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US 2026/0295654 A1Published application
Progressive area forging method
AssigneeDoosan Enerbility Co., Ltd.
InventorsDo Jin Cha, Jong Ho Shin
Life of this patent
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Abstract
Disclosed is a progressive area forging method including: a first forging step of press-forming a central region of one surface of a preform placed on a concave bed using a first die, such that a first protrusion is formed on a central region of the other surface of the preform; and a second forging step of press-forming a peripheral region of the one surface of the press-formed preform using a second die, such that the one surface of the preform is formed to be flat.
Claims20
A progressive area forging method comprising:
- a first forging step of press-forming a central region of one surface of a preform placed on a concave bed using a first die, such that a first protrusion is formed on a central region of an opposite surface of the preform;
- and
- a second forging step of press-forming a peripheral region of the one surface of the press-formed preform using a second die, such that the one surface of the preform is formed to be flat.
Dependencies are inferred from the claim text.