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US 2026/0145220 A1Published application
Press forming apparatus and method for producing press-formed article
AssigneeNippon Steel Corporation
InventorsShin TOYOKAWA, Ko SATAKE
Life of this patent
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Abstract
A press forming apparatus 300 includes a die 330, a punch 310, and a die pad 320. The die pad 320 is disposed inside the die 330. The die pad 320 is disposed opposed to the punch 310. At a bottom dead center PL, surfaces of the die pad 320 and the punch 310 that extend along a pressing direction P (first and second flange forming portions 313A, 313B, 324A, and 324B) have holes 400A and 400B. At the bottom dead center PL, the surfaces face the die 330. Edge portions 400aA and 400aB of the holes 400A and 400B are formed by the die pad 320 and the punch 310.
Claims2
A press forming apparatus comprising:
- a die, a punch, and a die pad, wherein
- the die pad is disposed inside the die,
- the die pad is disposed opposed to the punch,
- at a bottom dead center, surfaces of the die pad and the punch have a hole, the surfaces extending in a pressing direction,
- at the bottom dead center, the surfaces face the die, and
- an edge portion of the hole is formed by the die pad and the punch.
3 more elements
Dependencies are inferred from the claim text.