Maintenance & Technical > KX500 Aluminum Frame Conversion (AFC)
my poor bike
KevinTwoStk:
I e-mailed AJ at Service Honda a while ago about heat treating. He said that yes, they do heat treat their frames after welding. Also, you can have a metallurgy lab test the frame before you weld it to see what alloys the frame is made from. Knowing the alloys will help you select the proper welding rod and proper type of tubing for re-constructing the cradle. It (knowing the alloys) should also dictate how the heat treating should be done.
I know that many aluminum bicycle frames made overseas are built using alloy 7005. It wouldn't surprise me if Japanese motorcycle frames were also made with 7005.
No, I've never built an aluminum frame conversion, but I thought I'd pass along the info that I have. A broken-in-half frame is a frightful sight indeed!
LundMx:
DSPMOTO~ do you know if you used .063 wall or .125 wall? i think that would make a huge difference http://www.speedymetals.com/s-194-square-tube.aspx
tkeen511:
Lund-in response to your heat treating question, I would refer to a book that the aws(American welding society) makes. It's pretty much the bible and tells you what heat, how long, and any procedures or precautions you need to do or take for every type of metal. My dad actually has 2, from 1997, next time I stop by his house I'll try to remember to look and I'll let you know. Sorry for bumping this post
kkvslayer:
I don't know jack about metals but from my years online within the aluminum frame conversion community 6061 seems to be the way to go,I know that is what the mounts,head stay & swing arm spacers were made from for my old cr500 conversion and that's what most of the prefab downtubes & conversion parts are made from
tkeen511:
Yes, I agree that 6061 is the best choice. Air craft grade baby
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