I think the original thinking was that if a blade was hardened and then sharpened, the very act of sharpening could cause plastic deformation of the edge resulting in the edge being de-tempered.
However, that does not appear to be the case. Total roll is actually less on blades sharpened after hardening than the blades that were not post-sharpened.
The thing I notice most that there is little significant difference between the hardened and rolled, and the hardened, sharpened rolled blade sets. Actually the blades that were sharpened after hardening rolled slightly less indicating that sharpening does not negatively impact roll resistance. (Mr. Reich told us that a long time ago).
I didn't calculate the the initial sharpness/sharpness after roll percentage differences between the two sets of blades or all of the other stats the could possibly be gleaned, however there does not appear to be enough significant difference for real-world use between the two sets of blades to indicate anything noteworthy.
I'm getting the idea that, even though it's really tempting to think that it is, the hardness difference between HRC 50 and HRC 62 blades is just not enough to make a significant roll resistance difference in real-world use of knives. Furthermore, HRC =>60 blades are harder to sharpen and more prone to chipping even if they may be easier to deburr.
However, that does not appear to be the case. Total roll is actually less on blades sharpened after hardening than the blades that were not post-sharpened.
The thing I notice most that there is little significant difference between the hardened and rolled, and the hardened, sharpened rolled blade sets. Actually the blades that were sharpened after hardening rolled slightly less indicating that sharpening does not negatively impact roll resistance. (Mr. Reich told us that a long time ago).
I didn't calculate the the initial sharpness/sharpness after roll percentage differences between the two sets of blades or all of the other stats the could possibly be gleaned, however there does not appear to be enough significant difference for real-world use between the two sets of blades to indicate anything noteworthy.
I'm getting the idea that, even though it's really tempting to think that it is, the hardness difference between HRC 50 and HRC 62 blades is just not enough to make a significant roll resistance difference in real-world use of knives. Furthermore, HRC =>60 blades are harder to sharpen and more prone to chipping even if they may be easier to deburr.