Tig welding tips, questions, equipment, applications, instructions, techniques, tig welding machines, troubleshooting tig welding process
OzFlo
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Just mucking around with some outside corner joints on 16ga stainless.. I experimented using pulse, as well as filler and no filler joints. All joints were welded with a 3/32" 2% Lanthanated Tungsten, Furick Fupa 12 with aluminium angle for backing. I had 100 amps set on the machine but didn't go anywhere near that..I think I had about 12LPM argon flow.

No pulse, 1/16" 308L filler:

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1pps, 100 amps, 30% peak current and 20% background current, 1/16" 308L filler:

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Same settings as above sans filler:

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I only ran 6 coupons but I can definitely see the benefit that using a smaller diameter tungsten and filler would have on thin material.

Flo
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OzFlo wrote:Just mucking around with some outside corner joints on 16ga stainless.. I experimented using pulse, as well as filler and no filler joints. All joints were welded with a 3/32" 2% Lanthanated Tungsten, Furick Fupa 12 with aluminium angle for backing. I had 100 amps set on the machine but didn't go anywhere near that..I think I had about 12LPM argon flow.

I only ran 6 coupons but I can definitely see the benefit that using a smaller diameter tungsten and filler would have on thin material.

Flo
way to lay it down Flo, very nice
Richard
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OzFlo
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LtBadd wrote: way to lay it down Flo, very nice
Thanks Richard. This is the same material that I'm going to build my water cooler reservoir from so I want to get some good practice before attempting to weld that up. I didn't use any chill bars on the face side of the material when I welded those coupons but definitely will be when I attempt the real thing.

Flo
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OzFlo wrote: Thanks Richard. This is the same material that I'm going to build my water cooler reservoir from so I want to get some good practice before attempting to weld that up. I didn't use any chill bars on the face side of the material when I welded those coupons but definitely will be when I attempt the real thing.

Flo
Make sure to document your build, we'll all benefit from it ;)
Richard
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Nice job Flo :)
Pete



Esab SVI 300, Mig 4HD wire feeder, 30A spool gun, Miller Passport, Dynasty 300 DX, Coolmate 4, Spectrum 2050, C&K Cold Wire feeder WF-3, Black Gold Tungsten Sharperner, Prime Weld 225
OzFlo
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pgk wrote:Nice job Flo :)
Thanks pgk :D
dgapilot
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Nice welds Flo, hope I can achieve that level of consistency some day


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OzFlo
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Thanks David.. I only posted the good ones!! :lol:
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Beautiful work, Flo.



Moz
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Was stuck in the shop waiting for deliveries. Got sick of doing paperwork so went into the shop and knocked up a third hand from scrap. The 1/4" round came from a mop squeezer already bent to perfect shape, just had to cut it to length. All three points got aluminium bronzed to eliminate sparking.
3rd hand.jpg
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Deliveries came, too late to go back to site and I missed lunch so what would do you think an aussie joker would do about that?
bbq.jpg
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Ah Queensland, beautiful one day, perfect the next. :lol: :lol: :lol:
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A few from the week. The first ones were tough. The main tubes were 0.6 mm (0.024") wall. A little nerve racking!

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Stephen S by Mike Zanconato, on Flickr

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Stephen S by Mike Zanconato, on Flickr

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Stephen S by Mike Zanconato, on Flickr

The rest were a little more chill. Typical 0.7 - 0.8 mm wall.

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Bill S by Mike Zanconato, on Flickr

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Rich R by Mike Zanconato, on Flickr

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Dan A by Mike Zanconato, on Flickr

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Rich R by Mike Zanconato, on Flickr
Coldman
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Beautiful work as usual Zank!
0.6mm is gettin pretty thin. How does it go for strength, is there a weight limit for the rider?
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VooDoo
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Wall thikness dosent efect on the strenght of the pipe, only material and outside diameter. You can apply the same force in pipe or axle... until there is a litle dent in the pipe.


i have made controllarms for race cars with 0.8mm wall thikness pipe, material 4130. Worked great. Cant take any dents, but is same for the stiffness than hevier wall pipe.
Coldman
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Well you're wrong about that. You're just operating at a lower factor of safety. If you did the strength calculations you would know this to be true.


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VooDoo
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Thats true that the longevity of the part goes down with thin wall, but dosent effect the torsional stiffness much. Not problem @ racing (cars.. bikes..)
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Yeah! We got our ASME "R" stamp qual yesterday. This li'l root pass was enough to send the fire marshal and board inspectors over the edge. I then went to lunch with them and the bosses and stuffed myself full. Great bunch of folk.
It'll be 3-4 weeks before we have our certificate and stamp, but code work can proceed.

Steve
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Coldman
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Great news Steve, well done. I recon the feeling might better than a standing ovation.


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Poland308
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Well done!
I have more questions than answers

Josh
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Congratulations Steve
Richard
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OzFlo
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Well done Steve! :D
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Great stuff Steve!



Moz
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Thanks, guys! I have one procedure and test left... One vessel in the queue is aluminum, so I have to qualify separately, and qualify a separate procedure.

Steve
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Good luck on the last one, Steve! Congrats so far!
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Last month or so I have ore pics of each if anyone wants moreImageImageImageImageImageImageImageImageImage

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ContinuedImageImageImageImageImageImageImageImageImage

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