Maintenance & Technical > KX500 Aluminum Frame Conversion (AFC)
'09 500AF build
jBernard:
--- Quote from: SS109 on May 27, 2015, 06:44:59 AM ---Bummer. Well, it's probably for the best anyway.
--- Quote from: jBernard on May 22, 2015, 06:44:57 PM ---+ i didnt want to pay 350$ for heat treating either.
--- End quote ---
$350... ouch! Who was that through?
--- End quote ---
the guys that do Christini's frames up in PA. sounded super high, never shopped around after that quote.
dont know how 'true' it is but the guy said that they have a specific way the hang the frames to prevent warping/distorting. *maybe* another heat treater wouldnt take as much care with that aspect and thus cheaper? dont know.
crooscroos:
I had a friend of mine who does powder coating heat treat my frame. He only charged $40 as the heat treating process is fairly simple!
jBernard:
--- Quote from: crooscroos on May 27, 2015, 08:42:10 AM ---I had a friend of mine who does powder coating heat treat my frame. He only charged $40 as the heat treating process is fairly simple!
--- End quote ---
if he used his powdercoat oven, thats not really heat treating, more like aging.
solution heat treatment is pretty involved process. at high temps at 1000* F
"
Solution treating is typically performed in the 450 to 575°C (842 to 1067°F) range in air, followed by rapid quenching into cold water, hot water, boiling water (-T61 temper), water-polymer (glycol) solution, water spray or forced air. Natural aging to the T4 temper will occur at ambient temperature for 2XXX, 6XXX, 2XX and 3XX alloys, with most reaching a stable temper after 96 hours. Artificial aging in the 93 to 245°C (199 to 473°F) range is utilised to meet the T6 and T7X tempers.
Immediately after quenching from solution treating, all alloys are relatively soft and can be moderately formed or straightened if performed within a couple of hours. These alloys will naturally age harden at ambient temperature, with their hardness gradually increasing with time following quenching. This can be suppressed by refrigeration below about 0°C (32°F) if it is desired to form or straighten the material more than a couple of hours after quench. Cooling to below about minus 23°C (minus 10°F) or colder is required to retain the As-Quenched (AQ) temper for prolonged storage times beyond a few days.
For maximum formability prior to solution treating and aging, these alloys must be fully annealed to produce a stable dead soft O temper by heating in the 400 to 425°C (752 to 797°F) range, then slow cooling (28°C or 50°F per hour or slower) to below 235°C (455°F), formed, then solution is treated and aged.
"
SS109:
--- Quote from: jBernard on May 27, 2015, 07:03:47 AM ---the guys that do Christini's frames up in PA. sounded super high, never shopped around after that quote.
dont know how 'true' it is but the guy said that they have a specific way the hang the frames to prevent warping/distorting. *maybe* another heat treater wouldnt take as much care with that aspect and thus cheaper? dont know.
--- End quote ---
Thanks for the info. BTW, with the pieces you are having made, how are you avoiding the heat treating? If you weld the pieces in then wouldn't you lose the temper of the aluminum in proximity of the welds so it would still need to be heat treated?
crooscroos:
jBernard, thanks for all of the useful information! Are there any benefits to simply aging the aluminum?
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