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alpha434 |
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My member number is no coincidence. ![]() ![]() ![]() ![]() Group: Members Posts: 3,154 Joined: 16-December 05 From: Denver, CO Member No.: 5,280 Region Association: Rocky Mountains ![]() |
I intend on making myself titanium connecting rods. Don't tell me its a bad idea. I'm already set on doing it. BUT, I want input on the exact shape. I'm assuming that the structure has to be a little different to downplay brittleness in titanium. Porsche factory did titanium. Does anyone have one that could take a picture for me?
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J P Stein |
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Irrelevant old fart ![]() ![]() ![]() ![]() ![]() Group: Members Posts: 8,797 Joined: 30-December 02 From: Vancouver, WA Member No.: 45 Region Association: None ![]() |
Stuff I think I know bout Titanium:
Expensive in aircraft grades. Notch sensetive, but sure as hell not fragile. Fragile don't cut it when you're trying to hold back 100K lbs of thrust. Sensetive to the Halogens but only in hi-temp (over 600 deg F) service. Special cutters required...not to mention feeds & speeds. Heavy duty machines are needed. Ti wears these out pretty quickly. Heat treat with vacuum furnace. Alpha case is a killer.....if you don't know what Alpha case is, you better find out. UT, Xray & penetrant insp for NDT. Billet sux for rods.....and most hi strength parts. Read up on grain direction Forgings are REAL expensive and the lead time is about 2 years for a die.....maybe less for a smaller one. Russia has most of the raw material.....a big percentage. The outfit I work for machines hundreds of tons of the stuff per year......mainly because few biddensses want to screw with it.......expense of materials is the main bug a boo. We machine forgings that cost over 100k American....minus shipping (IMG:http://www.914world.com/bbs2/html/emoticons/biggrin.gif) Good luck. |
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