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> Cryogenic Technical Articles
lmcchesney
post Feb 9 2004, 09:31 AM
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I have reviewed all the messages from the foum regarding cryogenic processing of engine parts. However, it lacks good/significant documentation regarding the different processes done.
Does anyone know the source of technical articles regarding this process.
There must be some University site with this information.
Yes, I have searched the MIT site without success.
Anyone have the information?
Thanks,
L. McChesney
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ArtechnikA
post Feb 9 2004, 01:17 PM
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rich herzog
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it's pretty well thought of in the rifle barrel industry.

think about this: why would we believe the effects of heat-treating stop at room temperature just because that's a comfortable environment for humans ? the theory, as i've heard it explained, is that the heat-treat chemical process in the steel continues right down approaching absolute zero.

i have seen before/after tests on gun barrel accuracy in which residual stresses produced 'stringing' (asymetrical thermal expansion causing barrel curvature and a 'string' (line) of hits) that wa eliminated following cryo treatment.

i know some people who claim wonderful effects in aluminum alloy, but as that does not have the austenite/martensite bi-phase thing, i'm skeptical there. but i haven't seen any 'before and after' product tests either, so i donno.

i know life extension is claimed for brake rotors, but since it seems to double life at double the cost, i'd think it beneficial mostly to endurance racers who could potentially avoid a mid-race rotor swap and gain a competitive advantage.

for other parts - connecting rods ? crankshafts ? camshafts ? i s'pose it couldn't hoit, especially if there were a friction reduction. my water-VW camshafts have shown no visible lobe wear after 350,000 mi so i hope it has a more compelling reason than just wear reduction. OTOH - those cams may have had an expensive surface treatment that costs more than cryo would. i'm no metallurgist, i just know what i read ...
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lmcchesney   Cryogenic Technical Articles   Feb 9 2004, 09:31 AM
kdfoust   It wouldn't surprise me if the legitimately de...   Feb 9 2004, 10:22 AM
kdfoust   Wear "Chilled Out" of Stamping Dies & Punches Cr...   Feb 9 2004, 11:08 AM
Mark Henry   My first reaction to cryo was "snake oil". But hea...   Feb 9 2004, 12:17 PM
Jake Raby   One day I was in my ocal Barber shop... My regular...   Feb 9 2004, 01:10 PM
ArtechnikA   it's pretty well thought of in the rifle barre...   Feb 9 2004, 01:17 PM
airsix   Cryo treatment is common as part of the heat-treat...   Feb 9 2004, 01:27 PM
airsix   Rich, Your comments about gun barrel stress are in...   Feb 9 2004, 01:38 PM
kdfoust   To me the discussion is not around "the whether" o...   Feb 9 2004, 01:41 PM
lmcchesney   The concept is intriging but the lack of data is w...   Feb 9 2004, 01:51 PM
Jake Raby   I talked to my cryo guy- he'll be here later..   Feb 9 2004, 06:32 PM
Targa   I plan on incorperating this process into my engin...   Feb 9 2004, 07:06 PM
Dave_Darling   So far, the evidence that I have seen is all anecd...   Feb 9 2004, 07:24 PM
TimT  
QUOTE
  Feb 9 2004, 07:44 PM
Mark Henry   ...   Feb 10 2004, 09:48 AM
Dave_Darling  
  Feb 10 2004, 11:38 AM
airsix   Dave, You might like reading some of the info Cruc...   Feb 10 2004, 01:01 PM
Jake Raby   I am INDEPENDANT! Want to see how?? When my p...   Feb 10 2004, 01:55 PM
ArtechnikA     Feb 10 2004, 03:33 PM
Jake Raby   FYI, Right now I'm making a special fixture th...   Feb 10 2004, 04:12 PM
tat2dphreak     Feb 10 2004, 04:17 PM
Targa   Try the Excelsior nano-web coated strings. they ar...   Feb 10 2004, 04:54 PM
Dave_Darling  
QUOTE
  Feb 11 2004, 03:52 PM
ArtechnikA  
QUOTE
  Feb 11 2004, 09:47 PM
Jake Raby   TI valves won't last 2000 miles in a street ap...   Feb 11 2004, 09:50 PM
Brett W   The 2004 GSXR 600 from Suzuki comes with titanium ...   Feb 12 2004, 04:31 PM


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