Recommendation, please

C

'cacci

Joined
Jul 24, 2008
Messages
51
I'm starting a few new filet knives. They will have hidden tangs,about 5/16" tang width at the blade end, and I'll be grinding 1/16" x 3/4" stock for a 6" blade of cpm154. I've done ok with a 58Rc so far, I.e., no broken blades that I know of. Can I up the hardness some and keep flexibility?
Thanks for any advice.
'CACCI
 
Flexibility is not a function of the hardness. The flexibility of a knife is the result of how thick or thin the stock is. If your blade flexes at 58 Rc, it will still flex if run a little harder. As for the hardness, cpm54 should work well at Rc 61 for your application.
 
What Adam said. These are skivving knives a specialized leather working tool. Not too dissimilar though to a filet knife. RC numbers are written on blades by Peters after heat treat and RC testing. AEB-L steel.052 thick. 63 was my target goal for these leather knives. Hardness does not affect flexing as the pic shows. Post ht grinding to do on these blades yet.

3GDh3mQ.jpg
 
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