Aug 23, 2007 #1 QAFitz Materials Jul 21, 2005 121 Are there any secrets or precautions when machining tungsten that we should know about? Other than avoiding scrap, what are the pitfalls?
Are there any secrets or precautions when machining tungsten that we should know about? Other than avoiding scrap, what are the pitfalls?
Aug 23, 2007 #2 KENAT Mechanical Jun 12, 2006 18,387 Not machining as such but for large pieces be carefull of it bowing under it's own mass. We had a piece of tungsten several inches in diameter, several feet long. It was shipped to us on chocks, supported near each end. We left it laying around a little while. When we went to use it it had a pronounced bannana shape! We turned it upside down, left it a few days and while the bow didn't vanish it did deminish slightly. I never did a stress analysis to see if it really did deflect under its own mass but that certainly seemed like what had happened. Can't say more. KENAT, probably the least qualified checker you'll ever meet... Upvote 0 Downvote
Not machining as such but for large pieces be carefull of it bowing under it's own mass. We had a piece of tungsten several inches in diameter, several feet long. It was shipped to us on chocks, supported near each end. We left it laying around a little while. When we went to use it it had a pronounced bannana shape! We turned it upside down, left it a few days and while the bow didn't vanish it did deminish slightly. I never did a stress analysis to see if it really did deflect under its own mass but that certainly seemed like what had happened. Can't say more. KENAT, probably the least qualified checker you'll ever meet...
Aug 24, 2007 #3 KENAT Mechanical Jun 12, 2006 18,387 Doesn't look like you're getting many responses, maybe try posting (with a link to this one) in forum281 KENAT, probably the least qualified checker you'll ever meet... Upvote 0 Downvote
Doesn't look like you're getting many responses, maybe try posting (with a link to this one) in forum281 KENAT, probably the least qualified checker you'll ever meet...
Aug 24, 2007 #4 btrueblood Mechanical May 26, 2004 9,927 We always ground or EDM'd our tungsten parts. It is such a brittle material with large, woody grain and poor fracture toughness, that our M&P people had a lot of concerns regarding hidden fatigue damage. Upvote 0 Downvote
We always ground or EDM'd our tungsten parts. It is such a brittle material with large, woody grain and poor fracture toughness, that our M&P people had a lot of concerns regarding hidden fatigue damage.
