Joe Cabaup
Member
Hello all,
I have been having a strange problem lately, I have been having annealed blade snap while bending
Normally when forge a blade using 1084FG, I normalize it, then heat it back up to red and put it in a trash can of vermiculite overnight.
I messed up a grind bad, to the point that I was going to add it to the ever burgeoning sack of failures when I decided to bend it and throw it away. It snapped at about 70 degrees!
Now I thought since it was annealed it shouldn't snap at all. I changed my annealing process to quenching in Parks 50, then temping it to a dull red and then back into the vermiculite.
Another bad grind so into the vise it went.
Snapped at almost 90 degrees!
A little better but still, what gives?
My set up:
Digitally monitored gas forge. Anneal soaking between 1500 and 1700 degrees for 5 minutes. I do check for decalescence while soaking and start the timing then.
I have been having a strange problem lately, I have been having annealed blade snap while bending
Normally when forge a blade using 1084FG, I normalize it, then heat it back up to red and put it in a trash can of vermiculite overnight.
I messed up a grind bad, to the point that I was going to add it to the ever burgeoning sack of failures when I decided to bend it and throw it away. It snapped at about 70 degrees!
Now I thought since it was annealed it shouldn't snap at all. I changed my annealing process to quenching in Parks 50, then temping it to a dull red and then back into the vermiculite.
Another bad grind so into the vise it went.
Snapped at almost 90 degrees!
A little better but still, what gives?
My set up:
Digitally monitored gas forge. Anneal soaking between 1500 and 1700 degrees for 5 minutes. I do check for decalescence while soaking and start the timing then.