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Discussion Forum

Which AC/DC Welder

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Greg Lenz

08-18-2000 22:48:50




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Anyone ever use Craftsman Stick welder (Century in reality I think.) They offer a AC/DC stick for a lot less than a Lincoln, Hobart or Miller. I currently use a Lincoln AC 225S but am ready to try a DC.

Very Happy with the Lincoln, but if I can save $100.00 and get good results, I should probably do that. Please let me know what you think. I have never used anything but the Lincoln AC.

Also another question on the DC side. Can I weld very thin metal like 22+/- guage with a DC stick just as I can with a MIG?

Thanks in advance,
Greg

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Steve

08-19-2000 20:53:05




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 Re: Which AC/DC Welder in reply to Greg Lenz, 08-18-2000 22:48:50  
Greg, I was at a sears store and I looked over one of those cheap welders. I did not like the amp control lever on it. It was hard to adjust the amps accuratly. I decided to look around for a lincoln or miller. The hobart is the same as miller. I once had a miller thunder AC/DC. I gave ti to my father-in-law, but I loved the way it welded on DC. And I liked the fact you could get a exact amperage setting. I now have a Lincoln AC welder I bought at a pawn shop for 150 dollars and it works great. Century does make good welders though. I have seen one in harbor freight that is a AC/DC 250 amp 100% duty cycle for 600 dollars. I think these are the same as some of the older Wards welders and I have friends you have those And tell me the have been good welding machines. My opinion is for the money a good miller or lincoln can't be beat. Hope this helps.

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Steve U.S. Alloys

08-19-2000 09:53:16




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 Re: Which AC/DC Welder in reply to Greg Lenz, 08-18-2000 22:48:50  
Hi Greg,
With practice, and using the forehand method, you can weld fairly thin sheet metal with a stick welder.

Here's the difference between polarities.

AC= 1/2 the heat in the electrode and 1/2 in the base metal.

DC+= 1/3 heat in the base metal and 2/3 in the electrode.

DC-= 2/3 heat in the base metal and 1/3 in the electrode.

DC+ polarity will enable you to weld AL using a extruded coated electrode.
You may also benefit from polarity changes when welding out of position.
Steve

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Scott Green

08-19-2000 18:25:12




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 Re: Re: Which AC/DC Welder in reply to Steve U.S. Alloys, 08-19-2000 09:53:16  
Steve , very good information you posted here.



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Scott Green

08-19-2000 03:29:07




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 Re: Which AC/DC Welder in reply to Greg Lenz, 08-18-2000 22:48:50  
Like I said on the earlyer post , I worked in a boiler factory where most everything is put togather with weld. Many kinds and types , and brand names of welders. Centry is one of the brand names they had. It is also the brand name I was told to stay away from. I have a lincoln AC/DC. With practice , I can weld band iron with it. You can't beat a mig machine for thin stuff. Mine is a stick welder. Very happy with it.

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