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101. 发明授权

EP3437751B1 METHOD FOR MANUFACTURING PRESS-FORMED ARTICLE 有权转让
公开(公告)号：EP3437751B1
公开(公告)日：2020-02-12
申请号：EP17775070.0
申请日：2017-03-28
申请人： Nippon Steel Corporation
发明人： NISHIMURA, Ryuichi , NAKAZAWA, Yoshiaki
IPC分类号： B21D22/26 , B21D5/01 , B21D24/00

102. 发明公开

EP3584349A1 HOT STAMP MOULDED BODY 审中-公开
公开(公告)号：EP3584349A1
公开(公告)日：2019-12-25
申请号：EP18755033.0
申请日：2018-02-20
申请人： Nippon Steel Corporation
发明人： TODA, Yuri , ABUKAWA, Genki , MAEDA, Daisuke , HIKIDA, Kazuo , FUJINAKA, Shingo
IPC分类号： C22C38/00 , C22C38/60 , B21D22/20 , B21D22/26 , C21D1/18 , C21D9/00 , C21D9/46
摘要： There is provided a hot stamped body including a middle part in sheet thickness and a surface layer arranged at both sides or one side of the middle part in sheet thickness, further including an intermediate layer formed between the middle part in sheet thickness and each surface layer so as to adjoin them, wherein the middle part in sheet thickness has a predetermined composition, the middle part in sheet thickness has a hardness of 500Hv or more and 800Hv or less, the surface layer has a hardness change ΔH 1 in the sheet thickness direction of 10Hv or more and less than 200Hv, and the intermediate layer has a hardness change ΔH 2 in the sheet thickness direction of 50Hv or more and less than 200Hv.

103. 发明授权

EP3296104B1 VERFAHREN ZUR HERSTELLUNG EINES KAROSSERIEBAUTEILS MIT REDUZIERTER RISSNEIGUNG 有权
公开(公告)号：EP3296104B1
公开(公告)日：2019-11-20
申请号：EP17191247.0
申请日：2017-09-15
申请人： Benteler Automobiltechnik GmbH
发明人： Frost, Georg , Kettler, Markus , Bake, Karsten
IPC分类号： B32B15/01 , B21D22/02 , C21D8/02 , C21D9/46 , C21D1/18 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/18 , C22C38/28 , C22C38/32 , B21D22/26 , C21D8/00

104. 发明授权

EP3179207B1 LINE DISPLACEMENT EVALUATION METHOD, LINE DISPLACEMENT EVALUATION DEVICE, PROGRAM, AND RECORDING MEDIUM 有权转让
公开(公告)号：EP3179207B1
公开(公告)日：2019-10-16
申请号：EP15829773.9
申请日：2015-08-06
申请人： Nippon Steel Corporation
发明人： SAITO Masahiro , YOSHIDA Tohru
IPC分类号： G01B21/20 , G01B11/24 , B21D22/26

105. 发明公开

EP3546081A1 MANUFACTURING METHOD FOR QUENCHED MEMBER AND QUENCHED MEMBER 有权
公开(公告)号：EP3546081A1
公开(公告)日：2019-10-02
申请号：EP18766980.9
申请日：2018-03-14
申请人： Nippon Steel Corporation
发明人： SUZUKI, Toshiya , NAKAZAWA, Yoshiaki
IPC分类号： B21D22/20 , B21D5/01 , B21D22/26
摘要： A method of manufacturing a quenched member according to the present disclosure includes a heating process of heating a pressed intermediate article to an Ac3 transformation point of a steel sheet or higher, the intermediate article having been processed so as to have a rectangular cross-section and so as to include a terminal portion at which two terminal edges of the steel sheet are aligned with each other at a same side of the rectangular cross-section, and a quenching process of quenching the intermediate article heated in the heating process inside a die.

106. 发明公开

EP3524367A1 METHOD AND DEVICE FOR MANUFACTURING PRESS FORMED ARTICLE 有权
公开(公告)号：EP3524367A1
公开(公告)日：2019-08-14
申请号：EP17858499.1
申请日：2017-10-05
申请人： Nippon Steel Corporation
发明人： MIYAGI, Takashi , TANAKA, Yasuharu , OGAWA, Misao , ASO, Toshimitsu , YAMAMOTO, Takashi
IPC分类号： B21D22/26 , B21D5/01 , B21D22/20 , B21D24/00
摘要： The manufacturing method includes a first step in which a pad holding state is established and a second step in which pad draw forming is performed after the first step is completed. In the pad holding state, (a) a part of a blank 15 to be formed into a top plate 21 is held between a pad 13 and a punch 11, and a part of the blank 15 to be formed into a flange 25 is held between a die 14 and a blank holder 12, (b) in a specific press directional cross section of a part of the blank 15 to be formed into a first part, the position of the contacting surface of the blank holder 12 that makes contact with the blank 15 in the direction of pressing is located toward the punch 11 in the direction of arrangement of the pad 13 and the punch 11, compared with the position of the contacting surface of the pad 13 that makes contact with the blank 15 in the direction of pressing, (c) a vertically-reversing cross-sectional angle is more than 0° and equal to or less than 80°, and (d) in a press directional cross section that is different from the specific press directional cross section, the position of the contacting surface of the pad 13 that makes contact with the blank 15 in the direction of the pressing is located toward the pad 13 in the direction of the arrangement, compared with the position of the contacting surface of the blank holder 12 that makes contact with the blank 15 in the direction of pressing.

107. 发明授权

EP2998042B1 PRESSWERKZEUG 有权
公开(公告)号：EP2998042B1
公开(公告)日：2019-07-24
申请号：EP15182161.8
申请日：2015-08-24
申请人： Volkswagen Aktiengesellschaft
发明人： Kano, Marita , Greco, Danilo , Malek, Roland
IPC分类号： B21D22/22 , B21D22/26

108. 发明公开

EP3409393A1 PANEL-SHAPED MOLDED ARTICLE, VEHICLE DOOR, AND METHOD FOR MANUFACTURING PANEL-SHAPED MOLDED ARTICLE 有权转让
公开(公告)号：EP3409393A1
公开(公告)日：2018-12-05
申请号：EP17744423.9
申请日：2017-01-27
申请人： Nippon Steel & Sumitomo Metal Corporation
发明人： OTSUKA, Kenichiro , NAKAZAWA, Yoshiaki , KAWACHI, Takeshi , KASEDA, Yoshiyuki
IPC分类号： B21D22/26 , B21D22/20 , B60J5/00
CPC分类号： B21D22/20 , B21D22/26 , B60J5/00
摘要： An object of the present invention is to provide a panel-like formed product having an excellent collision property. The panel-like formed product (1) includes a polygonal top board (2), two or more vertical walls (5), and a flange (7). The vertical walls (5) extend from two or more sides of the top board (2), and include at least two adjacent vertical walls (5) extending from at least two adjacent sides of the top board (2). The flange (7) connects to lower ends of the vertical walls (5) and spreads in directions in which the top board (2) spreads. The top board (2) includes a frame portion (3) including the two or more sides of the top board from which the vertical walls extend, and a concave portion (4) which is located at an inner side of the frame portion (3) and recedes from the frame portion (3). The two or more adjacent vertical walls (5) include a first vertical wall section (5A), a stair (6), and a second vertical wall section (5B). The stair (6) connects to a lower end of the first vertical wall section (5A) and spreads in the directions in which the top board spreads. The second vertical wall section (5B) connects to an outer edge of the stair (6) and extends in a direction in which the first vertical wall section (5A) extends. The flange (7) connects to a lower end of the second vertical wall section (5B).

109. 发明授权

EP3243578B1 VERFAHREN UND PRESSENWERKZEUG ZUR HERSTELLUNG EINES KOMPLEXEN BLECHFORMTEILS MIT HOHER ZIEHTIEFE 有权
公开(公告)号：EP3243578B1
公开(公告)日：2018-10-03
申请号：EP17000777.7
申请日：2017-05-05
申请人： AUDI AG
发明人： Alpen, Timo , Dierolf, Holger , Spindler, Jörg , Schilling, Torsten , Oberpriller, Bernhard
IPC分类号： B21D22/22 , B21D22/26
CPC分类号： B21D22/06 , B21D22/22 , B21D22/26

110. 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.

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