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1. 发明公开

EP3459649A1 METHOD OF MANUFACTURING PRESS-FORMED ARTICLE, AND MANUFACTURING LINE 有权转让
公开(公告)号：EP3459649A1
公开(公告)日：2019-03-27
申请号：EP17799430.8
申请日：2017-05-17
申请人： Nippon Steel & Sumitomo Metal Corporation
发明人： NAKAZAWA, Yoshiaki , NOMURA, Naruhiko , SUZUKI, Toshiya , KUBO, Masahiro , ITO, Yasuhiro
IPC分类号： B21D22/20 , B21J5/00 , B21J5/02 , B21J9/00 , B21J9/08 , B21J13/10 , C22C38/00 , C22C38/06 , C22C38/58
摘要： A method of producing a press-formed product includes a steel plate heating step, a hot forging step and a hot stamping step. In the steel plate heating step, a steel plate is heated to 950°C or more. In the hot forging step, the heated steel plate is forged to form a varying-thickness steel plate. In the hot stamping step, the heated varying-thickness steel plate is subjected to press-working by a press tooling to form a press-formed product, and the press-formed product that is formed is cooled inside the press tooling. Thus, a press-formed product that has high strength and for which a reduction in weight is possible can be produced.

2. 发明公开

EP3275566A1 METHOD FOR PRODUCING PRESS-MOLDED PRODUCT, PRESS-MOLDED PRODUCT, DIE AND PRESSING DEVICE 有权转让
标题翻译：生产压模产品，压模产品，模具和压制装置的方法
公开(公告)号：EP3275566A1
公开(公告)日：2018-01-31
申请号：EP16783249.2
申请日：2016-04-21
申请人： Nippon Steel & Sumitomo Metal Corporation
发明人： KUBO, Masahiro , YOSHIDA, Hiroshi , MIYAGI, Takashi , SUZUKI, Toshiya , NAKAZAWA, Yoshiaki
IPC分类号： B21D22/26 , B21D5/01
CPC分类号： B21D22/26 , B21D5/01
摘要： A manufacturing method for a pressed component of the present disclosure is a manufacturing method for a pressed component configured including an elongated top plate, ridge line portions at both short direction ends of the top plate, and vertical walls that face each other in a state extending from the ridge line portions. A punch and a die are employed to curve a blank into a convex profile bowing from the punch side toward the die side in a state in which the punch is caused to contact a first portion of the blank where the two end ridge line portions are to be formed, and to sandwich a second portion of the blank where the top plate is to be formed between the die and the punch and indent the second portion from the die side toward the punch side.
摘要翻译：本发明的被按压部件的制造方法是一种被加压部件的制造方法，该被加工部件包括细长的顶板，在该顶板的短边方向两端的棱线部，以及以延伸的状态相对的纵壁来自脊线部分。冲头和冲模被用于在使冲头与两端脊线部分所在的坯料的第一部分接触的状态下将坯料弯曲成从冲头侧朝向冲模侧弯曲的凸形轮廓并且将要形成顶板的第二部分夹在模具和冲头之间，并将第二部分从模头侧朝冲头侧缩进。

3. 发明公开

EP3492292A1 EXTERIOR PANEL OF AUTOMOBILE 有权转让
公开(公告)号：EP3492292A1
公开(公告)日：2019-06-05
申请号：EP17834423.0
申请日：2017-07-26
申请人： Nippon Steel & Sumitomo Metal Corporation
发明人： SUZUKI, Toshiya , NAKAZAWA, Yoshiaki , ITO, Yasuhiro , SHIRAKAMI, Satoshi
IPC分类号： B60J5/00
摘要： [Object] Provided is a configuration that makes up for a lack of tensile rigidity and a lack of collision properties at the same time.
[Solution] An automotive exterior panel according to the present invention: an exterior material 110; and a reinforcing member 120 that is in contact along an automobile inside surface of the exterior material 110 and of which a second moment of area in a direction orthogonal to the exterior material is less than or equal to 15,000 mm 4 in a cross section orthogonal to a longitudinal direction of the reinforcing member. By this configuration, the second moment of area in a direction orthogonal to the longitudinal direction of the reinforcing member 120 is made less than or equal to 15,000 mm 4 , and hence a lack of tensile rigidity can be made up for at the same time.

4. 发明公开

EP3476631A1 SHOCK ABSORPTION MEMBER 审中-公开
公开(公告)号：EP3476631A1
公开(公告)日：2019-05-01
申请号：EP17834424.8
申请日：2017-07-26
申请人： Nippon Steel & Sumitomo Metal Corporation
发明人： SUZUKI, Toshiya , NAKAZAWA, Yoshiaki , ITO, Yasuhiro , SHIRAKAMI, Satoshi
IPC分类号： B60J5/00 , B60R21/04
摘要： [Object] To make it possible to make impact absorption at the time of a collision even when there is no sufficient space.
[Solution] An impact absorption member according to the present invention includes: a member that is placed adjacent to an exterior material 110 of an automobile and in which a height in a direction orthogonal to the exterior material is larger than a width in a direction along the exterior material in a cross section orthogonal to an extending direction of the member. By this configuration, a first member 122 and a second member 124 are arranged so as to extend in different directions and be adjacent to the exterior material 110 of an automobile, and therefore impact absorption at the time of a collision can be made even when there is no sufficient space.

5. 发明公开

EP3406364A1 METHOD FOR MANUFACTURING PRESS-MOLDED ARTICLE, AND PRESS APPARATUS 有权转让
公开(公告)号：EP3406364A1
公开(公告)日：2018-11-28
申请号：EP17741496.8
申请日：2017-01-19
申请人： Nippon Steel & Sumitomo Metal Corporation
发明人： SUZUKI, Toshiya , NAKAZAWA, Yoshiaki , NAKATA, Masahiro
IPC分类号： B21D22/26 , B21D24/00
CPC分类号： B21D22/21 , B21D22/26 , B21D24/00 , B21D24/04 , B21D53/88
摘要： A method of manufacturing a press-molded article including side walls extending, from a pair of ridge line portions positioned at both width direction sides of a top plate, toward one plate thickness direction side of the top plate, the method includes: a first process of projecting an inner pad, provided at an apex portion of a punch, from the punch toward a side of a die and disposing a metal sheet blank on the inner pad, and projecting a die pad, provided at the die, from the die toward a side of the punch and disposing the die pad at a position separated from the inner pad by a predetermined distance that is greater than a plate thickness of the metal sheet blank; a second process of moving the die toward the punch side relative to the die pad, the inner pad, and the punch, forming the side walls using the die and the punch, and integrating the die pad with the die; and a third process of moving the die and the die pad, which have been integrated, and the inner pad, toward the punch side relative to the punch to form the top plate.

6. 发明公开

EP3511086A1 HOT PRESS DEVICE 有权转让
公开(公告)号：EP3511086A1
公开(公告)日：2019-07-17
申请号：EP17848653.6
申请日：2017-08-31
申请人： Nippon Steel & Sumitomo Metal Corporation
发明人： NOMURA, Naruhiko , NAKAZAWA, Yoshiaki , SUZUKI, Toshiya , ITO, Yasuhiro , MORIMOTO, Ryousuke
IPC分类号： B21D22/20 , B21D24/00 , B21D43/05
摘要： A hot press device according to the present disclosure includes a first press, a second press, a conveyance device linking the first press and the second press together, and a heating furnace provided within a conveyance range of the conveyance device.

7. 发明公开

EP3372322A1 METHOD FOR MANUFACTURING PRESS-MOLDED ARTICLE, PRESS DEVICE, AND PRESS LINE 有权转让
公开(公告)号：EP3372322A1
公开(公告)日：2018-09-12
申请号：EP16873021.6
申请日：2016-12-07
申请人： Nippon Steel & Sumitomo Metal Corporation
发明人： SUZUKI, Toshiya , NAKAZAWA, Yoshiaki , NAKATA, Masahiro
IPC分类号： B21D22/26 , B21D5/01 , B21D24/00
CPC分类号： B21D22/26 , B21D53/88
摘要： In a pressed component manufacturing method according to the present disclosure, a pressed component is manufactured from an intermediate stock. The pressed component manufacturing method employs a press including a die provided with a die pad, and a punch provided with an inner pad. The intermediate stock includes a pair of bent portions inflected toward one plate thickness direction side, with a spacing between the pair of bent portions set as a narrower spacing than a width of a top plate of the pressed component. The pressed component manufacturing method includes a first step, a second step, and a third step. The first step involves gripping a portion of the intermediate stock between the pair of bent portions with the inner pad and the die pad in a state in which the inner pad projects from the punch toward the die side, and one plate thickness direction side of the intermediate stock is on the side of the inner pad. The second step involves moving the die toward the punch side and forming the vertical walls of the pressed component. The third step involves integrating the die and the die pad into a single unit, and then moving the integrated die and the die pad, and the inner pad toward the punch side to form the top plate of the pressed component.

8. 发明公开

EP3266534A1 PRESS-FORMING METHOD AND PRESS-FORMING DEVICE 有权转让
标题翻译：压制成形方法和压制成形装置
公开(公告)号：EP3266534A1
公开(公告)日：2018-01-10
申请号：EP16758980.3
申请日：2016-03-02
申请人： Nippon Steel & Sumitomo Metal Corporation
发明人： SUZUKI, Toshiya , NAKAZAWA, Yoshiaki , NAKATA, Masahiro
IPC分类号： B21D24/00 , B21D22/20 , B21D22/26
CPC分类号： B21D22/20 , B21D22/26 , B21D24/00 , B21D24/04
摘要： This press forming method is a press forming method of manufacturing a press-formed article from a workpiece sheet using a press forming apparatus including a punch, a die, a punch pad, and a die pad, in which, when the workpiece sheet is clamped between the die and the punch, a surface of the workpiece sheet on a die side in a section between a point in contact with a die bottom end shoulder portion and a point in contact with the die pad is in non-contact with the die and the die pad, and an end surface of a punch side blank holding surface adjacent to a punch shoulder portion is flush with the punch shoulder portion or located on a more inner side of the punch than the punch shoulder portion.
摘要翻译：该冲压成形方法是使用具有冲头，冲模，冲头垫，冲模垫的冲压成形装置从工件片材制造冲压成形品的冲压成形方法，其中，在夹持工件片时在所述模具和所述冲头之间，在与模具底端肩部接触的点和与所述模具衬垫接触的点之间的部分中的模具侧的工件片材的表面不与所述模具接触，并且，冲模垫和冲头侧坯料保持表面的与冲头肩部部分相邻的端部表面与冲头肩部部分齐平或者位于冲头的比冲头肩部部分更靠内侧。

9. 发明公开

EP2865459A1 METHOD AND APPARATUS FOR PRODUCING PRESS-MOULDED ARTICLE 有权转让
标题翻译： VERFAHREN UND VORRICHTUNG ZUR HERSTELLUNG PRESSGEFORMTER ARTIKEL
公开(公告)号：EP2865459A1
公开(公告)日：2015-04-29
申请号：EP13807701.1
申请日：2013-06-20
申请人： Nippon Steel & Sumitomo Metal Corporation
发明人： NISHIMURA, Ryuichi , OTSUKA, Kenichiro , NAKAZAWA, Yoshiaki , MASUO, Yoshihiko , SUZUKI, Toshiya , IKEDA, Yoshiyuki
IPC分类号： B21D22/26 , B21D24/00 , B21D53/88
CPC分类号： B21D17/02 , B21D5/01 , B21D22/26 , B21D53/88 , B21J5/12 , B21J13/02
摘要： A press-formed body (15) made of a high-tensile strength steel sheet of 390 MPa or more including a groove bottom part (15a), ridge line parts (15b, 15b) continuous to the groove bottom part (15a), and side wall parts (15c, 15c) continuous to the ridge line parts (15b, 15b), and in which an outward flange (16) is formed at an end part in a longitudinal direction is manufactured by a press-forming apparatus including a punch (11), a die (12), and a pad (14) which presses and binds a press-forming material (13) to the punch (11). At a press-forming time, the pad (14) binds a part to be formed into the groove bottom part (15a) and a part having a length of one-third or more of a cross-sectional peripheral length of the ridge line part (15b) starting from a connecting part with the groove bottom part (15a) from among a part to be formed into the ridge line part (15b) in a vicinity of the outward flange (16) at the press-forming material (13). It is thereby possible to surely form the press-formed body (15) without providing cutouts at a ridge line part flange portion of the outward flange, or generating lowering of material yield.
摘要翻译：包括槽底部（15a），与槽底部（15a）连续的棱线部（15b，15b）的390MPa以上的高强度钢板构成的冲压成形体（15）通过包括冲头的冲压成形设备制造与棱线部分（15b，15b）连续的侧壁部分（15c，15c），并且其中在纵向方向上的端部处形成向外凸缘（16）（11），模具（12）和将冲压成形材料（13）压合并结合到冲头（11）的垫（14）。在压制成形时，焊盘（14）将要形成的部分粘合到槽底部分（15a）中，并且具有三分之一以上的长度为脊线部分的横截面周长的部分（15b）从与凹槽底部（15a）的连接部分从形成在所述压制成形材料（13）的所述向外凸缘（16）附近的所述脊线部分（15b）中的部分开始，。由此，可以在外凸缘的棱线部凸缘部不设置切口的情况下可靠地形成冲压成形体（15），或者降低材料成品率。

10. 发明授权

EP2865459B1 METHOD AND APPARATUS FOR PRODUCING PRESS-MOULDED ARTICLE 有权转让
公开(公告)号：EP2865459B1
公开(公告)日：2018-08-22
申请号：EP13807701.1
申请日：2013-06-20
申请人： Nippon Steel & Sumitomo Metal Corporation
发明人： NISHIMURA, Ryuichi , OTSUKA, Kenichiro , NAKAZAWA, Yoshiaki , MASUO, Yoshihiko , SUZUKI, Toshiya , IKEDA, Yoshiyuki
IPC分类号： B21D22/26 , B21D53/88 , B21D5/01
CPC分类号： B21D17/02 , B21D5/01 , B21D22/26 , B21D53/88 , B21J5/12 , B21J13/02
摘要： A press-formed body (15) made of a high-tensile strength steel sheet of 390 MPa or more including a groove bottom part (15a), ridge line parts (15b, 15b) continuous to the groove bottom part (15a), and side wall parts (15c, 15c) continuous to the ridge line parts (15b, 15b), and in which an outward flange (16) is formed at an end part in a longitudinal direction is manufactured by a press-forming apparatus including a punch (11), a die (12), and a pad (14) which presses and binds a press-forming material (13) to the punch (11). At a press-forming time, the pad (14) binds a part to be formed into the groove bottom part (15a) and a part having a length of one-third or more of a cross-sectional peripheral length of the ridge line part (15b) starting from a connecting part with the groove bottom part (15a) from among a part to be formed into the ridge line part (15b) in a vicinity of the outward flange (16) at the press-forming material (13). It is thereby possible to surely form the press-formed body (15) without providing cutouts at a ridge line part flange portion of the outward flange, or generating lowering of material yield.

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