Re: Keeping sharps sharp - a foray into knife-sharpening
Originally Posted by
Mark Kelly
As the
sharpening guru says, a sharp edge is simply two polished faces that meet at an angle.
If one surface is less polished than the other (higher Ra) then the edge itself will be slightly serrated in the plane of the cut whilst there will be a plane almost orthogonal* to this where the edge is straight. I can see situations where this would cut very well.
*logically the angle will be 90 degrees minus half the included angle of the blade.
While more pocket knife or bushcraft knife related than for kitchen knives, I've read blogs and watched videos where people suggest things like that. Rough grind on one side with high polish on the other for a best of both worlds approach. Or approaches like sharpening to a high polish very keen edge from tip to belly for delicate work with a rougher grind for more bite from belly to tang.
"I guess you're some weird relic of an obsolete age." - davids
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