Hello Paul

just wondering if you received the pics of my engine with the titaniun studs in it ? I would appreciate any ideas you might have. I talked with a few people at Timet here in Nevada.one of the gentleman I talked with was head of plant operations some white coat with an accent nice man. I told him what I wanted to do with the studs and asked about thermal properties and he assured me that I had the right material for the job (6al-4v).I was worried about expansion rates and harmonics. Though I'm not sure of the harmonics issue. He was adament that even though titanium is a very hard metal it does stretch and that the iron aluminum sandwitch that we have in the rotary engines will expand faster than the titanium, the pressure would'n't be so great as to warp the block unless they where over torqued. Let me know what you think.

Tony

Yes I did. Did  you did not see them?
I am still thinking about it.

Old message
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Subject:             Titanium studs
       Date:             Fri, 01 Apr 2005 16:09:43 -0800
       From:             ACRE <rotaryeng@earthlink.net>
 

Hi Paul

Just wanted to share a picture of my engine with the titanium studs in it. The nut that you see on the back is a 3/8-24 aircraft nut and the threads are rolled. The material is 6al-4v grade-5. I'll let you know how they are working out when we start running the thing. I e-mailed you the other day to see if you had anymore manifolds I sure could use one of those. let me know when you get the chance.

 thanks, Tony

Wow! That is interesting Tony. I will have to think about that.
Saves a bit of weight for sure. It would be really trick if
you went up on the size like the Aussies do. I'll have to check
the modulas of elasticity and the coef. of thermal expansion.
Might be the cat's meow.

Paul Lamar
 
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