I found it, I found it, I found my Temper line!

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Exciting huh
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Well it is for me anyway. I have tried about five times and no luck. However today the knifemaking gods were smiling upon me.
I am using 5160 doing a differential temper using Olive oil. After taking the blade to 400 grit, I let it soak in diluted Radio Shack etchant for 2mins and scrubbed it wet with a Grey scotchbrite cloth. Then I put it back for another 2mins. I then and scrubbed it lightly with Grey Scotchbrite using Baking Soda to the finish I liked. What a beautifull sight as the Temper line appeared out of the gunk.
Got to try it again
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I don't know what your talking about officer.
I swear it's the truth.
Thats my story and I'm sticking to it.
What witness?
I want my lawyer.
 
Temper Temper!


Cool, keep it up!
G2

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"The Road to Hell is Paved with Good Intentions!"
Take the time to read your Bible Now, don't be left behind...

G2 LeatherWorks
 
Temper lines can become a passion that does not end. The more you make, the more you want to make , Then you want to try controling them, creating ashi the way you want. It is a real blast and keeps the fire burning . glad you got a nice one.
Cheers, Wally Hayes.
you can buff the edge and leave the top the grey colour. and ,or , you can use flitz on the top also.
 
I found my temper line today as well, but not the right way! I managed to over-harden a blade in O-1 and snapped it an inch before the guard. The temper line was only 1/4" from the spine. Then when I went to test the edge of the blade I confirmed the over-hardening, it chipped at every point I tested yet the spine was still soft.

I'm glad your etch worked though
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Roger
 
Did you check the temp with a magnet before
quenching?
You just want to hit critical before you quench in oil with 0-1.
As soon as the magnet does not stick you quench.
If you keep heating you are going to get grain growth.
like Randall says slow and easy does it.
longer temp just before critical depending on quenching medium. So many variables eh.
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Cheers Wally
 
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