Title:
【発明の名称】ブランクガイド成型法
Document Type and Number:
Japanese Patent JP2003523285
Kind Code:
A
Abstract:
Workpiece controlled shaping of metal, preferably in the form of plates or bands of high tensile limit, preferably above 1000N per square mm, comprises heat treating the workpiece in planar form along notches or zones to reduce locally the tensile limit. The workpiece is then bent, folded or shaped along the heat-treated notches or zones, either directly or after cooling.
Inventors:
Carson, reif
Gross, Hans
Gross, Hans
Application Number:
JP2001561457A
Publication Date:
August 05, 2003
Filing Date:
February 22, 2001
Export Citation:
Assignee:
Avesta Polarit Actier Borak
International Classes:
B21D22/02; B21D5/00; B21D5/01; B21D11/20; (IPC1-7): B21D5/01; B21D22/02
Domestic Patent References:
| JPH05177366A | 1993-07-20 |
Attorney, Agent or Firm:
Naoki Fukumura