Do's and Don'ts of TIG Welding Titanium
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- čas přidán 27. 07. 2024
- #welding #welddotcom #tigwelding #titaniumwelding
There is so much that goes into TIG welding with Titanium. Jeff Ray from Superformance Fab is back to give you some tips on what to do, and what NOT to do when working with this process and material. Have you had the opportunity to work with Titanium yet in your career?
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Another great video Jeff!
In order to determine correct interior purge time, you need to know the volume of the vessel you're welding. That changes based on the diameter and the length. The formula for the volume of a cylinder, like the one in the video is: Volume=πr²h or Pi x Radius Squared x Height. If that tube is 4" diameter and say 12" long for example then: π2²12= 150.8 Cubic Inches of Volume. Our regulators measure flow in Cubic Feet per Hour, or CFH. To convert our volume in cubic inches to cubic feet, we multiply our cubic inches by 0.000578704 (or divide by 1728). 150.8/1728= 0.0873 cubic feet of volume. To convert our CFH to CFM (Cubic Feet per Minute) we multiply by a factor of 0.0167. So a rate of 25 CFH is equal to 0.4175 CFM. Therefore at 25 CFH, that cylinder should be completely purged in about 12.5 seconds (0.0873/0.4175=.209*60{seconds}=12.54). That is, of course assuming that the air can escape at the same rate as the argon is being introduced... yay math!
How did a comment made 2 weeks ago appear here on Feb 3rd?🤔
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Most likely I'll never weld titanium, but the class was superb. Thank you.
We need a lot more of Jeff. He’s the best host.
Thank you man very much appreciated and thank you for reaching out
According to my math... Volume of inside of pipe = π•R² (3.14x 2x2 ) =12.56 sq in x L (14) = 175.84 in³. Volume of gas from regulator in 1min at 25CFH = 25cfh ÷ 60min = 0.4166 CFM x 1728 in³ per ft³ = 719.88 in³. Now 175.84 ÷719.88 = .244 x 60sec = 14.65 sec to fill that tube (air turbulence and mixing not factored in) your pipe looks to be about 14in long and 4in OD, so one minute is a pretty good guess !
great stuff Jeff...really shed some light in Titanium......
I’m an aerospace welder, I tend to do a lot of titanium. I rigged up a tig finger to my tig cup that drags behind the weld and traps the argon. This allows me to weld much farther without stopping. Nice lesson
well done Jeff Ray, Cheers, Paul
He did a great job!
Always enjoy watching you work!! 🤘🏻🤘🏻
Great video. I am preparing to start welding Ti and I have come to the conclusion that I will be doing it inside a purge box.
First and where’s bob
Excellent! What type of Filler Rod were you using?
X2
Thanks for sharing and yes, we do need more gems like this ! 🤩
Excellent class young man . Thank you.
This was super helpful my dude thanks
Good information Jeff, you didn't show what was on the end of the purge line, I usually use a pneumatic muffler to diffuse the gas, although not required it does work well and is inexpensive.
Thank you and your right i didnt talk about that in this video it was an open ended piece of rubber hose but in previous videos ive shown my process endcaps that have a diffuser built into them in previous video. It would be good idea to go ahead and throw one on the hose so it will have one.
Exelente trabajo amigo, muy profesional, saludos desde Santiago de chile
Great video man just gotta go pick up some titanium now!
Interesting stuff. I have several critiques that might help you become a better instructor though Jeff.
1) You didn't mention how long your preflow and postflow were. We need to know that stuff.
2) Polarity. I assumed you meant DCEN, but wasn't certain until I read the comments. That needs to be covered as well.
3)At 3:50 you said "Evacuate all oxygen." I honestly don't know if it's just Oxygen you're worried about or other elements in air. Are there specific gases we need to keep away from the metal, or is it just air in general?
4)When titanium is cooled enough to keep going, is that when the glow has completely gone away or do we need to wait a few more seconds?
5)Filler metal was never covered anywhere in this video. That has to be covered.
Thanks man appreciate it. In the moment i do tend to forget that i need to be more specific when elaborating on things it something i am working on and are getting better with as i shoot more. Thanks again man
Can you tell me what material was the filler rod please
The filler wire used was .039” CP1. Thanks for watching
I'm not a pro but I managed to get very good structural welds on a.c. but super important was to use a Virgin s.s. brush and 99% i.p.a. for pre cleaning and get a good back purge. I was just using a # 7 pink cup but I didn't have to have the tungsten dangling so for out in the breezes. I did this hundreds of time and had great success. I'm not a pro but just thought I'd say what worked for me.
Thanks
Need to keep your rod under the gas. What's the point of keeping the weld clean when you pull the rod out from under the gas coverage and put that back into the weld? It will still look silver, but still adding contaminated metal everytime that rod comes out from the gas
Does titanium need that much stick out? Also what tungsten composition and grind angle do you recommend?
No it doesn't, there isn't anything about titanium that a particular "blend" would provide an advantage. Use what you prefer for DC welding.
So correct me if I'm wrong but aren't you suppose to have respiratory protection with titanium for the gas it releases when welding????
When you weld anything I believe, there is toxic gases released. As far as it goes for titanium which gases specifically are released. Thanks for reaching out
Just looked it up osha requires "full face piece" the files listed as titanium dioxide didn't know that was a thing msds lists basically common elements and is as useful as always. But not one mention of the old timer "quick weld trick" drink milk to coat your stomach or just use charcoal filters hmm. But ya suppose to use full face piece even 3m quotes osha regs on their site. Thank you now I know for myself and not what I've been told.
Nice. But Why the enormous wolfram stickout when you want good gas coverage.
my thought as well, maybe for filming...
I feel in relation to the cup width the tungsten stick out is what i look at. Using the tip of my tungsten sticking out half the distance of the cup diameter being almost an inch, i would stick my tungsten about a half inch out and when i use a number 7 cup that about half an inch wide, i would stick my tungsten out about a quarter of an inch. Just an example of another way. And with the size of the cup it be difficult to see the tungsten too so thats why they make clear cup as well. Id i had the tungsten pulled in some it would be hard see it especially if it was a ceramic cup.
It welds just like stainless you just need a really good purge and a trailer on your rig and to hold the flow after you stop for like 10 sec people over complicate stuff sometimes lol
Minimal heat input, less than stainless, and maximum argon coverage, more so than stainless.
Any more coulour than a gold tinge around the weld, and a silver weld bead equals no good. Not if you want the titanium to keep it's properties👍
👏👏👏👏🇧🇷
Thanks for watching
DC STREIGHT POLARITY or DC REVERSE POLARITY??
No ghosting or its scrap😄 can't be colorblind in most places I know
U must trying do first from the bottom pipe
Why dont weld it in a full closed box or bed whit marbeles can cool a little an purge is pure clean
And like me you love the green 🤝
hey!!!!
WHERE THE F IS BOB? ✊
Only thing i dont like about welding is spending money on the consumables. Titanium requires so much argon!
It's best to use a Lot of Chlorine and Clorox when cleaning your Titanium 🔥🚒🔥