wrote in message
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Several years back someone wrote up a technique to bend angle iron by cuttinging a series of slots
rather than a vee notch so you ended up with a nice round corner.

Anybody still have this info still?

Shouldn't be much different then bending wood.
https://www.google.com/search?num=50....0.oFtYjH3ETHA
Or google "kerf bending wood"
Art