Metal sheet pressing method
OwnerMinoru Ishihara, Toshio Kayaoinventors
Life of this patent
Estimating the term…
Abstract
This invention provides a metal sheet pressing method of precision-pressing a metal sheet, wherein after a metal sheet (1) is partially drawn so as to form a perforated portion (1a), the perforated portion (1a) is heated by baking and after it is heated by baking, the perforated portion (1a) is pressed with press dies into an uneven-surface shape.
Claims2
A metal sheet pressing method of precision-pressing a metal sheet, wherein after a metal sheet is partially drawn so as to form a perforated portion, the perforated portion is heated by baking and after it is heated by baking, the perforated portion is pressed with press dies into an uneven-surface shape.
Dependencies are inferred from the claim text.