Now for the hardening process. Ok, I normalized the blade and then let it cool a couple of hours while I took care of some bidnez in my library. Then I decided to add some satanite clay to the spine and help with getting a hamon line. I like me some hamon lines
Anyway I think it may have some pattern on it. It's in the oven now for 2 hours and the first cycle. I like to do 3 tempering cycles to get the grain structure as small as possible and better edge holding easy sharpening. Twice at 400 deg and third time at 375 deg.
On file checking the edge is hard as times in 29. Blade stayed perfectly straight and I think the normalizing or equalizing the grain structure has all the credit since 1095 is prone to warp or crack if hardened while the metal is still stressed.
I quenched this in Parks 50 fast oil and the clay just slipped right off with minimal effort. I have found that quenching in brine makes the clay stick to the blade and much harder to get off.
Anyway I think it may have some pattern on it. It's in the oven now for 2 hours and the first cycle. I like to do 3 tempering cycles to get the grain structure as small as possible and better edge holding easy sharpening. Twice at 400 deg and third time at 375 deg.
On file checking the edge is hard as times in 29. Blade stayed perfectly straight and I think the normalizing or equalizing the grain structure has all the credit since 1095 is prone to warp or crack if hardened while the metal is still stressed.
I quenched this in Parks 50 fast oil and the clay just slipped right off with minimal effort. I have found that quenching in brine makes the clay stick to the blade and much harder to get off.
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