RokJok
Gold Member
- Joined
- Oct 6, 2000
- Messages
- 4,188
Over time I've bumped into blades that ring, what I call singing, when exiting into free air from a diamond rod (with a handle, like a chef's steel) as I stroke them rapidly on the rods to sharpen them. I suppose my physics friends could explain it as a harmonic frequency within the blade. All I know is that it's a thing of beauty when it happens. It seems to happen moreso on thin, pretty much parallel sided blades that feel reasonably to extremely hard sliding along the diamond rod's surface. Extremely soft steels that feel smeary and more heavily tapered primary grind blades don't do it.
In the attached picture the unmarked aluminum handle knife with a very short hollow ground secondary grind sang a fair bit and the Ikea knife to a lesser degree. I've got an old nakiri that is very inclined to sing.
Anybody else hearing the steely music?

In the attached picture the unmarked aluminum handle knife with a very short hollow ground secondary grind sang a fair bit and the Ikea knife to a lesser degree. I've got an old nakiri that is very inclined to sing.
Anybody else hearing the steely music?
