[TheForge] Platen Table Dogs.

[Andrew Vida]

Make the dogs and send them out for heat treat.  Tell them to draw to 
RC35-37 - that will produce the toughest steel in 4140 and that will be 
VERY tough.  If HT isn't something you can do readily, pay someone to do 
it well.  It is worth the cost.  It will cost you less in the end.

	-Andy

Robert J Hill wrote:
> Chuck,
> No we haven't figured out why.  A one broke close to where it enters the 
> table and the other two just after the bend above the table.  As far as 
> our heat treating plans I have no idea.  Way too many deadlines to 
> address platen dogs.  When we get around to it I will try to let you 
> know what we end up doing and how it works.  Thanks for your input.
> Rob
> 
> On May 1, 2008, at 08:36, Chuck Robinson wrote:
> 
> Hey Rob,
> Did you figure out why the dogs were breaking?
> How are you going to heat treat the 4140?
> If you normalize the 4140 after forging, to refine the grain structure, 
> and then bake them for several hours after hardening them they should 
> last a long time.
> 
> Chuck
> _______________________________________________
> Manage membership or unsubscribe at:
> http://mailman.qth.net/mailman/listinfo/theforge
> theforge mail list group photo site is
> http://www.photoaccess.com
> Login:  blacksmithblacksmith at hotmail.com
> password:  anvil
> ___________
> 
> 
> 
> _______________________________________________
> Manage membership or unsubscribe at:
> http://mailman.qth.net/mailman/listinfo/theforge
> theforge mail list group photo site is
> http://www.photoaccess.com
> Login:  blacksmithblacksmith at hotmail.com
> password:  anvil
> ___________
> 
> 

-- 

	-Andy V.

no .sig
go .fig