Molding method for plate-shaped workpiece, and molded article
AssigneeMitsubishi Heavy Industries, Ltd.
InventorsTakahiro Ota, Daisuke Ogura, Atsushi Sugai, Ken Ishii
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Abstract
Provided is a molding method for a plate-shaped workpiece including forming a concave portion (11) at one surface (1a) of a plate-shaped workpiece (1), and bending the plate-shaped workpiece (1) having the concave portion (11) such that the one surface (1a) becomes a concave surface and a rear surface (1b) thereof becomes a convex surface.
Claims19
A molding method for a plate-shaped workpiece comprising a first surface and a second surface, the first surface formed of a flat surface, and a second surface positioned opposite to the first surface on the plate-shaped workpiece and formed of a flat surface, the molding method comprising:
- forming a concave portion at the first surface of the plate-shaped workpiece, wherein the plate-shaped workpiece is one piece;
- forming a first stepped portion at a corner of the first surface side of the concave portion, wherein the first stepped portion has a stepped shape;
- inserting a shim formed with a second stepped portion and formed of a material having a lower Young's modulus than that of the plate-shaped workpiece into the concave portion so that at least a portion of the first stepped portion is engaged with the second stepped portion;
- and
- pressing the plate-shaped workpiece against a mold member to perform bending processing, wherein a shape of the first surface becomes a concave surface shape.
Dependencies are inferred from the claim text.