Tig welding tips, questions, equipment, applications, instructions, techniques, tig welding machines, troubleshooting tig welding process
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w31der
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    Sun May 26, 2013 7:34 am

I finally got to try some tig welding, stared off welding on these 1 inch 2mm thick pieces and then moved to some thin wall tubing, which was alot move enjoyable to weld.
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Alexa
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Welder.

As the months pass, you will probably have a chuckle looking back at the first weld.
As with all processes, the restarts, tie-ing in to the end of the last bead, are important to develop the techniques.

Tanks for sharing the photo.
Curiosity ... what is the white-ish background behind your weldment in the photo?

Alexa
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Hey,

Im guessing this is not you first weld ever, merely your first tig. good effort, keep up the good stuff. And dont mess up the carpet.

Mick
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That's not bad at all for a first effort at TIG. The shadow lines suggest very little distortion.

Alexa must have tile floors... ;)

Steve S
fisher
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Very good start to your TIG, but the lounge room floor is perhaps not the best place to practice ;)
w31der
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Back to night class this week for another go at tig welding, thought i might try some filet welds this time.
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That fillet is either too hot, or bad gas coverage.

A fillet traps gas better than a groove, and should show better color than that.

Technique-wise, there's nothing wrong with it I can easily see.

If you have too much angle between the torch and the work, you can draw air in and discolor the weld. It's also possible to have a line-leak in the gas, or even bad gas.

That weld should be shiny/blue.

It may also be bad camera angle, in which case, ingnore me.

Steve S
TamJeff
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Nice for a first. I added 'hardener' to my first, in a few places.
Miller ABP 330, Syncrowave 250, Dynasty 300 DX.
Honorary member of the Fraternity of Faded Tee Shirts.
w31der
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Lucky enough to get a job welding stainless.
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w31der
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first photo was me dragging the cup, I haven't tryed walking the cup before and I am lucky to have experienced guys showing me how its done. Seem to get better consistent results, hopefully i can post up the purge pipe in the future as im still working on that.
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w31der wrote:Lucky enough to get a job welding stainless.
Congratulations!
Jonty_B
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Otto Nobedder wrote:That fillet is either too hot, or bad gas coverage.

A fillet traps gas better than a groove, and should show better color than that.

Technique-wise, there's nothing wrong with it I can easily see.

If you have too much angle between the torch and the work, you can draw air in and discolor the weld. It's also possible to have a line-leak in the gas, or even bad gas.

That weld should be shiny/blue.

It may also be bad camera angle, in which case, ingnore me.

Steve S
On that particular weld I'd have guessed at it just being very dirty MS with a lot of carbon, I keep arguing at work with a guy who refuses to even contemplate taking it off first.

Those stainless pieces are looking very nice though :D
w31der
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first time doing this, I couldn't cap it off
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w31der
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second
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w31der
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I could figure out if i was trying to fill to much, I tried 2mm wire and 2.5mm wire. it didn't come out to nice.
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Hey,

Maybe trying to fill it too quickly, looks pretty thick. Don't cap until its just below flush. More quick passes to keep the heat input down.

Mick
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w31der,

We tend to be our own worst critics.

Frankly, that doesn't look bad at all. I don't see flaws, such as undercut or an excessive HAZ.

I'd expect it to be a solid weld and pass "bend".

The sharp edges I see from one "weave" to the next suggest you could carry more heat in the cap. This will help it to "wet in" and lay down a bit smoother.

Practice, practice, practice. One day you'll be amazed that you ever thought it was hard. And then you'll try something new, and start from here again... :roll:

Steve S
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