first time doing this and very disappointed.
put the stinger on the positive side and the ground on the negative side
and as soon as i stomped the pedal my tungsten balled up huge. not only that smoked my glass lens and cracked it.
what did i do wrong?
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chubbysautocenter
- chubbysautocenter
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- MinnesotaDave
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DC+ is only used for very thin aluminum.
The tungsten can't take that kind of heat - for example, 1/8" tungsten only handles about 40 amps on DC+
But on DC- it handles hundreds of amps.
The tungsten can't take that kind of heat - for example, 1/8" tungsten only handles about 40 amps on DC+
But on DC- it handles hundreds of amps.
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Dave J.
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Syncro 350
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Tried being normal once, didn't take....I think it was a Tuesday.
Beware of false knowledge; it is more dangerous than ignorance. ~George Bernard Shaw~
Syncro 350
Invertec v250-s
Thermal Arc 161 and 300
MM210
Dialarc
Tried being normal once, didn't take....I think it was a Tuesday.
- AKweldshop
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chubbysautocenter wrote:first time doing this and very disappointed.
put the stinger on the positive side and the ground on the negative side
and as soon as i stomped the pedal my tungsten balled up huge. not only that smoked my glass lens and cracked it.
what did i do wrong?
Why would you try it???
What material where you attempting to weld?
Just a couple welders and a couple of big hammers and torches.
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- Otto Nobedder
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Since this showed up in the "forum instructions", I'll migrate it to the TIG forum. I'll certainly get more views there.
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chubbysautocenter
- chubbysautocenter
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thanks that's great infoMinnesotaDave wrote:DC+ is only used for very thin aluminum.
The tungsten can't take that kind of heat - for example, 1/8" tungsten only handles about 40 amps on DC+
But on DC- it handles hundreds of amps.
I HATE BEING BI POLAR ITS GREAT
chubbysautocenter
- chubbysautocenter
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just testing it out. it was mild steelAKweldshop wrote:Why would you try it???chubbysautocenter wrote:first time doing this and very disappointed.
put the stinger on the positive side and the ground on the negative side
and as soon as i stomped the pedal my tungsten balled up huge. not only that smoked my glass lens and cracked it.
what did i do wrong?
What material where you attempting to weld?
I HATE BEING BI POLAR ITS GREAT
Now you know, and you won't forget. I learned it the same way.chubbysautocenter wrote:just testing it out. it was mild steelAKweldshop wrote: Why would you try it???
What material where you attempting to weld?
Heat flows toward the positive conductor. In this case, it went from the steel into your tungsten.
Generalizations... The torch is negative for steel (aka DC- or DCEN [electrode negative]) and AC for aluminum. With aluminum, the positive swing (DCEP) on the AC cycle burns off the oxide layer, at the expense of heating your tungsten and reducing the heat that goes into the joint (which is one reason aluminum needs a beefier welder for the same thickness).
Cheers,
Richard
Grinding discs... still my #1 consumable!
chubbysautocenter
- chubbysautocenter
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RichardH wrote:Now you know, and you won't forget. I learned it the same way.chubbysautocenter wrote:just testing it out. it was mild steelAKweldshop wrote: Why would you try it???
What material where you attempting to weld?
Heat flows toward the positive conductor. In this case, it went from the steel into your tungsten.
Generalizations... The torch is negative for steel (aka DC- or DCEN [electrode negative]) and AC for aluminum. With aluminum, the positive swing (DCEP) on the AC cycle burns off the oxide layer, at the expense of heating your tungsten and reducing the heat that goes into the joint (which is one reason aluminum needs a beefier welder for the same thickness). great info thanks
Cheers,
Richard
I HATE BEING BI POLAR ITS GREAT
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