Using an Irwin Marples 80 tooth blade, cutting 1/8" L-shaped aluminum
angle bar. After completing one of the cuts, the small piece got caught
on the blade. The blade force bent the 1/8 inch thick aluminum. I
inspected the 80 tooth blade tooth by tooth and found nothing wrong with
it except what looked like a scuff mark on the side near two of the
teeth.

Do blades ever get bent out of shape by such a collision?

I just figured that next time I will try using packaging tape to
hopefully prevent the small cut off piece of aluminum from falling into
the blade. Might be better to have some sort of elastic tape to provide
a little tension with that.