Roy, I do a lot of emergency machining and repair work, and have found that
if air-hardening A2 tool steel is used, an even heat to glowing red from a
torch, air cooling, followed by a tempering with the torch works just fine.
Scale is buffed off, beadblasted, or left as is. I have a foot-powered
turntable to apply the heat as evenly as possible by spinning the part
slowly while heating. I probably do a hundred or more small parts a year
like this with great success.

RJ


--
"You're just jealous because the voices are talking to me, instead of you."


"Roy" wrote in message
...
Anyone have any plans or ideas on making a home made heat treat oven
of say 10 x 12 x 15 inches or so in size? Electrical operated and
running off 220 preferably, definately no propane powered furnace is
wanted.

I looked in the drop box fro such a project but have not seen any,.
but then again I may have missed one that is in there. Anyhow anyone
with any info on making a heat treat oven thats out there, I certainly
would appreciate some insight.

I have 2.5 x 4.5 x 9 inch insulated fire brick that I plan to use for
th liner / insulation and fit these inside a bent sheet steel box
hopefully. Not looking to make a huyge oven just something to heat
treat a few small items from time to time.

Any info appreciated.
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