Aebl 64rc 4" paring/boning knife

Edge geometry shot for a few test blades. Off-center-focus choils are actually thinner than pictured.
G3QijHa.jpg
 
Thanks. I like to slice fruits with very thin knives - I integrated eating as part of knife testing :)
Really like that blade pattern

In progress: 1 Aebl blades aims for a stable edge 65rc. A test XFinit blade will piggy ride a long for this experiment ht aust at 1975F. Cool to get zfinit stable at 59+rc - actually hoping for a 61+rc. Super Quench + Cryo, here they go - a small chance of *ping, ping*.

edit 16:10PST: accidentally dropped the hot aebl blade straight onto the bottom of the SQ bucket - arrrggh, not good. zfinit got proper SQ.

edit 18:01PST: aebl AQ 65.5rc; failed to straighten, so test blade is now 2" long :(. 64rc after tempered. The broken tip half still at 65rc - I suspected I start straighten too soon (not temper long enough), that is why this piece stay at 65rc. Well, I will give aebl 65rc another shot tomorrow.

edit 18:30PST: aebl (#7) 64rc. Passed all tests with edge geometry - ~0.005-0.007" BET, 7.5dps and 12-13dps micro bevel. Edge failure mode is mixed between micro rolled and chipped. I am wondering if the edge was over heated during blade bevel grind. 60 ceramic belt was relatively dulled and vfd at power power. No finger burning nor steam puff but since I expect edge failure be major or micro chip at 64rc. Unless RA% is still high. Oh well, just thinking out loud....

Pic might worth a bit more than my rambling neurons...

Edge rippled and chipped at the same time.
cgXhiDz.jpg


edit 20:10PST: zfinit 56rc -> failed. Either under-soak (only 10 minutes at 1975F) or over heated. Will try again 1950F 20 minutes.
 
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