Title:
PRESS FORMING METHOD FOR METAL SHEET
Document Type and Number:
Japanese Patent JP2004050230
Kind Code:
A
Abstract:
To provide a forming method which forms irregularities by press forming only a fragile area in a precision press forming of a metal sheet.
A metal sheet 1 such as a steel sheet or a stainless steel sheet is blanked and in a part of which numerous holes in a reticulate shape are formed. The area with numerous holes is heated by a heating device such as a burner and then press formed into irregularities with desired press dies 3a and 3b.
More Like This:
Inventors:
ISHIHARA MINORU
KAYAO TOSHIO
KAYAO TOSHIO
Application Number:
JP2002211158A
Publication Date:
February 19, 2004
Filing Date:
July 19, 2002
Export Citation:
Assignee:
UCHIYAMA MFG
International Classes:
B21D22/26; B21D24/00; B21D31/02; B21D37/16; (IPC1-7): B21D22/26; B21D24/00; B21D31/02