Author Topic: Heat Treating services?  (Read 4697 times)

Camo5

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Heat Treating services?
« on: May 25, 2016, 07:35:22 am »
Anyone know of somebody who can do heat treating services? I figure i should make spinooks shell up to R42-45 just to make sure bots like vile ant cant pick away little chunks over time. Its shell is made from 4340 steel

FingerTech

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Re: Heat Treating services?
« Reply #1 on: May 28, 2016, 04:44:16 pm »
Whyachi can do it if you're willing to pay way too much.  There are a couple guys on this forum who have done it themselves too.  I want to say Alex Horne (ZoopDogg); but I'm not sure on that.
Kurtis Wanner
FingerTech Robotics

Camo5

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Re: Heat Treating services?
« Reply #2 on: June 06, 2016, 03:12:34 pm »
Or another question if I end up doing it myself: what temperature and quench type should i use for 4340 steel at R45 hardness? Something around 800F and quenched in oil?

rcjunky

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Re: Heat Treating services?
« Reply #3 on: June 15, 2016, 04:17:52 am »
you'll want to raise its temperature in an over to 1550*f and hold it there for probably 10mins (assuming said parts are under 1" thick which I figure is safe in bots) then quenched in oil. When its cooled in the oil until its warm put in in an oven and raise it to 800*f and hold it there for and hour. Remove and let it cool in air. Once its cool I'd typically do a second draw (oven to 8008f and cool again) to be safe but don't know if its necessary to do 2 draws with 4340. I'd also typically check hardness each time its cooled if you have access to the required equipment.
Andrew Burghgraef
Canadian Carnage Robotics

Camo5

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Re: Heat Treating services?
« Reply #4 on: June 16, 2016, 07:10:17 pm »
Thanks for the info.

A local company Med-Tek can do it for $45 though, and they have all sorts of oils and salts etc for stuff

rcjunky

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Re: Heat Treating services?
« Reply #5 on: June 25, 2016, 01:14:04 am »
yup, getting someone with experience to do it isn't a bad idea. Heat treating it wrong could just lead to failure (like if you harden it one day and draw it back the next, it'll probably crack on first impact)
Andrew Burghgraef
Canadian Carnage Robotics