Tooling for sheet metal forming apparatus

Details Tooling for sheet metal forming apparatus Tooling for sheet metal forming apparatus

B - Operations, Transporting

21

D

113/70

B21D 9/08 (2006.01)

Patent

CA 1037786

ABSTRACT The female die in a sheet metal brake is fitted with TEFLON inserts at critical points in the die, which inserts per- mit the sheet metal to move relative to these inserts without exhibiting the usual tendency to mar the associated surface of the sheet metal. The inserts are preferably circular in cross section, having active segments which engage the metal workpiece during the forming process. The female die defines semi-circu- lar cavities for rotatably receiving these cylindrical inserts or rods, and this configuration assures that the wear of the rods being adapted to rotate incrementally during each forming operation of the associated male member so as to present an ad- jacent segment of the periphery of the TEFLON rod to the next succeeding workpiece.

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