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F

Frank Eaton

Joined
Sep 10, 2004
Messages
362
I am getting one of those orange peel problems with a piece of O1, it began to show when I started to buff. It is showing on both side in generally the same spots. I don't believe that I overheated during buffing though.

The other problem is I am using a scotch bright wheel to finish satin, an I was belt sharpening and dipping in water to cool, within 5 min (while sharpening) those orange peeled areas began to rust. I have never satin a blade, I always polish. Is O1 good to satin, or prone to rusting that quick? Have I done something else wrong????
 
How did you heat treat it?
I'm not sure exactly whats going on here, but I have had finish problems from overheating before the quench a few times. O1 doesn't have to get all that hot (in comparison to other steels) and from my experience you can get grain growth very easily if you over heat it. For me it resulted in a spotty finish that didn't show up until I started polishing the blade. Sort of a blistered look I guess.
I don't really know if thats the case or not, but it sounds like a possibility.
You should be able to put a satin finish on O1 just fine, I've never taken it any farther than that and haven't had any problems. Not sure whats causing the rust while finishing. I've had water spots before but they usually don't show up that fast and its more of a really mild discoloration than rust.
 
Mike,

I was intending on polishing, ended up with satin trying to go over the orange peel problems. With the rust, it was just a discoloration, and easily worked out, I was just having doubts in selling the blade if with a satin finish the thing starts to rust that quick. A polished finish seems to be much more resistant to rust for longer. With the heat treat, I went just past non-magnetic and quenched. Thanks for replys, I may get a pic on later showing it.
 
I didn't answer part of your question. YES, O1 will flash rust while you look at it if you're grinding(getting it warm), and dipping. I mean literally, you can watch it happen. The baking soda will help though.


The workrest on my grinder used to do the same thing, badly, and that's here in AZ with a dry climate. I tried the baking soda in the dip water and it stopped the problem.

You have to keep O1 oiled, or waxed at all times, with the exception of just before heat treat. Try stainless some time, leave the dark side.:eek: ;)
 
Mike Hull said:
Try stainless some time, leave the dark side.:eek: ;)
Click to expand...

Dang, Mike! I'm surpised you mustered up the courage to say that in light of all the carbon-steel fanatics we got here!
 
Not everyone here is totally wedded to plain carbon steel! :p

Did I miss a sign on the door on the way in????? :confused: :D
 
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