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Old 03-04-2021, 10:54 AM
mark g mark g is offline
Metal Shaper of the Month, April 2011, December 2012, May 2016
 
Join Date: Nov 2010
Location: Southern VT
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Quote:
Originally Posted by RCinHB View Post
When bending a long piece, insert a 6 inch (experiment w/ length and thickness) wide shim between the underside of the workpiece and the bending leaf to limit the bending of the workpiece to the width of the shim. Incrementally slide the shim back and forth along the length of the workpiece making a local bend at each location using the leaf. The shim allows the full length of the workpiece to be clamped, but provides a small bend length so as not to excessively deflect the structure. Taper or radius the sides of the shim so they do not mark the workpiece. It is a process somewhat like hammer forming but you are locally bending with the brake instead of a hammer.
Interesting concept.
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