PetrifiedWood
Well-Known Member
Tried a 3/16" piece of O1 steel yesterday.
I cut out the profile, and ground the bevel, then put it in the kiln cold. Ramped up to 1475 and held for 10 minutes, quenched in 130 degree mineral oil. After tempering twice at 425 degrees, I brought it back out to clean it up and notice a slight curve along it's length.
So, I stuck the blade in the vise with some round bits of scrap metal to apply pressure where I needed it, and had to really crank it over to bend it severely before it would stay straight.
I was really surprised at just how tough the steel had become, and I think my HT worked for this steel.
So my questions are:
Is it ok to straighten blades like this after tempering?
And, what steps can I take to prevent warping in the future?
I cut out the profile, and ground the bevel, then put it in the kiln cold. Ramped up to 1475 and held for 10 minutes, quenched in 130 degree mineral oil. After tempering twice at 425 degrees, I brought it back out to clean it up and notice a slight curve along it's length.
So, I stuck the blade in the vise with some round bits of scrap metal to apply pressure where I needed it, and had to really crank it over to bend it severely before it would stay straight.
I was really surprised at just how tough the steel had become, and I think my HT worked for this steel.
So my questions are:
Is it ok to straighten blades like this after tempering?
And, what steps can I take to prevent warping in the future?