clamping fixture for forging a clevis

[Frank S]

I needed to make some special clevises out of 1/8x2" flat bar to do this I needed them to be formed completely square with 1" between the legs of the clevis.
My solution was to use 2 pipe holding clamps from a piece of machinery, these were 1inch wide with 2 mounting holes approximately 2 3/8" on centers This worked out just wide enough to allow the flat bar to be placed between the bolts to be used as clamping bolts
After clamping and checking for being square I heated the flat bar at the clamp and bent it 90°, hammering the bends until the flat bar was tight against the sides of the clamp