Patent Number: 6,308,545

Title: Method and apparatus for forming blanks

Abstract: For shaping small radii in edge and corner regions of preformed workpieces or blanks, the invention provides for a postforming of exclusively said edge and corner regions by high liquid pressure. For performing the method an apparatus has a die part (forming insert) with expansion spaces constructed in its edge and corner regions.

Inventors: Burgel; Lonka (Schwarzenberg, DE), Schieck; Frank (Lauter, DE)

Assignee: Kuka Werkzeugbau Schwarzenberg GmbH

International Classification: B21D 22/12 (20060101); B21D 22/00 (20060101); B21D 026/02 ()

Expiration Date: 10/30/2018