Maintenance & Technical > KX500 Aluminum Frame Conversion (AFC)

my poor bike

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LundMx:
That would look cleaner than gusseting, however hacking it back apart to do that doesnt sound like much fun   :-(

cmotodad:
I was thinking of anyone doing a new conversion

motopunk:
thats what i say again again and again... welding aluminium frames is not as half as easy as welding steel frames.. 

the right heat treating is important in all cases of welding to get the perfekt stability . in case of no or wrong heat treating it will break like glass right beside the welds , where the molecular chains still not arranged properly.
 the same can also happen with steel when it was not welded properly, resulting in too many stress material left and right of the weld.
with heat treating before and after the welding you will allow the molecular chains to arrange properly, to make flexible material. cause when the molecules sitting too close together, the material is too stiff at this point and breaks sometime. that's the whole secret.

brooksie:
I think gusseting will just move the problem. You'll still have huge heat cycles concentrated in the weld areas, except now you'll have more welds/more heat cycles. It seems this type of failure won't show up until it fails, which is typical of cycle fatigue.

LundMx:
well than what is the right answer to this? since no one seems to know the temperature and duration of the heat treating and guesseting will only move the problem then what? sh*t can the square tubing and start over with radius tubing? or even a delta box tubing~ if obtainable :?

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