Method of manufacturing bottomed container, and press system
AssigneeFuji Springs Co., Inc.
InventorToshihiro Odagaki
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AssigneeFuji Springs Co., Inc.
InventorToshihiro Odagaki
Estimating the term…
To suppress warping at a bottom of a workpiece when manufacturing a bottomed box-section cylindrical container by molding a workpiece from a flat plate state to a box-section cylindrical shape state having a bottom by performing multiple press-drawing steps by using multiple molds each having a long-hole-shaped shaping hole. A first press-drawing step is performed using a first mold having a first shaping hole having a long hole shape. A second press-drawing step is performed using a second mold having a second shaping hole having a long hole shape, and is configured as a next press-drawing step after the first press-drawing step. The first shaping hole is formed with a larger dimension in a width direction perpendicular to a longitudinal direction than the second shaping hole, and is formed tapering inward in the width direction from both end sides to the center side in the longitudinal direction.
A method of manufacturing a bottomed container, for manufacturing a bottomed box-section cylindrical container by molding a workpiece from a flat plate state to a box-section cylindrical shape state having a bottom by performing multiple press-drawing steps by using multiple molds each having a long-hole-shaped shaping hole, the method comprising:
A press system for forming a bottomed box-section cylindrical container by molding a workpiece from a flat plate state to a box-section cylindrical shape state having a bottom by performing multiple press-drawing steps by using multiple molds each having a long-hole-shaped shaping hole, the press system comprising:
Dependencies are inferred from the claim text.