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Method For Manufacturing Press Molded Article

Abstract: The present invention provides a method for manufacturing a press-molded article, the method comprising inserting a blank (200) between a die (20) and a blank holder (30) and pressing the blank (200) in a press direction (P) by means of a punch (10). When viewed from the press direction (P), an edge (24) of the die (20) includes a curved part (241) and an edge (201) of the blank (200) includes a curved part (211). The interval (w) between the blank edge curved part (211) and the edge (24) of the die (20) differs between one end portion (211a) and the other end portion (211b) of the blank edge curved part (211). The blank holder (30) holds a portion of the edge (201) of the blank (200) together with the die (20). The interval (d) between an edge (34) of the blank holder (30) and the edge (201) of the blank (200) held between the blank holder (30) and the die (20) changes along the edge (201) of the blank (200). The interval (d) is the largest at the blank edge curved part (211).

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Notices, Deadlines & Correspondence

Patent Information

Application #
Filing Date
20 August 2025
Publication Number
37/2025
Publication Type
INA
Invention Field
MECHANICAL ENGINEERING
Status
Email
Parent Application

Applicants

NIPPON STEEL CORPORATION
6-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo 1008071

Inventors

1. URUSHIBATA, Ryo
c/o NIPPON STEEL CORPORATION, 6-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo 1008071
2. ITO, Yasuhiro
c/o NIPPON STEEL CORPORATION, 6-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo 1008071

Specification

Documents

Application Documents

# Name Date
1 202517078941-STATEMENT OF UNDERTAKING (FORM 3) [20-08-2025(online)].pdf 2025-08-20
2 202517078941-REQUEST FOR EXAMINATION (FORM-18) [20-08-2025(online)].pdf 2025-08-20
3 202517078941-PROOF OF RIGHT [20-08-2025(online)].pdf 2025-08-20
4 202517078941-POWER OF AUTHORITY [20-08-2025(online)].pdf 2025-08-20
5 202517078941-NOTIFICATION OF INT. APPLN. NO. & FILING DATE (PCT-RO-105-PCT Pamphlet) [20-08-2025(online)].pdf 2025-08-20
6 202517078941-FORM 18 [20-08-2025(online)].pdf 2025-08-20
7 202517078941-FORM 1 [20-08-2025(online)].pdf 2025-08-20
8 202517078941-FIGURE OF ABSTRACT [20-08-2025(online)].pdf 2025-08-20
9 202517078941-DRAWINGS [20-08-2025(online)].pdf 2025-08-20
10 202517078941-DECLARATION OF INVENTORSHIP (FORM 5) [20-08-2025(online)].pdf 2025-08-20
11 202517078941-COMPLETE SPECIFICATION [20-08-2025(online)].pdf 2025-08-20
12 202517078941-MARKED COPIES OF AMENDEMENTS [29-08-2025(online)].pdf 2025-08-29
13 202517078941-FORM 13 [29-08-2025(online)].pdf 2025-08-29
14 202517078941-AMMENDED DOCUMENTS [29-08-2025(online)].pdf 2025-08-29
15 202517078941-FORM-26 [03-09-2025(online)].pdf 2025-09-03