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1. 发明公开

EP1970137A1 DOWEL FORMING METHOD FOR BUCKLE BASE MEMBER 审中-公开
标题翻译： SPANNERZEUGUNGSVERFAHRENFÜRSCHNALLENBISISGLIED
公开(公告)号：EP1970137A1
公开(公告)日：2008-09-17
申请号：EP06843698.9
申请日：2006-12-25
申请人： NISSHIN STEEL CO., LTD. , TAKATA CORPORATION
发明人： SASAKI, Hirokazu , NAKAMURA, Naofumi , MORIKAWA, Shigeru , HASHIMOTO, Hideto , KIMURA, Takaaki , KAWAI, Yoshihiko
IPC分类号： B21D28/10 , B21D28/16 , B21D53/88 , B60R22/12
CPC分类号： B21D53/46 , B21D28/10
摘要： When forming a dowel section by performing press working on each of portions constituting side walls of a buckle base member, a die of a negative clearance with a punch portion (2) is used whose length or diameter is larger than a length or diameter of a die portion (3), the dowel section being required as a guide for a tongue inserted into a buckle and as a load receiver when a latch member is elongated at a time of collision etc. When a ratio C/t of a clearance C between the punch portion and the die portion with respect to a plate thickness t of the buckle base member is set within a range of - (30 to 5) %, no crack is generated in the root of the dowel section, and the dowel section of a shear cross-section length ≥ 0.25 × t, a shear cross-section starting height ≥ 0.7 × t, and a height of (0.70 to 0.95) × t is easily obtained, and the perpenducularity of the dowel section side surface is enhanced.
摘要翻译：当通过对构成带扣基部构件的侧壁的每个部分进行冲压加工来形成定位销部分时，使用具有冲头部分（2）的负间隙的模具，其长度或直径大于其长度或直径模具部分（3）中，当闩锁部件在碰撞时被拉长时，需要将销钉部分作为插入带扣的舌头的引导件以及作为负载接收器。当C / T之间的间隙C的比率C / 冲压部和模具部相对于带扣基部件的板厚t设定在 - （30〜5）％的范围内，在销部的根部不产生裂纹，剪切截面长度‰¥0.25×t，剪切截面起始高度‰¥0.7×t，高度（0.70〜0.95）×t容易获得，榫头侧面的真实性是增强。

2. 发明公开

EP3409394A1 METHOD FOR MANUFACTURING MOLDED MEMBER 有权转让
公开(公告)号：EP3409394A1
公开(公告)日：2018-12-05
申请号：EP17760153.1
申请日：2017-03-02
申请人： Nisshin Steel Co., Ltd.
发明人： NAKAMURA, Naofumi , YAMAMOTO, Yudai
IPC分类号： B21D22/28 , B21D24/10
CPC分类号： B21D22/28 , B21D22/30
摘要： An object of the present invention is to provide a method for manufacturing a molded member, which can maintain high accuracy circularity of an inner diameter of a tubular body even if a thickness of a base metal sheet varies and which can prevent occurrence of adhesion, seizure of the like of the base metal sheet to a die used for finishing ironing. The base metal sheet is subjected to multi-stage drawing to manufacture the molded member including a tubular body and a flange formed at an end portion of the body. The multi-stage drawing includes: preliminary drawing for forming a preliminary body having a body element from the base metal sheet; at least one compression drawing performed after the preliminary drawing and forming the body by drawing the body element while applying a compressive force to the body element; and at least one finishing ironing performed after the at least one compression drawing to ensure dimensional accuracy.

3. 发明公开

EP3401033A1 MOLDED MATERIAL PRODUCTION METHOD AND MOLDED MATERIAL 有权转让
公开(公告)号：EP3401033A1
公开(公告)日：2018-11-14
申请号：EP17756457.2
申请日：2017-02-21
申请人： Nisshin Steel Co., Ltd.
发明人： NAKAMURA, Naofumi , YAMAMOTO, Yudai
IPC分类号： B21D22/28
摘要： Provided is a method for producing a molded material by molding processes including at least one drawing-out process and at least one drawing process performed after the drawing-out process, in which a width of a punch 31 used in the drawing-out process on a rear end side is wider than a width of the punch on a distal end side, and an ironing process is performed on a region corresponding to a flange of a base metal sheet 2 by pushing the base metal sheet together with the punch 31 into a pushing hole 30a, and the drawing process is carried out using a die and a drawing sleeve, and processing is performed on a region subjected to the ironing process in the drawing-out process, while maintaining a constant mold gap between the die and the drawing sleeve.

4. 发明授权

EP3015184B1 MOLDED MATERIAL MANUFACTURING METHOD AND MOLDED MATERIAL 有权转让
标题翻译：模制材料制造方法和模制材料
公开(公告)号：EP3015184B1
公开(公告)日：2018-02-28
申请号：EP14880374.5
申请日：2014-05-14
申请人： Nisshin Steel Co., Ltd.
发明人： NAKAMURA, Naofumi , YAMAMOTO, Yudai , KUROBE, Jun
IPC分类号： B21D22/20
CPC分类号： B21C1/22 , B21D22/20 , B21D24/06
摘要： A formed material is manufactured by performing forming including at least one drawing-out process and at least one drawing process performed after the drawing-out process. A punch 31 used in the drawing-out process is formed to be wider on a rear end side than on a tip end side. By pushing a raw material metal plate into a pushing hole 30a together with the punch 31, ironing is performed on a region of the raw material metal plate corresponding to a flange portion.

5. 发明公开

EP3100798A1 DIE FOR IRONING PROCESS, AND SHAPED MATERIAL PRODUCTION METHOD 有权转让
标题翻译： MATRIZEFÜRBÜGELVERFAHRENUND VERFAHREN ZUR HERSTELLUNG VON GEFORMTEM材料
公开(公告)号：EP3100798A1
公开(公告)日：2016-12-07
申请号：EP14879298.9
申请日：2014-04-15
申请人： Nisshin Steel Co., Ltd.
发明人： NAKAMURA, Naofumi , YAMAMOTO, Yudai , KUROBE, Jun
IPC分类号： B21D22/30 , B21D22/28
CPC分类号： B21D22/30
摘要： An ironing mold according to the present invention is provided with a punch, and a die which forms a pushing hole with respect to the punch. When the skewness Rsk of a surface treated metal plate is less than -0.6 and no less than -1.3, then the curvature radius of a shoulder portion of the die and a clearance between a radius end and the punch are determined such that Y, which is expressed by {(t re - C re )/t re } × 100, and X, which is expressed by r/t re , satisfy 0
摘要翻译：根据本发明的熨烫模具设置有冲头和相对于冲头形成推动孔的模具。当表面处理金属板的偏斜度Rsk小于-0.6且不小于-1.3时，模具的肩部的曲率半径和半径端与冲头之间的间隙被确定为使得Y 由{（t re-C re）/ t re}×100表示，X表示为r / t re，满足0

6. 发明公开

EP3015184A1 MOLDED MATERIAL MANUFACTURING METHOD AND MOLDED MATERIAL 有权转让
标题翻译：模制材料制造方法和模制材料
公开(公告)号：EP3015184A1
公开(公告)日：2016-05-04
申请号：EP14880374.5
申请日：2014-05-14
申请人： Nisshin Steel Co., Ltd.
发明人： NAKAMURA, Naofumi , YAMAMOTO, Yudai , KUROBE, Jun
IPC分类号： B21D22/20
CPC分类号： B21C1/22 , B21D22/20 , B21D24/06
摘要： A formed material is manufactured by performing forming including at least one drawing-out process and at least one drawing process performed after the drawing-out process. A punch 31 used in the drawing-out process is formed to be wider on a rear end side than on a tip end side. By pushing a raw material metal plate into a pushing hole 30a together with the punch 31, ironing is performed on a region of the raw material metal plate corresponding to a flange portion.
摘要翻译：通过执行包括至少一个抽出处理和在抽出处理之后执行的至少一个抽取处理的成形来制造成形材料。在拉出工序中使用的冲头31形成为在后端侧比前端侧宽。通过将原料金属板与冲头31一起推入推动孔30a中，在与凸缘部对应的原料金属板的区域上进行熨烫。

7. 发明授权

EP2974808B1 METHOD FOR MANUFACTURING MOLDED MATERIAL 有权
标题翻译：制造模制材料的方法
公开(公告)号：EP2974808B1
公开(公告)日：2017-09-06
申请号：EP14880373.7
申请日：2014-11-07
申请人： Nisshin Steel Co., Ltd.
发明人： NAKAMURA, Naofumi , YAMAMOTO, Yudai , NISHIO, Katsuhide
IPC分类号： B21D22/28 , B21D22/30
CPC分类号： B21D24/00 , B21D22/26 , B21D22/28 , B21D22/30

8. 发明公开

EP3156145A1 MOLDED MATERIAL PRODUCTION METHOD AND MOLDED MATERIAL 有权转让
标题翻译： FORMMATERIALHERSTELLUNGSVERFAHREN UND FORMMATERIAL
公开(公告)号：EP3156145A1
公开(公告)日：2017-04-19
申请号：EP15805752.1
申请日：2015-02-06
申请人： Nisshin Steel Co., Ltd.
发明人： NAKAMURA, Naofumi , YAMAMOTO, Yudai , NISHIO, Katsuhide
IPC分类号： B21D22/28
CPC分类号： B21D22/28 , B21D22/21 , B21D22/30
摘要： The invention provides a formed material manufacturing method by which unnecessary thickening of a flange can be avoided, a formed material can be reduced in weight, a base metal sheet can be reduced in size, uniformity of flange thickness can be improved, and a highly accurate flatness can be obtained, and the invention also to provide a formed material. The formed material manufacturing method allows a formed material to be manufactured by forming processes that include at least one drawing-out process, at least one drawing process performed after the drawing-out process, and at least one coining process performed after the drawing process. The width of the rear end side of a punch 31 used in the drawing-out process is set to be wider than the width of the tip end side thereof. An ironing process is performed on a region corresponding to the flange of the base metal sheet by pushing the base metal sheet together with the punch 31 into a pushing hole 30a.
摘要翻译：本发明提供一种成形材料制造方法，通过该方法可以避免凸缘的不必要的增厚，可以减少成形材料的重量，可以减小贱金属片的尺寸，提高凸缘厚度的均匀性和高精度可以获得平坦度，并且本发明还提供成形材料。成形材料制造方法允许通过形成工艺来制造成形材料，所述方法包括至少一个拉出工艺，在拉出工艺之后执行的至少一个拉丝工艺以及在拉伸工艺之后执行的至少一个压印加工工艺。在拉出处理中使用的冲头31的后端侧的宽度被设定为比其前端侧的宽度宽。通过将基板金属片与冲头31一起推入到推动孔30a中，对与基板金属板的凸缘相对应的区域进行熨烫处理。

9. 发明公开

EP3085469A1 METHOD FOR MANUFACTURING MOLDED MATERIAL, AND SURFACE-TREATED METAL PLATE USED THEREIN 有权转让
标题翻译： PROCESS为了生产成形材料及其使用过的表面处理金属板
公开(公告)号：EP3085469A1
公开(公告)日：2016-10-26
申请号：EP14871623.6
申请日：2014-10-23
申请人： Nisshin Steel Co., Ltd.
发明人： NAKAMURA, Naofumi , YAMAMOTO, Yudai , KUROBE, Jun
IPC分类号： B21D22/28
CPC分类号： B21D22/286 , B21D22/28 , B21D51/10 , C23C2/06
摘要： A formed material manufacturing method according to present invention includes the steps of forming a convex formed portion by performing at least one forming process on a surface treated metal plate, and performing ironing on the formed portion using an ironing mold after forming the formed portion. The ironing mold includes a punch that is inserted into the formed portion, and a die having a pushing hole into which the formed portion is pushed together with the punch. An inner peripheral surface of the pushing hole extends non-parallel to an outer peripheral surface of the punch, and the inner peripheral surface is provided with a clearance that corresponds to an uneven plate thickness distribution, in the pushing direction, of the formed portion prior to the ironing relative to the outer peripheral surface to ensure that an amount of ironing applied to the formed portion remains constant in the pushing direction.
摘要翻译：所形成的材料的制造方法雅丁到本发明包括通过在表面处理过的金属板执行至少一个成形过程中，以及执行熨烫使用在形成所形成的部分之后熨烫模具所形成的部分的凸状形成的部分的步骤。熨烫模具包括冲头没有被插入到所形成的部分，和一个在具有一推入孔所形成的部分被与冲头一起推。推压孔的内周面不平行于在冲头的外周面延伸，并做的内周表面上设置有一个间隙对应于在所述压入方向不均匀的板厚分布，所形成的部分的前相对于外周面，以确保没有上的熨烫施加到成形部分量熨烫保持在推压方向上恒定。

10. 发明公开

EP3520919A1 METHOD OF MANUFACTURING MOLDED MATERIAL, AND SAID MOLDED MATERIAL 有权转让
公开(公告)号：EP3520919A1
公开(公告)日：2019-08-07
申请号：EP17858021.3
申请日：2017-06-20
申请人： Nisshin Steel Co., Ltd.
发明人： NAKAMURA, Naofumi , YAMAMOTO, Yudai
IPC分类号： B21D22/28
摘要： The present invention provides a method for manufacturing a molded member by carrying out a multi-stage drawing process and at least one finishing ironing process on a base metal sheet, the molded member comprising: a tubular body; and a flange formed at an end portion of the body, wherein the multi-stage drawing process comprises: a preliminary drawing process for forming a preliminary body having a body element from the base metal sheet; and a plurality of compression drawing processes performed after the preliminary drawing process, the compression drawing processes drawing the body element while applying compressive force along a depth direction of the body element to a circumferential wall of the body element; and wherein the at least one finishing ironing process is carried out such that a mold clearance of an upper portion of the body element is narrower than a mold clearance of a lower portion of the body element.

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