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Up Topic Welding Industry / Technical Discussions / Titanium & SS
- - By Milton Gravitt (***) Date 07-22-2015 16:36
Can you join SS to Tianium by GTAW process.

   M.G.
Parent - - By aevald (*****) Date 07-22-2015 16:53
Hello Milton, I am going to say no. reason being you cannot often join different types of titanium to one another without metallurgical issues (for various grades of titanium you are required to use specific matching filler metals). Now there might exist the possibility of brazing or soldering these two together without issue, but here again, not quite sure as I am not familiar with this area. I hope others are able to shed better and more specific light on this for you and I look forward to being educated in the process. Good luck and best regards, Allan
Parent - - By willseals (*) Date 08-01-2015 16:58
I am going to venture to say this being applied to the nuclear field and the nitric acid piping being tied in to the dissolver vessel (made from titanium) to carry the spent fluid.
Direct friction welding can be used but you have almost no bend ductility unless you use post weld heat treatment.  Depending on the exact application direct friction should get you there.
Parent - By CWI555 (*****) Date 08-01-2015 17:39
Where did you get the idea it was tied to the nuclear field if I may ask?
Parent - By Lawrence (*****) Date 08-02-2015 14:27
You say friction welding "can be used"

Ok

Is it actually being used this in service this way?

Or is this a guess of yours ?
Parent - By kcd616 (***) Date 08-02-2015 15:48
I think both Lawrence and Gerald make good points
when we did nuke plants
we welded titanium and SS but NEVER to each other
and most prints for nuke plants are recycled from the 1950's and 60's:eek::roll::red:
mil stuff can not speak about that changes daily:eek::twisted::evil:
and from personal experience if fluor even heard of this they would stop the job in a heartbeat:razz::surprised::roll:
just my thoughts and experiences
sincerely,
Kent
Parent - - By Lawrence (*****) Date 07-22-2015 18:28
Hi Milt!

No,  They cannot be joined with quality and consistency with GTAW.
Parent - - By kcd616 (***) Date 07-22-2015 18:48
Lawrence,
I thought so
any ways they can be welded with quality?
sincerely,
Kent
Parent - By PlasmaHead2 (***) Date 07-23-2015 02:33
Explosive welding.
Maybe some of the friction processes?
Parent - - By electrode (***) Date 07-22-2015 19:35
I agree with Allan, Lawrence and Ken.
Welding - negative.
I was promptly tempted to say - if even anything thermal - then 'brazing'.
And there was actually something done in this direction.
With half-decent results however.
See: https://app.aws.org/wj/supplement/WJ_1993_12_s537.pdf
It very much depends on what you finally need to obtain as the joint's quality.
Parent - - By aevald (*****) Date 07-22-2015 19:38
Thanks electrode, I am going to need to read that article fully when I have more time, interesting indeed. Appreciate your inclusion of it here. Best regards, Allan
Parent - - By Milton Gravitt (***) Date 07-22-2015 20:17
I haven't heard of joining the two but I never was ask the question until today so thanks guys.

      M.G.
Parent - By welderbrent (*****) Date 07-22-2015 22:46
Several years ago the Ruger plant here in Prescott, AZ had three divisions: Golf Clubs, Guns, and a Marine Division.  In Marine and Golf clubs they were using PAW (Plasma Arc Welding) to weld titanium, marine components and golf clubs.  BUT, my question based upon your question is were both parts titanium or was one something else? 

Anyway, thought that might be worth looking into to see if it were possible using PAW.

He Is In Control, Have a Great Day,  Brent
Parent - By js55 (*****) Date 07-23-2015 13:59
I think overall metallurgically the problem is fusion arc welding. Theoretically a process such as friction stir welding could accomplish bonding.
Parent - By fbrieden (***) Date 07-23-2015 01:48
More information required.
Parent - - By CWI555 (*****) Date 07-23-2015 11:29 Edited 07-23-2015 11:46
Not usually wise. However, diffusion bonding/welding has had some good results.
Ediit Was trying to get a file uploaded, but it's to big. The Google address is here;
https://www.google.com/url?q=http://www.jwri.osaka-u.ac.jp/publication/trans-jwri/pdf/412-02.pdf&sa=U&ved=0CAsQFjAAahUKEwjc04jalfHGAhVDaT4KHf56A3Q&usg=AFQjCNEftQJskCwh0cA5u5h5ic4xOVG8fQ

Search string here
jwri osaka stainless titanium
Parent - By kcd616 (***) Date 07-23-2015 13:47
Gerald,
most interesting read
thank you
sincerely,
Kent
Parent - By willseals (*) Date 08-01-2015 16:59
I am going to venture to say this being applied to the nuclear field and the nitric acid piping being tied in to the dissolver vessel (made from titanium) to carry the spent fluid.
Direct friction welding can be used but you have almost no bend ductility unless you use post weld heat treatment.  Depending on the exact application direct friction should get you there.
Parent - By 46.00 (****) Date 08-02-2015 21:56 Edited 08-02-2015 21:58
Can you join SS to Tianium by GTAW process?

NO! Simple!
Up Topic Welding Industry / Technical Discussions / Titanium & SS

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