Old 07-19-2003, 02:57 PM
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Cool Welder question

I was at a local pawn shop yesterday and picked up a set of dollies and a body hammer (Snap-on brand) for $20, not bad I think. But while I was there I spotted a little 110 AC arc welder for 1/16th and 5/32 rods for $70. Now I've got to do some welding on my '46 Chevy Panel, the rear rollpan is going to be replaced. With some practice I know I could weld it in myself instead of loading the truck on a trailer taking it to a local body shop and the rest of the hassle. Do you folks think its worth the $70, the bad part is I don't remember the brand name right now. And also do you think that it would be big enough for welding sheet metal.

Thanks folks

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Old 07-19-2003, 06:42 PM
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arc/stick isn't really suitable for welding thin sheet metal. Look into picking up a small MIG machine that is capable of running a shielding gas.

I'm running a Hobart 125 with .030 flux core, and even at the lowest setting I easily evaporate the sheetmetal.

A small MIG will probably run you around $350 new. This would be much cheaper than paying someone to do it for you.

Alternatively the work can be done with Oxy/Acet, but I personally think it would take a fair amount of practice to acquire the skill necessary to weld sheetmetal with a gas rig. I could be wrong.

The stick machine might be nice to have around if you intend to do any modifications to your frame.

Lastly, you got a helluva deal on those hammers and dollys! Cheapy sets run $20, and you cannot even begin to compare the cheapy sets to quality hammers and dollys.
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Old 07-19-2003, 07:43 PM
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Thats a deal.
A snapon hammer cost much more than that.
Yep you can do a much better job with a mig.

Good Luck,
Troy,
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Old 07-19-2003, 08:17 PM
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Oxy/Acet? I think I seen a kit the other day at auto zone would it have a stronger weld then a arc welder?
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Old 07-19-2003, 08:27 PM
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Oxy/acet. wil put an enormous amout of heat in the panels causing wapage and distortion. I would also go with a mig. I personally have a 145 amp 110 volt machine. I do not use flux core, I don't like the welds I use mig gas on mine.
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Old 07-19-2003, 08:52 PM
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A gas torch or TIG-process machine would be the two most desireable methods of welding sheetmetal. With either of these processes, you can hammer-weld a butt joint, then pick and file the panel to perfectiion without using plastic filler.

However, unless you have really gotten proficient with your new hammer and dollies, I would suggest picking up a little MIG machine for your project.

Good luck.
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Old 07-19-2003, 09:14 PM
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Quote:
Originally posted by spankyway
Oxy/acet. wil put an enormous amout of heat in the panels causing wapage and distortion. .
Mig welders only became popular over the past 15 years. Back in the old days it was strictly Oxy/Acet. And to my understanding, when welding sheetmetal (especially motorcycle gas tanks and the like) Oxy/Acet is more desireable than tig.
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Old 07-19-2003, 10:13 PM
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The great thing about oxy/act weldig is that the weld is as soft as the rest of the sheet metal. This is desirable because the seam can be worked almost completely out. I say almost because most of use just dont have the skills to get it completly out, but there are a few who can do it.

MIG welds are hard and can only be ground flat and filled over. If done correctly it only takes a dab of filler which doesnt bother me one bit.

Chris
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Old 07-19-2003, 11:02 PM
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Hella time to take a trip to auto zone. Oxy Acetylene welder is mine. Thanks guys A lil bomdonever hurt anything
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Old 07-20-2003, 12:11 AM
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stick is not realy suitable for sheet metal i have welded less than .8 mm with a mig befor and there was very little distorsion
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Old 07-20-2003, 01:31 AM
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Before the meg came along, I welded 99* of all my repairs with a torch. you can destroy a panel with one if you are not careful.
Like s10 stated you can make a soft joint with a torch, I use coat hanger it`s really soft and free(my wife has a dry cleaners)
Unless you have used a torch a lot you will distort the roll pan.

Good Luck, HTH

Troy,
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Old 07-22-2003, 07:21 AM
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Thanks for all the info folks. I've got a bunch of pawn shops in the area so I'll go around maybe I'll find a small mig or tig unit in one of them and see what kinda deal I can get. Right now I really don't want to spend the $300 -$500 or higher for a new one because all I need it for is the one job right now. Down the road I know I'll get a new/better one. As for the oxy welding that is another real good option to look at. I've been told to do short welds in different areas till the weld is complete to help prevent distorsion so maybe that won't be so hard to do with some practice.

Thanks again for all the info.
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