If I wanted to fabricate Titanium components i.e. cam buckets, shims & collets etc which type of titanium would I need to use?

Mark A

 

you don't want to make Ti cam followers (I mean really don't), and I would be very impressed if you can make the collets, as they are small and fiddly, and the weight saving not worth it, I wouldn't even bother with the shims either.

Retainers are okay though, and you want to be using 6AL 4V.

A search on 22b.com would have got your answers too!

Paul

 

Yup, there's not much that will pick up and gall like titanium does. Not a material for use on parts that see relatively movement. Even Ti screws can be a pain with galling.

 

Galling - A skin sore caused by friction and abrasion, nice I can do without any more of them.

OK idea selved.

Mark A

 

Works well on valvespring retainers though! (no rubbing parts).

If you don't already, get an STI valvetrain, hollow inlet valves and soduim filled exhaust valves, light followers and under bucket shims.

Paul

 

mate, Ti is an incredibly hard material to machine. I would be really impressed if you made anything out of the ol' gray stuff without a really posh CNC machine to do the work. Even manual lathes/mills will have a tough time dealing with it. Unless you seem to have found an infinite supply of TiNi and Diamond-tip tooling bits? Not to mention loads of time.

 

carbide tipped tools are cheap and easy to get, it's not that hard to turn. Even solid cobalt tools are much cheaper these days. Any good sized lathe will be able to turn something in 35mm Ti bar.

paul

 

wow, seems i had more respect to Ti than it was due. Thanks for the pointer Pavlo. I stand corrected.

 

Alloyed Ti is tough, don't get me wrong, noticably worse than stainless, but definitely doable. Comercially pure Ti is quite soft, but not good mechanically for high stress parts.

Paul