"Lloyd E. Sponenburgh" lloydspinsidemindspring.com wrote in message . 3.70...

But after long enough, you figure a blade must be fatigued
from all the bending, that being just as much or more destructive than
the wear from actual cutting. My old blades break (usually) long before
they dull.


If you look closely, you'll probably see numerous stress cracks.

Re-welding is futile, it'll just break again someplace else.

FWIW, I'm currently using DoAll blades, and the saw sees aluminum only, for maybe 3 hours a week...

--blades usually last at least a year unless there's a mishap.