[TheForge] Tungsten

[James Binnion]

Inconel 718 will most likely work, Inconel 740 would definitely work  
but much harder to find so would Nimonic 90. None of them are cheap  
or easy to find but I have had good luck finding Inconel 718 from  
High Temp Metals http://www.hightempmetals.com at prices that are not  
too horrible. You can get data sheets on these alloys at http:// 
www.specialmetals.com/ Special Metals is a primary producer of these  
alloys and will want to sell you a huge amount but there is good data  
available on their website. you will want to build up agood oxide  
layer on the surface of these metals before using them as a punch.  
That oxide layer will keep your steel from sticking to it, also a  
coating of boron nitride as a lubricant will help.

Jim

On Jan 1, 2006, at 7:10 PM, Ralph Sproul wrote:

> Hochewa, Thanks for the reply - and I definitely second Steve's  
> question in
> what alloys might be considered good for this slit/drift process in  
> a press?
>
> Ralph

James Binnion
jbin at well.com