Micro TIG WELDING! Lets see em!

[Johnson]

Started laying down some small beads today, thought I would share some pictures of em'...a dime is placed for referance. I was right around 70amps. I'd love to see more of whats is out there - Ryan

[xalky]

Nice bead there, Johnson. Cant wait to get my machine.

[DaveO]

Very cool, nicely done. Are you experimenting with small beads or is that part of something else?

[Johnson]

My instructor kept telling me to scale it down... after some experimenting I welded that piece. I think he is trying to get us ready for stainless. My new machine will be here in a week or so and I can't wait to see how well it preforms against a dynasty 350. I know it's kinda unfair, but I have good hopes My Micro 185 had a really nice arc and I'm guessing the 250ex will be better. I'll be posting lots of shots of my welds from the 250ex

[youngnstudly]

Hey, no fair! I don't have a Micro 185! Plus you really should be welding aluminum and showing off the A/C function of that machine anyways! Take advantage of that as some of us don't have fancy A/C and D/C welders!

I have to say that I've done some decent beads on my PA 160 STH, even though it's a bare bones unit. I have yet to weld a test bead though...everything lately has been project stuff with short beads.

I look forward to seeing more shots of your welds, especially with your new 250ex.

[Trip59]

70 amps? How thick is the base metal?

I was thinking of running some more blades this weekend, I like to play with them every couple weeks. Believe it or not, I find it a really good exercise to keep close control of the torch... yeah, you can practice on big stuff, but a bit of wiggle or varying arc length don't really show as easily as welding up .009 thick razor blades. I usually set the machine around 10A and pedal my way around.



Bead is a bit tall, only had 1/16 filler on hand that day. Penetration is great, through and through. Bit of warping towards the end, I just set them on the table, no clamp or third hand (though I built some since then)

[Johnson]

It was on 14 gauge......074" so 70 amps was on the lower end. The razor blade thing is great...gotta try that soon. And yes the Micro 185 WAS a good machine but sold it to help fund my 250ex. That should keep me busy for awhile I'll give the razors a go in a week when my new machine gets here.

[johnson697]

sweet....i have a 250 ex and is a very nice machine ,but i have been thinkin about getting a 255ext .

[zank]

Butt weld on 0.028" wall tubing. Not micro, but small for me!


Some practice by Zanconato Custom Cycles, on Flickr


Some practice by Zanconato Custom Cycles, on Flickr

[johnson697]

what kind of material is that zank?

[zank]

That's 410 stainless. 1.25" OD x 0.028" wall. I used 0.035" 309L filler. This is a fun drill because it really makes any change in bead width or travel direction pop out. And it's good practice for purging.

[Johnson]

Another one! about a 1/16th of an inch

[cbmkr]

Heres one of some 22 ga parts i was fabbing for my car, the lead pencil tip is .045 dia. 25 amps dc



Best focus i could get with the camera that close

[xalky]

Heres one of some 22 ga parts i was fabbing for my car, the lead pencil tip is .045 dia. 25 amps dc



Best focus i could get with the camera that close

Nice, Thats the kind of stuff that you just cant do with a mig.