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Tool Talk Discussion Forum

Another Welder Question

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Uncle

01-21-2006 20:33:34




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I just got me new/old Hobart R-300 DC Arc Welder in. The welder has terminals marked "Electrode -" and "Work +".
In plain english please, which one do I connect the ground to and which one do I hook the hod holder to?
I'm thinking it is marked for "reverse polarity".
Am I right?
Brian




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Stan in Oly, WA

01-21-2006 22:40:29




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 Re: Another Welder Question in reply to Uncle, 01-21-2006 20:33:34  
Hi, Brian

Did you get 2 new (or used) welders at the same time? In your previous post you were asking about a problem with your Miller 175A wire feed.

Most people who have a wire feed welder don't later buy a stick welder. It's far more common the other way around.

I can't hardly think of a situation where if I needed to weld 3/16 plate together, I'd use wire feed rather than stick. I suppose it might be different if the wire feed machine was always available and ready to go, and if I was used to using it for any welding that it could do.

Wire feed is much easier to learn than stick, and it doesn't take much extra effort to learn to do it right, either. Stick isn't easy to learn. You might not feel like you can really weld with stick until you've burned a few thousand rods, but after that it's a lot less complicated than wire feed.

I have the use of more kinds of welders than most people ever even get to see. How many people who aren't weldors by trade ever get the chance to use a submerged arc welder, or try 50 different kinds of welding rod, or do carbon air-arc gouging with a machine putting out 500 amps? Every type of welding has unique capabilities and will be the best choice in some particular situation. Even so, with a wide range of options at my disposal, what I find myself using most of the time is stick. Once you're past the learning curve, stick seems to offer the best combination of simplicity and versatility.

That's been my experience, anyway.

Stan

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Uncle

01-21-2006 21:00:33




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 Re: Another Welder Question in reply to Uncle, 01-21-2006 20:33:34  
Thanks for the replys. I thought I knew what I was doing.
I went to school when electricity flowed from Pos. to Neg.
Brian.



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old

01-21-2006 20:47:36




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 Re: Another Welder Question in reply to Uncle, 01-21-2006 20:33:34  
Since you said in plain english I'll keep it sweet and simple.
Work means ground or the piece your working on.
Electrode means the rod. But also as Bob says differant rods work differantly.



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Bob

01-21-2006 20:39:48




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 Re: Another Welder Question in reply to Uncle, 01-21-2006 20:33:34  
Certain welding rods will work better at one polarity or the other, straight polarity, reverse polarity, or AC.

It should say on the rod box or data sheet.


Here's a good welding forum:

Link


And, a link to Tech tips:

Link



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