Aaaaaarrrrgggghhhhhh !!!

M

miden

Joined
Sep 9, 2005
Messages
835
I am sure this has happened to some of you.
I took 2 blades to a guy (ATS 34)that is supposedly a heat treatment boffin and when I went to pick 'em up, he was a bit red faced. I will not mention his name, he has done some great work before and I guess s**t happens even to the best of us.
Apparently I ground the edges too thin. Well, I did want a thin edge but he said it would not be a problem.
A lot of careful grinding and hand rubbing. I wanted these things to cut like a banshee and they warped like a , well, take a look. He said I can maybe grind them into something else but I doubt that it is worth it.
I was mad as hell but then I saw his embarrasment so I guess I will just have to mark it down to part of the painful learnig curve. I will hang them on the wall behind my grinder as a grim reminder of what happens when you want to get too clever.... :mad:


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oh hell....finish them up for fum :) Might make a wicked looking knife :thumbup:

Dont worry - we all are trying to figure this out too :)
 
The same thing happened to me with a camp knife I was working on. I was so proud of the hollow grind I had put in the blade and the hand rubbed finish before my heat treat. Not only did I have warpage, the edge fractured and chipped away. I may salvage the blade or keep it in my growing "wall of shame."
 
" I can just hear them say, THAT is a miden"

I was waiting for you Sweany :D

Still, it WAS a nice hollow grind.....

Mike
 
miden said:
I am sure this has happened to some of you.
I took 2 blades to a guy (ATS 34)that is supposedly a heat treatment boffin and when I went to pick 'em up, he was a bit red faced. I will not mention his name, he has done some great work before and I guess s**t happens even to the best of us.
Apparently I ground the edges too thin. Well, I did want a thin edge but he said it would not be a problem.
A lot of careful grinding and hand rubbing. I wanted these things to cut like a banshee and they warped like a , well, take a look. He said I can maybe grind them into something else but I doubt that it is worth it.
I was mad as hell but then I saw his embarrasment so I guess I will just have to mark it down to part of the painful learnig curve. I will hang them on the wall behind my grinder as a grim reminder of what happens when you want to get too clever.... :mad:


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Hey T.H. The tendency for new grinders is to thin the blade out a little to much before sending it off to the heat treat guy. Leave plenty of steel along the edge and at the tip of the knife. There is a lot less risk involved and once you try it , you will find you like grinding knives in the hardened state. I don't mean just cleaning up the scale but actually shaping the tip and edge.
I make quite a few large knives, 10 or 12 inch blades, every year and have found thru the same process you are experiencing that leaving the blade with plenty of steel before h.t. is a good habit to develope. Jams, Fred
 
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