KenV
Member
I am puzzled --
Most of the tools I use are high speed steel and cobalt steel. I am learning to be a basic machinist and the metalurgy 101 says that you can "burn" carbon steel by over heating it and losing hardness (over temper). High speed and cobart steel sharpening instructions are not to get it red hot, and do not dip hot HSS into water as it tends to make it brittle.
I have done a fair bit with O-1 steel and drill rod as well as making springs with carbon steel -- and High Speed or Cobalt steel are different critters.
I have to really lean into the wheel to get hss red hot. A little blue does not appear to hurt the edges.
Puzzled Ken in Juneau Old Foopus Apprentice
Most of the tools I use are high speed steel and cobalt steel. I am learning to be a basic machinist and the metalurgy 101 says that you can "burn" carbon steel by over heating it and losing hardness (over temper). High speed and cobart steel sharpening instructions are not to get it red hot, and do not dip hot HSS into water as it tends to make it brittle.
I have done a fair bit with O-1 steel and drill rod as well as making springs with carbon steel -- and High Speed or Cobalt steel are different critters.
I have to really lean into the wheel to get hss red hot. A little blue does not appear to hurt the edges.
Puzzled Ken in Juneau Old Foopus Apprentice