I remember on the WWS where Roy describe "an old technique"
for straightening a kinked blade in which you go out to a lake and
repeatedly smack the saw broadside-down on the water until
it un-kinked.

N
[Although I must admit that I always suspected  that --just maybe-- this
was the task assigned to the new apprentice the first time s/he kinked a
blade.  Then when they got back to the shop, and had a chance
to dry out a bit, they could be sent to the hardware store for a can
of tartan paint, or a dozen AC batteries.]