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Hey all,

Normally I'd post this question at the MetalMeet site, but they seem to be down, and I'm not sure when/if they'll be back up.

So here is my question. I've got a small Mig welder, and I've got this issue that I'm trying to work out that the guy at the welding supply says needs a Tig welder. Being about 2g's short of a Tig welder at this point I'm looking for cheapo solutions.

I seems to me that the big difference between mig and tig is the whole wire feed aspect. Couldn't I just take the copper nozzle out of my tig welder gun and replace it with a tungston needle and have myself a instant cheapo tig welder?

I assume that their must be a problem with this cause there has got to be a reason that mig welders are $500 and tig $2500. But I sure can't tease the problem out of the books that I've read on the subject. Just seems that everyone says tigs are better and cost more.

Thoughts?

B
 

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MIG to TIG Conversion

I've got a MIG machine that I converted
to TIG operation, except that it doesn't have hi frequency for aluminum.

First, you have to have a "tig rig" which is the tig handle which holds the tungsten along with the argon shielding hose and electrical feed hookup combination.

I've got it written up in an excel file
 

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Billy Boy said:
Hey all,

Normally I'd post this question at the MetalMeet site, but they seem to be down, and I'm not sure when/if they'll be back up.

So here is my question. I've got a small Mig welder, and I've got this issue that I'm trying to work out that the guy at the welding supply says needs a Tig welder. Being about 2g's short of a Tig welder at this point I'm looking for cheapo solutions.

I seems to me that the big difference between mig and tig is the whole wire feed aspect. Couldn't I just take the copper nozzle out of my tig welder gun and replace it with a tungston needle and have myself a instant cheapo tig welder?

I assume that their must be a problem with this cause there has got to be a reason that mig welders are $500 and tig $2500. But I sure can't tease the problem out of the books that I've read on the subject. Just seems that everyone says tigs are better and cost more.

Thoughts?

B
I made one for fun with my boy from a DC arc welder, we set up on dc and then we had an extra air cooled tig torch along with a argon bottle and regualtor I fired it up and tig welded. I used a copper plate near the weld to drag the tip accross to the weld area and it tiged fine. without the high frequency you need to have a scratch start. and no ac with out the HF so no alum but did work for the steel. I got my use and old miller tig for $750 300 amp 220volt single phase house current. Not as good as some of the newer stuff on aluminum but a great unit for everything else, stainless, copper and steel, does weld aluminium and have fixed many dirt bike and and al gas tank and other parts. Ed ke6bnlo
 

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hey

As a certified TIG welder, I can say there is alot of difference in mig and tig machines...

Your best bet is an old buzz box DC stick welder, cheap...and you can throw a scratch start DC setup on there....good for carbon steel and stainless....

thats the only way your really gonna get tig welding for under $1000....even a used tig welding setup now a days, a low amprege, ac/dc machine...is nearly $1000 if not alot more...
 
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