公开(公告)号：EP4265392B1

公开(公告)日：2024-09-11

申请号：EP22169284.1

申请日：2022-04-21

IPC分类号： B29C51/08 ,  B29C51/38 ,  B65B47/06 ,  B21D22/22 ,  B21D24/04 ,  B31B50/59 ,  B31F1/00 ,  B29K1/00 ,  B29L31/00

CPC分类号： B29C51/087 ,  B29C51/38 ,  B65B47/06 ,  B31F1/0077 ,  B31B50/592 ,  B21D22/22 ,  B21D24/04 ,  B29K2001/0020130101 ,  B29L2031/713220130101 ,  B29L2031/716220130101 ,  B29C51/08 ,  B29C51/004

公开(公告)号：EP3088094A4

公开(公告)日：2017-08-09

申请号：EP14873861

申请日：2014-12-10

申请人： NIPPON STEEL & SUMITOMO METAL CORP

发明人： NISHIMURA RYUICHI ,  SAKAMOTO YORIFUMI ,  YONEBAYASHI TORU ,  MASUO YOSHIHIKO ,  NAKAZAWA YOSHIAKI ,  HASHIMOTO KOJI

IPC分类号： B21D25/04 ,  B21D24/04

CPC分类号： B21D24/04 ,  B21D22/22 ,  B21D25/04 ,  B21D35/003

公开(公告)号：EP2878392B1

公开(公告)日：2017-06-07

申请号：EP12890327.5

申请日：2012-12-19

申请人： Nippon Steel & Sumitomo Metal Corporation

发明人： YOSHIDA Tohru

IPC分类号： B21D24/12 ,  B21D5/01 ,  B21D22/26

CPC分类号： B21D24/12 ,  B21D5/01 ,  B21D22/22 ,  B21D22/26 ,  B21D24/04 ,  B21D53/88 ,  B21J5/00 ,  B21J13/02

摘要： A press-forming tool comprising: a punch including a punch portion and a plate portion transferring shape to a blank material; a die paired with the punch and opposes the punch portion; a wrinkle suppression mold including a first surface opposing the plate portion and comes into contact with the plate portion at a press-forming ending point, a second surface opposing the die and holds the blank material along with the die, and a third surface continued between the first and second surface and opposes the punch portion, and disposed between the third surface and the punch portion via a gap; a pressure receiving portion including a groove portion on the first surface of the wrinkle suppression mold; and a wrinkle suppression force increasing portion disposed on a surface opposing the first surface of the plate portion, protrudes toward the pressure receiving portion, and generates a reaction force opposed to a pressing direction when pressed in the pressing direction in end-phase of a press-forming.

摘要翻译： 一种冲压成形用具，其特征在于，具有：冲头，其具有冲头部和将坯料转印到坯料上的板部; 与冲头成对并与冲头部分相对的模具; 所述防皱模具具有与所述板部相对并在冲压成形终止点与所述板部抵接的第一面，与所述模具相对且将所述坯料与所述模一起保持的第二面， 所述第一表面和所述第二表面与所述冲头部分相对并且经由间隙设置在所述第三表面与所述冲头部分之间; 压力接收部分，其包括在所述抗皱模具的所述第一表面上的凹槽部分; 以及设置在与所述板部的所述第一表面相对的表面上的褶皱抑制力增大部，所述褶皱抑制力增加部朝向所述受压部突出，并且产生与在按压时的按压方向上按压时的按压方向相反的反作用力 -成型。

公开(公告)号：EP3135394A4

公开(公告)日：2017-04-26

申请号：EP15783938

申请日：2015-02-26

申请人： JFE STEEL CORP

发明人： NAKAGAITO TATSUYA ,  TOKITA YUICHI ,  MINOTE TORU ,  TAMAI YOSHIKIYO

IPC分类号： B21D22/20 ,  B21D24/04

CPC分类号： B21D22/022 ,  B21D22/20 ,  B21D22/208 ,  B21D24/04 ,  B21D37/16

摘要： In manufacturing a hot press forming part by hot pressing, using a tool of press forming, a coated steel sheet that is obtained by forming a Zn-Ni coating layer on a surface of a steel sheet, the tool of press forming having a die, a blank holder, and a punch, edges of the coated steel sheet heated to a temperature range of Ac 3 transformation temperature to 1000 °C are cooled with the edges squeezed between the die and the blank holder to a temperature of 550 °C or lower and 400 °C or higher at a cooling rate of 100 °C/s or higher, press forming is performed so that the press forming is started when the edges reach a temperature of 550 °C or lower and 400 °C or higher, and after the press forming, a formed body is quenched with the formed body held at the press bottom dead center while being squeezed by the tool of press forming.

摘要翻译： 在通过热压制造热压成型部件时，使用压制成型工具，通过在钢板表面上形成Zn-Ni涂层而获得的涂层钢板，具有模具的压制成型工具， 坯料夹持器和冲头，将加热到Ac 3相变点至1000℃温度范围的涂覆钢板的边缘冷却，将模具和压模夹具之间的边缘挤压到550℃或更低的温度 以100℃/秒以上的冷却速度进行400℃以上的加压成形，在边缘达到550℃以下且400℃以上的温度时开始冲压成形， 在冲压成形之后，一边用冲压成形工具挤压成形体，一边将成形体保持在冲压下止点，对成形体进行淬火。

公开(公告)号：EP3088094A1

公开(公告)日：2016-11-02

申请号：EP14873861.0

申请日：2014-12-10

申请人： Nippon Steel & Sumitomo Metal Corporation

发明人： NISHIMURA, Ryuichi ,  SAKAMOTO, Yorifumi ,  YONEBAYASHI, Toru ,  MASUO, Yoshihiko ,  NAKAZAWA, Yoshiaki ,  HASHIMOTO, Koji

IPC分类号： B21D25/04 ,  B21D24/04

CPC分类号： B21D24/04 ,  B21D22/22 ,  B21D25/04 ,  B21D35/003

摘要： There is provided a manufacturing apparatus and a manufacturing method for a stretch-formed product which can improve the yield of material in the stretch forming performed while clamping the blank by the lock beads. The manufacturing apparatus for a stretch-formed product includes a die and a blank holder which have clamping surfaces facing each other, a punch that, in a state where a margin of a blank of a sheet material is clamped by the clamping surfaces of the die and the blank holder, relatively presses a forming region of the blank into the die and thereby performs stretch forming on the forming region of the blank, and lock beads that are provided on the clamping surfaces of the die and the blank holder in mutually similar shapes and have first surfaces, second surfaces that intersect with the first surfaces, and third surfaces that intersect with the second surfaces from outer edges toward the centers of the die and the blank holder, the first surfaces each having a plurality of depression-protrusion parts.

摘要翻译： 提供了一种用于拉伸成型产品的制造装置和制造方法，其可以在通过锁珠夹持坯料的同时提高在拉伸成形中的材料的产率。 拉伸成型制品的制造装置包括具有彼此相对的夹紧表面的模具和坯料保持器，在片材的坯料的边缘被模具的夹紧表面夹紧的状态下的冲头 并且坯料夹持器相对地将坯料的成形区域压入模具中，从而在坯料的成形区域上进行拉伸成形，并且以相互相似的形状在模具和坯料夹持器的夹紧表面上设置锁定小珠 并且具有第一表面，与第一表面相交的第二表面，以及从外边缘朝向模具和坯料保持器的中心与第二表面相交的第三表面，第一表面各自具有多个凹陷突起部分。

公开(公告)号：EP2754509A4

公开(公告)日：2015-04-29

申请号：EP12830768

申请日：2012-08-21

申请人： M S INC

发明人： KATSUMA HIDETO ,  MORIIZUMI SHUJI

IPC分类号： B21D24/04 ,  B21D22/22 ,  B21D24/10

CPC分类号： B21D24/04 ,  B21D22/22

摘要： Provided is a means for efficiently imparting high tensile stiffness to a press stamping product by high forming stability, wherein that means can narrow a sacrificial constricted part, can greatly improve material yields, and can effectively resolve strain due to actual cross-sectional length differences in punch shapes in press forming accompanied by restriction of a sheet-shaped workpiece. When pressing between a punch (11) and a die (21) accompanied by expansion from a peripheral side while constraining the peripheral part of the sheet shaped workpiece (P1) by a plurality of blank holders (3) formed from a pair of sandwiching members (3a, 3b), in a process up to pressing after contact of a sheet shaped workpiece (P1) with a forming surface (10) of the punch (11), each blank holder (3) is displaced in the pressing direction and the sheet shaped workpiece (P1) is superimposed on the forming surface (10) of the punch (11), and then displaced in the outside direction and the sheet shaped workpiece (P1) is expanded. After completion of pressing, each blank holder (3) is displaced along the opposite of the pressing direction, and the press stamping product (P1) is disengaged from the punch (11). Furthermore, after both sandwiching members (3a, 3b) are made to detach and the press stamping product (P) removed, both sandwiching members (3a, 3b) are displaced toward the inside direction, and a sheet shaped workpiece (P1) is returned to an initial position prior to being constrained.

公开(公告)号：EP2603334A1

公开(公告)日：2013-06-19

申请号：EP11743835.8

申请日：2011-08-15

申请人： Schuler Pressen GmbH

发明人： SCHÖLLHAMMER, Dietmar ,  SCHMEINK, Martin ,  DANGELMAYR, Andreas ,  FAHRENBACH, Jürgen ,  HOFELE, Hans

IPC分类号： B21D24/00 ,  B21D24/04 ,  B30B1/26 ,  B30B7/04

CPC分类号： B21D24/04 ,  B21D24/00 ,  B21D53/88 ,  B30B1/14 ,  B30B1/18 ,  B30B1/266 ,  B30B1/28

摘要： The drawing press (10) according to the invention has a stationary blank holder (35) which is supported on the press frame (11). The blank holder (35) is assigned a slide (15) with a die tool (18), the slide (15) being moved via a slide drive with a blocking position. The blocking position is reached, for example, by a gearing (22) which, in the blocking position, does not transmit any movement from the gearing output to the driving servomotor (23) and/or (24). This is achieved, for example, by an eccentric gearing (25, 26) when the latter is in an extended position. In order to carry out the actual drawing stroke, the punching tool (34) is mounted in a vertically moveable manner. The assigned moving bed (32) is raised or lowered from the press bed (31) via a bed drive (36). A servomotor drive with a nonlinear gearing, for example an eccentric gearing, preferably serves in turn as the bed drive (36).

公开(公告)号：EP2198986A4

公开(公告)日：2011-10-05

申请号：EP08852659

申请日：2008-11-10

申请人： TOYOTA MOTOR CO LTD

发明人： KUBO MASAO

IPC分类号： B21D24/04 ,  B21D22/02 ,  B21D22/06 ,  B21D22/26 ,  B21D53/88

CPC分类号： B21D22/02 ,  B21D22/06 ,  B21D22/26 ,  B21D24/02 ,  B21D24/04 ,  B21D53/88

摘要： This aims to provide a press process for drawing a plate material (50) into a predetermined shape. This press process performs a first unwrinkling treatment and a second unwrinkling treatment sequentially for unwrinkling the material (50). Between these first and second unwrinkling treatments, an introduction for deforming the material (50) is made so that the portion of the material (50) on the side to be subjected to the second unwrinkling treatment may be positioned on the side of a drawing direction with respect to the portion subjected to the first unwrinkling treatment. This first unwrinkling treatment is made on such a portion to be unwrinkled in the material (50) as is located on the side of a larger drawing depth for the predetermined shape. On the other hand, the second unwrinkling treatment is made on such a portion to be unwrinkled as is located on the side of a smaller drawing depth. The press process is advantageous for the cracks or wrinkles of the material, if the molding has a relatively complicated curve shape so that the drawing quantity (or the drawing depth) of the material to be drawn is not homogeneous, so that the press process can improve the pressing stability.

公开(公告)号：EP2202011A1

公开(公告)日：2010-06-30

申请号：EP08855410.0

申请日：2008-11-11

申请人： Toyota Jidosha Kabushiki Kaisha

发明人： KUBO, Masao

IPC分类号： B21D24/00 ,  B21D22/22

CPC分类号： B21D22/02 ,  B21D22/06 ,  B21D22/22 ,  B21D24/04

摘要： This aims to provide a press-apparatus mold capable of improving the yield of a blank while preventing wrinkles and cracks in a finished product, and an open-drawing method according to the press-apparatus mold. Within a range corresponding to the excess thickness portion (6) of a blank (4), the width of a punch (3) is gradually enlarged toward the end of the punch (3), thereby to curve boundaries (or the punch ridgelines (3d and 3e)) formed by the upper face (3a) and the side faces (3b and 3c) of the punch (3), toward the end of the punch (3) and to the widthwise outer sides of the punch (3). At the same time, the width of the recess (1a) of a die (1) is gradually enlarged toward the end of the recess (1a), thereby to curve a drawing profile (8) set by the punch (3) and the die (1), toward the ends of the punch (3) and the recess (1a) and to the widthwise outer sides of the punch (3) and the recess (1a).

摘要翻译： 本发明的目的在于提供一种能够提高成品的成品率，同时防止成品中的褶皱和裂纹的冲压装置模具，以及根据压制装置模具的开放拉拔方法。 在对应于坯料（4）的多余厚度部分（6）的范围内，冲头（3）的宽度朝向冲头（3）的端部逐渐扩大，从而弯曲边界（或冲头脊线 （3）的上表面（3a）和侧面（3b，3c）形成的，朝向冲头（3）的端部和冲头（3）的宽度方向外侧面形成的， 。 同时，模具（1）的凹部（1a）的宽度朝向凹部（1a）的端部逐渐扩大，从而弯曲由冲头（3）设定的拉伸轮廓（8）和 （1），朝向冲头（3）和凹部（1a）的端部以及冲头（3）和凹部（1a）的宽度方向外侧。

公开(公告)号：EP1981663B1

公开(公告)日：2010-05-26

申请号：EP07703887.5

申请日：2007-01-16

申请人： Ford Global Technologies, LLC

发明人： HALLFELDT, Torsten ,  PFLITSCH, Raymund ,  WESEMANN, Jürgen ,  GREISERT, Dr. Carsten

IPC分类号： B21D22/22 ,  B21D24/04

CPC分类号： B21D24/04 ,  B21D22/22