Thread: what brands of razors are still being made like dovo,dorko,filiarmonic,boker,henckle?

Originally Posted by Geezer

That is great for knives and the lovely hollow grinds they often get. You have all seen vids of harmonic vibration getting out of control. If a thin razor "sings" that is vibration and if it happens during a grind the sing is modified into a harmonic oscillation which, unfortunately will twist and wiggle the blade. When that happens, the blade will basically explode. The touch of a master grinder detect any vibration other than abrasion and modifies the stroke and speed of advance. A pre-hardening grind would be a different story and the metal is not hard.

So even renewing a blade, if I hear a singing I "STOP' and do a different approach.

Here's a video of the singing vibration on a plate. Imagine a XXii razor!

https://www.youtube.com/watch?v=YedgubRZva8

YGMV= your guess may vary
~Richard

That is the "code" on the ceiling of Rosslyn Chapel. It's called cymatics.
Cymatics - Wikipedia, the free encyclopedia