Invention Grant
- Patent Title: Progressive pressing method, progressive pressing device, manufacturing method for fuel cell separators and manufacturing apparatus for fuel cell separators
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Application No.: US17213248Application Date: 2021-03-26
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Publication No.: US11642714B2Publication Date: 2023-05-09
- Inventor: Yuichi Hori , Tomotsugu Takahashi , Kei Matsumoto , Seitaro Nakamura
- Applicant: HONDA MOTOR CO., LTD.
- Applicant Address: JP Tokyo
- Assignee: HONDA MOTOR CO., LTD.
- Current Assignee: HONDA MOTOR CO., LTD.
- Current Assignee Address: JP Tokyo
- Agency: CKC & Partners Co., LLC
- Priority: JP 2020063535 2020.03.31
- Main IPC: B21D22/02
- IPC: B21D22/02 ; H01M8/0254 ; H01M8/0206

Abstract:
A progressive pressing method includes: a first bead molding step of molding a first bead having a length of a second predetermined distance extending in a longitudinal direction of the elongated metal plate, in a side part of a region which becomes a first product part of the elongated metal plate; a first conveying step of conveying the elongated metal plate in the longitudinal direction by a feed amount which is a first predetermined distance; and a second bead molding step of molding a second bead having a length of the second predetermined distance extending in the longitudinal direction of the elongated metal plate, so as to link with the first bead molded in the first bead molding step, in a side part of a region which becomes a second product part of the elongated metal plate, in which the second predetermined distance is longer than the first predetermined distance.
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