heat treat engraved blades ?

[SVanderkolff]

I am currently involved in a project with Mr Riccardo which will require that the blades for the knives be heat treated after engraving. This is something I have never done before. Do I need to send the blades out to someone who heat treats iin a vaccuum and if so who would you recommend? How is oxegen free heat treat different from heat treat in a stainless envelope? What do the blades look like after coming out of an oxegen free heat treat?
So many questions, thank you for your patience.
Steve

 

[Robert Mayo]

Steve
When i first started making knives Jim Downie recomended these folks and i think he still uses them. Sorry i can't give you any more info.

Bob
http://www.alliedheattreat.com/

 

[james terrio]

What do the blades look like after coming out of an oxegen free heat treat?

I've had blades made of 440C, CPM-154, CPM-3V and CTS-XHP treated by Peters' HT in an oxygen-free furnace. They all came back very clean with just a light bronze color on the surface that comes right off with 2000grit paper. You might even be able to just buff it off, I never tried that.