I had a knife take an ill turn on the grinder but I decided to push through it for testing. I used reducing heats with a few minutes of soak and then air cool at 1600 and 1550. Lastly it soaked 10 minutes at 1525 followed by quench in a medium speed oil. I tempered it for two 1 hour cycles of 375.
I have a tendency to leave my blades too thick prior to convexing. This is a large chute knife so I ground to 25 thousandths before convexing. I could get it shaving sharp and it withstood chopping on osage and a brass rod test without chip or roll.
I could not, however, get it to cut rope well. I laid 1" sissal rope on the bench and tried slicing but the blade slid across it more than cut it.
How does the grain look to you and should I have treated and ground it differently?
Hard to tell from pictures but looks too thick on the lower part, too much roll, for rope. 2 cents worth only.
M
Mike Williams
Master Smith
Gabe the grain looks good, but I agree with Mike. Looks like it was not convexed enough. By that I mean that the convex did not go up high enough. If that makes sense.
Brion
Brion Tomberlin
Anvil Top Custom Knives
ABS Mastersmith
