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Thread: Finishing titanium?
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10th Mar 2012, 09:28 AM #16Philomath in training
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What size/ shape/ grade piece do you want Pete? (I hope you're not going to try and replace that turbine blade you broke the other day at work with a home made version?)
Michael
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10th Mar 2012, 01:01 PM #17Most Valued Member
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Hey Michael, the reason there's no rush is because I'm going to make some titanium fasteners. No biggie except they have socket heads, so I first need to make the rotary broach.
Given that both have been on the agenda for at least 2 years I reckon they should be done by around 2015
Pete
Edit: Hmmm, yes maybe I'll intentionally do a hot start at work, cook an engine, then offer to buy the resultant scrap off them. Good thinking!!
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10th Mar 2012, 05:53 PM #18Philomath in training
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Good luck with that plan - of all the things I'd want titanium for making fasteners is not one of them. Apparently it work hardens so I reckon doing the screw threads would be a nightmare (followed closely by the sockets).
You could buy them and save that frustration up for a project that really deserves it - RS components have them in their catalogue for one.
Michael
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10th Mar 2012, 07:53 PM #19Most Valued Member
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Michael I've been having trouble finding the precise ones I want, but RS is a good tip. They're normally not a cheap source, but certainly do have a lot of gear. I'll check them out, thanks for the tip.
Pete
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11th Mar 2012, 09:18 AM #20
If you chaps are after a source of titanium closer to home then Airport Metals Australia stock a range of titanium rod and sheet. They are located at Tullamarine in Melbourne, and do have a minimum order of $100. They stock other metals also (check the online stock guide), and upon request will forward a price list. Prices I have found to be fair, given that the materials come with a spec sheet and traceability.
No connection with these guys other than as a customer through work.
Cheerio
Tom
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11th Mar 2012, 04:38 PM #21New Member
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I think that titanium is one of the most abundant ores in the World. Any Titanium work hardens very quickly, you need a VERY sharp tool and take positive cuts, don't think that you will be able to take a fine cut with a blunt cutter.
A friend of mine makes dental implants for a living from Ti to incredibly close tolerances and he uses well honed HSS. Sharpen and hone!! I don't think the abrading will work too well but it would be worth a go.
Best of luck!!
cheers
Bill
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23rd Nov 2020, 12:59 PM #22
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23rd Nov 2020, 08:45 PM #23
For anyone reading this thread, using Russian/Latvian titanium: see if you can find someone with a Geiger counter and take your titanium with you.
It turns out that enormous amounts of titanium have been removed from Chernobyl and it's surrounding abandoned warehouses.... A couple of my German hobby machinist friends have had their "affordable buys" of ti checked and were horrified at the remaining amount of radiation in some of their treasures....Cheers, Joe
retired - less energy, more time to contemplate projects and more shed time....
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23rd Nov 2020, 09:34 PM #24Most Valued Member
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Hi Joe,
I'd be interested in the mechanism as to how the titanium from Chernobyl becomes radioactive. Does it contain trace radioactive nuclide impurities?
Simon
Sent from my SM-G970F using TapatalkGirl, I don't wanna know about your mild-mannered alter ego or anything like that." I mean, you tell me you're, uh, super-mega-ultra-lightning babe? That's all right with me. I'm good. I'm good.
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23rd Nov 2020, 09:52 PM #25Diamond Member
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Nothing like a really old thread resuscitated, but just on the availability of Titanium. I'm not sure of how much the Americans have but it has been well documented that they set up a lot of "front Companies" in order to purchase enough of the stuff to build their fleet of SR71 Blackbirds. As far as I know they bought it from the Russians, who must have felt a bit peeved when they realised, much too late, what the yanks were up to.
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23rd Nov 2020, 10:12 PM #26
Simon: I don't know the physics or chemistry, but pretty well everything within 100km of Chernobyl has significantly more radioactivity since the explosion. It's not a big deal if it's alpha or beta radiation unless you ingest it breathe in dust from it. But some metals have changed some of their molecules as a result of neutron impacts and have become gamma radiators. And that could cause mutations in cells....
Cheers
JoeCheers, Joe
retired - less energy, more time to contemplate projects and more shed time....
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23rd Nov 2020, 10:15 PM #27Most Valued Member
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Thanks Joe. Thats interesting.
Cheers mate.
Simon
Sent from my SM-G970F using TapatalkGirl, I don't wanna know about your mild-mannered alter ego or anything like that." I mean, you tell me you're, uh, super-mega-ultra-lightning babe? That's all right with me. I'm good. I'm good.
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23rd Nov 2020, 10:18 PM #28
Simon: yes, that is what they are. Radioactive nucleotides.
Cheers
JoeCheers, Joe
retired - less energy, more time to contemplate projects and more shed time....
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