Author Topic: Thinking about buying a TIG welder  (Read 11403 times)

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Offline b52bombardier1

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Re: Thinking about buying a TIG welder
« Reply #25 on: August 24, 2017, 06:19:11 AM »
Pick up some weld steel at Lowe's or Home Depot though any scrap you have laying around will work for practice as long as it is not galvanized. The zinc galvanizing tends to ruin the weld and the smoke is toxic.

Also thoroughly clean any rust on your scrap off down to bare metal. Rust also ruins the weld.

Rick

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Offline RainCityRider

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Re: Thinking about buying a TIG welder
« Reply #26 on: August 25, 2017, 02:12:12 PM »
I got some pieces of sheet metal from a sign shop by my work for free. Dude was super cool. I asked for scrap and he took 2 big pieces and cut them into about 6or 8 small pieces. Also bought the non-chlorinated Brakleen at the auto store. I wish I wasn't going to be out of town for the next week! I wanna play! ;)
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Offline calj737

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Re: Thinking about buying a TIG welder
« Reply #27 on: August 25, 2017, 02:29:45 PM »
Free metal is great. But for practice, you really want at least 3/16" thick. The heat will warp and blow through "sheet metal" very fast.
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Offline 754

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Re: Thinking about buying a TIG welder
« Reply #28 on: August 25, 2017, 08:08:13 PM »
Oh you mean plate..
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Offline calj737

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Re: Thinking about buying a TIG welder
« Reply #29 on: August 26, 2017, 04:56:43 AM »
Oh you mean plate..
No, I mean any shape at least 3/16" ( tubing, rod, flat stock or plate)
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Offline RainCityRider

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Re: Thinking about buying a TIG welder
« Reply #30 on: August 26, 2017, 06:51:51 AM »
Free metal is great. But for practice, you really want at least 3/16" thick. The heat will warp and blow through "sheet metal" very fast.
I will buy some when I get home.


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Offline RainCityRider

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Re: Thinking about buying a TIG welder
« Reply #31 on: September 05, 2017, 03:37:41 PM »
So I have used the welder 4 times, for on average an hour each time, over the last week or so. Tell me, how am I doing?

This joint was the second one I tried. Forgot to turn the welder down at first so the left side got a bit blown out. I think the middle looks ok

Or not


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Offline calj737

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Re: Thinking about buying a TIG welder
« Reply #32 on: September 05, 2017, 05:00:50 PM »
I know what you're getting for Xmas, a grinder!  ;D

Of course I'm purely joking.  :)

A great way to practice is without filler rod. Simply establish a puddle on some 1/8" or thicker material, and move along watching the puddle. Try to advance 1/8", pause, advance, pause. Watch the metal as you go and try to have your torch hand propped and steady so you slide along gently with your forearm, not move the torch with your fingers.

After you do that for a few beads, try to add filler. I like to scribe parallel lines about 1/8" apart, add filler to make a puddle of that width, and move along. Each time you add filler, add just enough to make the puddle wide enough to fill the scribes. This helps teach you how much to dip.

But you're doing just fine really!
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Offline calj737

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Re: Thinking about buying a TIG welder
« Reply #33 on: September 05, 2017, 05:05:31 PM »
Fo your outside corners, try to leave less gap. You can almost weld that in a fusion manner. If you need filler, then you really need to use a rod the same diameter as the material thickness to insure sufficient weld fill.
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Re: Thinking about buying a TIG welder
« Reply #34 on: September 05, 2017, 05:12:35 PM »
 ;D
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Offline RainCityRider

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Re: Thinking about buying a TIG welder
« Reply #35 on: September 05, 2017, 05:26:25 PM »
I know what you're getting for Xmas, a grinder!  ;D

Of course I'm purely joking.  :)

A great way to practice is without filler rod. Simply establish a puddle on some 1/8" or thicker material, and move along watching the puddle. Try to advance 1/8", pause, advance, pause. Watch the metal as you go and try to have your torch hand propped and steady so you slide along gently with your forearm, not move the torch with your fingers.

After you do that for a few beads, try to add filler. I like to scribe parallel lines about 1/8" apart, add filler to make a puddle of that width, and move along. Each time you add filler, add just enough to make the puddle wide enough to fill the scribes. This helps teach you how much to dip.

But you're doing just fine really!

Thanks man!

I know I need a lot more work. I will do the no filler thing. Need to get more scrap though. Stuff goes fast! Gonna try to get an hour or two everyday or so.

When you say scribe do you just use an awl? Cause when you say fill the scribe it sounds deeper.

Holding the tig gun and sliding is hard. My hose is stiff. It got easier when I popped my collar and ran the hose around my neck. And I look way cooler with a popped collar. Can I get a tig gun or hose/line that is easier to handle for my welder?

Is it called a gun?

Also need to get a diamond wheel for my grinder. I trashed one of the wheels on my grinder

Lost a few inches (that's what she said) of Tungsten due to skipping around a couple deep grooves in the wheel and scrapping the side of the Tungsten. Good thing the guy I got the welder from sold me a whole box for $50, #$%* is Spensive!

Anyway, I will keep on trucking!



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Offline calj737

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Re: Thinking about buying a TIG welder
« Reply #36 on: September 05, 2017, 05:47:26 PM »
Yes, just use an awl.
Fill in between the lines- make your puddle the width of the parallel lines.
It's a TIG torch. You'll never progress calling it a gun  ::)  ;)
Hold it like you would your young child's hand- gently but in control. If you're struggling to slide, you're too tense in your grip. That's a very normal tendency.

I wrap my hose around my arm and sometimes over my shoulder depending upon the position I'm in, but almost always around my forearm. Be careful though, the hose gets hot!

CK Worldwide makes a "Superflex" cable that's much more supple and easier to manage. Get it in the 25' length.

Diamond wheel or Silicon Carbide (green) wheels work well. You don't need a lot of pressure on the tungsten to grind it or shape it- just spin it and let the wheel do the work. But they do wear grooves in your wheels pretty quick.

Snap a picture of your torch, cup and tungsten when you get a chance. And for steel TIG, use red or blue. But be aware, the red (thoriated) are radioactive slightly. So when you grind them, you're creating hazardous dust... I use 2% lanthanated for steel and often for aluminum. Sometimes (thick or heavy aluminum) I revert to a 100% (green) tungsten.
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Offline RainCityRider

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Re: Thinking about buying a TIG welder
« Reply #37 on: September 05, 2017, 06:05:14 PM »
Yes, just use an awl.
Fill in between the lines- make your puddle the width of the parallel lines.
It's a TIG torch. You'll never progress calling it a gun  ::)  ;)
Hold it like you would your young child's hand- gently but in control. If you're struggling to slide, you're too tense in your grip. That's a very normal tendency.

I wrap my hose around my arm and sometimes over my shoulder depending upon the position I'm in, but almost always around my forearm. Be careful though, the hose gets hot!

CK Worldwide makes a "Superflex" cable that's much more supple and easier to manage. Get it in the 25' length.

Diamond wheel or Silicon Carbide (green) wheels work well. You don't need a lot of pressure on the tungsten to grind it or shape it- just spin it and let the wheel do the work. But they do wear grooves in your wheels pretty quick.

Snap a picture of your torch, cup and tungsten when you get a chance. And for steel TIG, use red or blue. But be aware, the red (thoriated) are radioactive slightly. So when you grind them, you're creating hazardous dust... I use 2% lanthanated for steel and often for aluminum. Sometimes (thick or heavy aluminum) I revert to a 100% (green) tungsten.

I swapped to the #6 cup from the five and I think I like it better for now. Tungsten it thoriated. I hooked up my shop vac to suck as much a possible.




The #5 cup is what was on it when I bought it.


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Offline RainCityRider

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Re: Thinking about buying a TIG welder
« Reply #38 on: September 05, 2017, 06:08:02 PM »
I would have gotten a new #5 cup but they were out. Still need to get a #7 too.

Maybe I should get the non thoriated Tungsten. What would the difference be?


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Offline calj737

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Re: Thinking about buying a TIG welder
« Reply #39 on: September 05, 2017, 06:47:42 PM »
Skip the 6 and the 5 and just grab this kit for yourself:
https://weldmongerstore.com/products/tig-welding-accessories-ck-stubby-gas-lens-kit

A gas lens will make a huge difference. See the fouling on the end of your cup? Too little gas flow and too close to your piece when welding. Also, if you don't really clean the pieces, the welding process blows crap back at your tungsten and cup. So make it shiny before you Arc up.

Also, drop down to a 3/32" tungsten. THAT will make things a lot easier on you. I use it 99% of the time.
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Offline RainCityRider

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Re: Thinking about buying a TIG welder
« Reply #40 on: September 05, 2017, 09:34:19 PM »
Skip the 6 and the 5 and just grab this kit for yourself:
https://weldmongerstore.com/products/tig-welding-accessories-ck-stubby-gas-lens-kit

A gas lens will make a huge difference. See the fouling on the end of your cup? Too little gas flow and too close to your piece when welding. Also, if you don't really clean the pieces, the welding process blows crap back at your tungsten and cup. So make it shiny before you Arc up.

Also, drop down to a 3/32" tungsten. THAT will make things a lot easier on you. I use it 99% of the time.
The tip looked like that when I got it. But I'm with you! Can't seem to find the right superflex hose. they only have a 12.5' kit.
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Offline calj737

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Offline theDQG

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Re: Thinking about buying a TIG welder
« Reply #42 on: September 06, 2017, 04:40:08 AM »

Thanks man!

I know I need a lot more work. I will do the no filler thing. Need to get more scrap though. Stuff goes fast! Gonna try to get an hour or two everyday or so.

When you say scribe do you just use an awl? Cause when you say fill the scribe it sounds deeper.

Holding the tig gun and sliding is hard. My hose is stiff. It got easier when I popped my collar and ran the hose around my neck. And I look way cooler with a popped collar. Can I get a tig gun or hose/line that is easier to handle for my welder?

Is it called a gun?

Also need to get a diamond wheel for my grinder. I trashed one of the wheels on my grinder

Lost a few inches (that's what she said) of Tungsten due to skipping around a couple deep grooves in the wheel and scrapping the side of the Tungsten. Good thing the guy I got the welder from sold me a whole box for $50, #$%* is Spensive!

Anyway, I will keep on trucking!



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I agree with Cal here.. that's how I was taught too. Just focusing on creating consistent weld puddles of the same width and consistence (this leads to correct "stacking the dimes") before adding the rod. There's just a lot to keep in mind as far as trying to be consistent- the distance of the torch, the amount of power you're applying, etc.
« Last Edit: September 06, 2017, 04:42:48 AM by theDQG »
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Offline Davez134

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Re: Thinking about buying a TIG welder
« Reply #43 on: September 06, 2017, 09:33:22 AM »
Love this thread, lots of great info. I'm just getting started with TIG too.

Offline RainCityRider

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Thinking about buying a TIG welder
« Reply #44 on: September 06, 2017, 06:41:18 PM »
http://www.usaweld.com/17-Series-Air-Cooled-Miller-TIG-Torch-p/miller17seriestigtorch.htm
Thanks Calj737 ! Got that stuff on the way. You Da Man! Thanks for all the help!


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Offline RainCityRider

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Re: Thinking about buying a TIG welder
« Reply #45 on: September 06, 2017, 06:43:38 PM »
Love this thread, lots of great info. I'm just getting started with TIG too.
You get to learn from all of my mistakes!!


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Offline 754

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Re: Thinking about buying a TIG welder
« Reply #46 on: September 06, 2017, 07:42:33 PM »
Just get some hours of torch time in, the sooner, the quicker you get on to it..
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Offline calj737

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Re: Thinking about buying a TIG welder
« Reply #47 on: September 07, 2017, 03:22:22 AM »
Just get some hours of torch time in, the sooner, the quicker you get on to it..
There are many variables at play when TIG welding that makes it difficult to become "self taught" and weld properly. Pedal, travel speed, filler amount, rod size, tungsten choice, cup size, material thickness, direction of travel, material type...

Practice IS critical, but understanding certain things so you can practice properly is paramount. It looks really easy to do especially watching an accomplished Welder. But pick it up and have a go, and suddenly untying the Gordon's knot blindfolded while jumping from airplane becomes a much easier task. Especially when you're dealing with 2700* at your fingertips.
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Offline theDQG

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Re: Thinking about buying a TIG welder
« Reply #48 on: September 07, 2017, 04:19:00 AM »
Just get some hours of torch time in, the sooner, the quicker you get on to it..
There are many variables at play when TIG welding that makes it difficult to become "self taught" and weld properly. Pedal, travel speed, filler amount, rod size, tungsten choice, cup size, material thickness, direction of travel, material type...

Practice IS critical, but understanding certain things so you can practice properly is paramount. It looks really easy to do especially watching an accomplished Welder. But pick it up and have a go, and suddenly untying the Gordon's knot blindfolded while jumping from airplane becomes a much easier task. Especially when you're dealing with 2700* at your fingertips.

My teacher used to say "I'm only teaching you to understand what you're doing wrong."
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Offline calj737

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Re: Thinking about buying a TIG welder
« Reply #49 on: September 07, 2017, 04:57:18 AM »
My teacher used to say "I'm only teaching you to understand what you're doing wrong."
Man, don't I resemble that remark. I've also heard too many times, "I can explain it to you, but I can't understand it for you".  :D
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