Best filler for air & precip. hardening steels
Posted: Sat Jul 30, 2016 2:12 pm
Hi,
in another post I brought up using p20 filler to repair molds of the same alloy...I don't think that's what I should do though.
I make molds for low abrasion plastics so hard isn't necessary. If I use p20 wire and do a good job repairing damage to a mold, the next thing I'll do is remove the hair from my head. In handfulls. I did Jody's light up test on some p20 and it gets to like 65C Rockwell. I only do rotary mold build (and repair). Even with carbide running at 40,000 rpm I won't get where I'm trying to get.
So the question I should ask is what filler should I use that's compatible and doesn't harden up too much? I can cut up to maybe 52C but forget about 60C and up. I only have a muffle furnace and no time so annealing and rehardening is not an option.
Thanks for putting up with this newbie!
in another post I brought up using p20 filler to repair molds of the same alloy...I don't think that's what I should do though.
I make molds for low abrasion plastics so hard isn't necessary. If I use p20 wire and do a good job repairing damage to a mold, the next thing I'll do is remove the hair from my head. In handfulls. I did Jody's light up test on some p20 and it gets to like 65C Rockwell. I only do rotary mold build (and repair). Even with carbide running at 40,000 rpm I won't get where I'm trying to get.
So the question I should ask is what filler should I use that's compatible and doesn't harden up too much? I can cut up to maybe 52C but forget about 60C and up. I only have a muffle furnace and no time so annealing and rehardening is not an option.
Thanks for putting up with this newbie!
