Metal plate and method of shaping the same
AssigneeShinko Electric Industries Co., Ltd.
InventorsSumio Uehara, Yoshihisa Nagamine, Toshifumi Iizuka
Life of this patent
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Abstract
There are provided a step of forming a structure in which a first concave portion is formed in a predetermined portion on one surface of a metal plate and also a convex portion that protrudes from other surface of the metal plate is formed by formation of the first concave portion and a second concave portion is formed in a predetermined portion on an outside of a peripheral portion of the convex portion, by shaping the metal plate by means of stamping using a die, and a step of cutting the convex portion formed on the other surface of the metal plate.
Claims8
A metal plate shaping method comprising the steps of:
- forming a structure in which a first concave portion is formed in a predetermined portion on one surface of a metal plate, and also a convex portion that protrudes from other surface of the metal plate is formed by formation of the first concave portion, and a second concave portion is formed in a predetermined portion on an outside of a peripheral portion of the convex portion on the other surface of the metal plate, by shaping the metal plate by means of stamping using a die;
- and
- cutting the convex portion formed on the other surface of the metal plate.
Dependencies are inferred from the claim text.