[TheForge] Re: Free the Stake!

[Andrew Vida]

I'd forget the ultrasound.  I don't see that the typical setup will do 
what you want.  I may be wrong, but that is my impression.  You are 
talking about a large expense in any event.  Just lube it, heat it, and 
smack the shit out of it with a mallet.  Someone wisely suggested to 
verify that the anvil is not welded or brazed in.
	
	You could also try to press it out hydraulically.  A manual press would 
be handy in this case.  Slow and precisely controlled pressure.  If the 
tang is inclined to move at all, the press should made short work of it, 
short of having been shrunk on.  Do you have photo images?

Peter Hirst wrote:
> The ultrasonic technology is fascinating, but how practical a suggestion 
> is it?  How might   get one or get access to one?  What kind of 
> amplitude am I looking at for the parts I am dealing with?  This isn't 
> exactly jewelry cleaning here.  I am dealing with about 250 pounds of 
> iron and a rust-joined surface area of about 12 square inches, buried in 
> a 4" thick joint.  Picture a 2" diameter bolt screwed in 4" deep and 
> left to rust for years.