January 12, 20206 yr Working with what I had and not trying to make anything useful, I had a go at some mystery metal from a 7 1/4" carbide tip circular saw blade I had in the dead pile. Being that it was carbide and Task is a brand that flirts at the end of unusable junk, I wasn't expecting much. Process as follows Heat to non-magnetic, quench, file test. Water quench - hard, file skates Re-heat and air cool Oil quench - hard, file skates, some bite in areas that probably decarbed. Temper in toaster oven @ 450f for 1 hour and allow to cool. Stick in vice and bend, has some flex, makes clean break without taking a bend. Re-temper by colour with a torch, proceeded through blue and purple to deep copper/bronze (under flourescents) Put in vice and bend, bends without breaking repeatedly until metal fatigues and breaks. 1st temper on right, 2nd temper on left. Any opinions? Technique? Material usability? Uses?
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.