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Patent Searching and Data


Title:
MANUFACTURE OF PATTERNED METAL SHEET BY USING FLEXIBLE ELASTIC BODY
Document Type and Number:
Japanese Patent JPH0739963
Kind Code:
A
Abstract:

PURPOSE: To manufacture a metal sheet satisfactory in surface condition and having an embossed pattern with a simple process.

CONSTITUTION: A metal sheet 30 is held between a molding plate 10, of which plural holes 11 are formed in a specific pattern, and a soft elastic body 20; and a bulging part 31 corresponding to the pattern of the hole part is formed on the metal sheet 30 by a press forming. Since the bulging part 31 is plastically deformed while coming into contact with the expanded part 21, the metal sheet with the embossed pattern is obtained without wrinkles, scars, etc., caused by a pulling force.


Inventors:
MIURA NORIMASA
ISHIKAWA HANJI
NAKAKO TAKEFUMI
Application Number:
JP19229693A
Publication Date:
February 10, 1995
Filing Date:
August 03, 1993
Export Citation:
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Assignee:
NISSHIN STEEL CO LTD
International Classes:
B21D22/10; B21D31/00; B21D37/01; (IPC1-7): B21D31/00; B21D22/10; B21D37/01
Attorney, Agent or Firm:
Wataru Ogura