Frizzen tempering

[Mr. Bubbles]

I'm about ready to start engraving my (Chambers Large Siler) frizzen.  As I recall, the process is to heat it to cherry or bright red, and then let it air cool slowly.  That yields a dead soft frizzen for engraving.  Then when that's done, re-heat to cherry red. and quick quench in mineral oil.  Now stick it in the oven at 375 degrees for about an hour, and the temper should be correct for a frizzen.

Do I have it right?

Any reason the same shouldn't be done to the cock or cock jaws?

[stubshaft]

Sounds about right to me.  That's the way I'd do it unless I had to caseharden the frizzen then it would get a coating of Kasenit.

[Mark Elliott]

You have it about right.  You may have to put the frizzen in something like Pearlite (i have a popcorn tin full of it that I use to anneal medium size parts) to anneal.    Usually,  air cool is still too fast.   For really small parts,  I have to use the heat treat oven to anneal them.   

[David R. Pennington]

I would do as Mark said and bury it to cool, I keep a bucket of wood ash handy for that. It may harden back some air cooling and you want it dead soft to engrave.