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1. 发明授权

EP4011519B1 UMFORMWERKZEUG ZUR TIEFZIEHUMFORMUNG EINER POUCHFOLIE IN EINE BEUTELHÄLFTE EINES POUCHBEUTELS 有权
公开(公告)号：EP4011519B1
公开(公告)日：2024-10-30
申请号：EP21212270.9
申请日：2021-12-03
IPC分类号： B21D26/14
CPC分类号： B21D26/14 , B21D22/00

2. 发明公开

EP4446026A1 PRESS-FORMING ANALYSIS METHOD, PRESS-FORMING ANALYSIS DEVICE, AND PRESS-FORMING ANALYSIS PROGRAM 审中-实审
公开(公告)号：EP4446026A1
公开(公告)日：2024-10-16
申请号：EP22920434.2
申请日：2022-11-08
申请人： JFE Steel Corporation
发明人： OGAWA, Takeshi , SUMIKAWA, Satoshi , SHINMIYA, Toyohisa , YAMASAKI, Yuji
IPC分类号： B21D22/00 , B21D22/20 , G01B11/24 , G06F30/10 , G06F30/23
CPC分类号： G01B11/24 , G06F30/10 , G06F30/23 , B21D22/20 , B21D22/00
摘要： A press forming analysis method according to the present invention includes: a shape acquisition step of a standard press-formed part; a generation step of a waveform blank model of generating a waveform blank model 7; a shape acquisition step of a press-formed part using the waveform blank model of acquiring a shape 9 of a waveform blank press-formed part; a first deviation amount acquisition step of obtaining a deviation amount of shape change between the shape 5 of the standard press-formed part and the shape 9 of the waveform blank press-formed part; a generation step of a cycle deviation waveform blank model of generating a cycle deviation waveform blank model 11; a shape acquisition step of a press-formed part using the cycle deviation waveform blank model of acquiring a shape 13 of a cycle deviation waveform blank press-formed part; a second deviation amount acquisition step of obtaining a deviation amount of shape change between the shape 5 of the standard press-formed part and the shape 13 of the cycle deviation waveform blank press-formed part; and a step to identify portions requiring countermeasures of identifying a portion requiring countermeasures.

3. 发明公开

EP4420805A1 METHOD FOR ASSESSING FRACTURE IN PRESS-FORMED PART, AND METHOD FOR DETERMINING FRACTURE COUNTERMEASURE IN PRESS-FORMED PART 审中-实审
公开(公告)号：EP4420805A1
公开(公告)日：2024-08-28
申请号：EP22910452.6
申请日：2022-08-18
申请人： JFE Steel Corporation
发明人： YAMAGUCHI, Naoki , SHIOZAKI, Tsuyoshi
IPC分类号： B21D22/00
CPC分类号： B21D22/00
摘要： A press formed part fracture determination method according to the present invention is a method as a basis for deciding a countermeasure for a fracture of a press formed part 21 in which a fracture has occurred. The method includes: performing press forming of a test piece 31 so as to reproduce a stress state in a press forming process of a bent portion 23, which is a fracture occurrence portion in the press formed part 21, and determining occurrence/non-occurrence of a micro crack in a stress state reproduction portion 33 of the test piece 31 (P1); and determining, when it is determined that the micro crack has occurred in the stress state reproduction portion 33, that there is occurrence of a fracture in the press forming process, and determining, when it is determined that no micro crack has occurred in the stress state reproduction portion 33, that there is a fracture in springback after the press forming (P3).

4. 发明公开

EP4378604A1 METHOD FOR PREDICTING TENSION-COMPRESSION REVERSE LOADING BEHAVIOR OF METAL MATERIAL 审中-实审
公开(公告)号：EP4378604A1
公开(公告)日：2024-06-05
申请号：EP22863958.9
申请日：2022-05-30
申请人： JFE Steel Corporation
发明人： AGEBA, Ryo , SUMIKAWA, Satoshi
IPC分类号： B21D22/00 , G01N3/00 , G01N3/08
CPC分类号： G01N3/00 , G01N3/08 , B21D22/00
摘要： In a method of predicting a tension-compression reverse loading behavior of a metal sheet according to the present invention, a tension-compression reverse loading behavior is predicted by determining a model constant of a material model. The method includes a step of acquiring a value of the model constant of a prediction metal sheet by inputting metal materials test data, including a factor related to a uniaxial tension behavior, of the prediction metal sheet to a learned model that has been caused to perform machine learning using, as an input variable, metal materials test data and using, as an output variable, a value of the model constant, which has been determined based on a tension-compression test of the metal sheet, in which the factor related to a uniaxial tension behavior includes point sequence data obtained by discretizing a stress-strain curve of uniaxial tensile test obtained from a uniaxial tensile test.

5. 发明公开

EP3382581A1 METHOD FOR DESIGNING A DIE SURFACE 有权
公开(公告)号：EP3382581A1
公开(公告)日：2018-10-03
申请号：EP18162136.8
申请日：2018-03-15
申请人： Hexagon Technology Center GmbH
发明人： WILCOX, William , PEELING, Derek
IPC分类号： G06F17/50 , B21D22/00
CPC分类号： G06F17/5009 , B21D22/00 , B21D37/20 , G06F17/5018 , G06F17/5086 , G06F2217/12 , G06F2217/16 , G06F2217/42 , G06N5/04 , Y02P90/265
摘要： The invention relates to a method for designing a die surface of a die intended for forming a workpiece into a target formed part, comprising generating a workpiece simulation-model corresponding to the workpiece, generating a target simulation-model corresponding to a target formed part, determining an initial die surface, which an initial numerical simulation predicts as forming the workpiece simulation-model into the target simulation-model, determining residual stresses resulting from forming the workpiece simulation-model into the target simulation-model, with a die having the initial die surface, forming the workpiece into an actual formed part, by measuring the actual formed part, generating a numerical representation of the actual formed part, based on the numerical representation of the actual formed part, generating an actual simulation-model, based on the residual stresses, matching the actual simulation-model and the target simulation-model, based on deviations between the matched target simulation-model and actual simulation-model, modifying the initial numerical simulation to provide a modified numerical simulation, and determining a corrected die surface, which the modified numerical simulation predicts as forming the workpiece simulation-model into the target simulation-model.

6. 发明公开

EP3251769A1 METHOD FOR ESTIMATING SURFACE SHAPE DEFECT GENERATING REGIONS, METHOD FOR ESTIMATING SURFACE SHAPE DEFECT SOURCE REGIONS, SURFACE SHAPE DEFECT GENERATING REGION ESTIMATING DEVICE, SHAPE DEFECT SOURCE REGION ESTIMATING DEVICE, PROGRAM AND RECORDING MEDIA 有权转让
标题翻译：估算表面形状缺陷产生区域的方法，估计表面形状缺陷源区域的方法，表面形状缺陷产生区域估计装置，形状缺陷源区域估计装置，程序和记录介质
公开(公告)号：EP3251769A1
公开(公告)日：2017-12-06
申请号：EP16743241.8
申请日：2016-01-22
申请人： Nippon Steel & Sumitomo Metal Corporation
发明人： KUWAYAMA Takuya , ARIGA Takashi
IPC分类号： B21D22/00 , G06F17/50
CPC分类号： G06F17/5018 , B21D22/00 , G06F17/50
摘要： There is provided a surface shape defect generating region estimating method for estimating a generating region of a surface shape defect of a deformation-processed product obtained by performing deformation processing with respect to a workpiece, the method including: a first stress distribution obtaining process of obtaining first stress distribution σ (T1) ; a second stress distribution obtaining process of obtaining a second stress distribution σ (T2) ; a comparative stress distribution obtaining process of obtaining comparative stress distribution σ (T1, T2) ; a division comparative stress distribution obtaining process of obtaining division comparative stress distribution σ DIV(T1, T2) ; and a surface shape defect generating region estimating process of estimating whether or not each of the divided regions D K is a generating region of the surface shape defect.
摘要翻译：提供一种表面形状不良产生区域估计方法，用于估计通过对工件执行变形处理而获得的变形加工产品的表面形状缺陷的产生区域，所述方法包括：第一应力分布获得过程，第一应力分布σ（T1）; 获得第二应力分布σ（T2）的第二应力分布获得过程; 获得比较应力分布σ（T1，T2）的比较应力分布获得过程; 求得分割比较应力分布σDIV（T1，T2）的分割比较应力分布取得处理; 以及表面形状缺陷产生区域估计处理，估计每个分割区域DK是否是表面形状缺陷的产生区域。

7. 发明授权

EP2839896B1 METHOD FOR PREPARING FORMING LIMIT DIAGRAM IN PRESS FORMING, METHOD FOR PREDICTING CRACK AND METHOD OF PRODUCING PRESS PARTS 有权
标题翻译：压制成形极限图的制备方法，预测裂纹的方法和压制部件的制造方法
公开(公告)号：EP2839896B1
公开(公告)日：2017-11-22
申请号：EP12874605.4
申请日：2012-04-16
申请人： JFE Steel Corporation
发明人： FUJII, Yusuke , SHINMIYA, Toyohisa , YAMASAKI, Yuji , HIGAI, Kazuhiko
IPC分类号： B21D22/00 , B21D22/20 , G01N3/08
CPC分类号： G01N3/06 , B21D22/00 , G01N3/08 , G01N3/28 , G01N2203/0064 , G01N2203/0066 , G06F17/5018 , G06F17/5086 , G06F2217/42
摘要： A forming limit curve is obtained by subjecting a surface of a metal plate to be press-formed to marking at a distance between reference points of 0.5-1.0 mm, bulging the metal plate with a punch having a top minimum curvature radius of 3-10 mm and measuring principal maximum strain and principal minimum strain at a time of generating cracks on the surface of the metal plate at a top portion of the punch from a change of the marking, from which a forming limit diagram is prepared and a crack generation is predicted in the press forming based on the forming limit diagram, and then the press forming is conducted under conditions not causing crack generation.

8. 发明公开

EP2630058A4 METHOD AND APPARATUS FOR MAKING AEROSOL CANS FOR METERED DOSE INHALER 审中-公开
标题翻译：用于为测量剂量的吸入器制备气溶胶的方法和装置
公开(公告)号：EP2630058A4
公开(公告)日：2017-08-09
申请号：EP11835062
申请日：2011-10-19
申请人： 3M INNOVATIVE PROPERTIES CO
发明人： WILSON PAUL A , BOLTON MARK , ROBINSON DEREK A , RIBORDY JAMES E
IPC分类号： B65D83/14
CPC分类号： B21D22/00 , B21D51/2615 , B21D51/2692 , B23D19/04 , B23D31/001 , B65D83/38
摘要： A method and apparatus for forming aerosol cans for metered dose inhalers.
摘要翻译：用于定量吸入器的气雾罐的方法和装置。

9. 发明公开

EP3165298A1 STRETCH-FLANGE CRACK PREDICTION METHOD, STRETCH-FLANGE CRACK PREDICTION DEVICE, COMPUTER PROGRAM, AND RECORDING MEDIUM 审中-公开
标题翻译：用于预测DEHNUNGSFLANSCHRISSEN，装置于预测DEHNUNGSFLANSCHRISSEN，计算机程序和记录介质
公开(公告)号：EP3165298A1
公开(公告)日：2017-05-10
申请号：EP15815590.3
申请日：2015-07-02
申请人： Nippon Steel & Sumitomo Metal Corporation
发明人： SHIRAKAMI, Satoshi , YOSHIDA, Hiroshi , MIYAGI, Takashi , NITTA, Jun , YOSHIDA, Tohru
IPC分类号： B21D22/00 , G06F17/50
CPC分类号： G06F17/5018 , B21D22/00 , B21D22/201 , G06F2217/16 , G06F2217/42 , Y02T10/82
摘要： A stretch flange crack prediction method of predicting initiation of stretch flange cracks that occurs in a flange end section during stretch flange forming of a deformable sheet, includes: a measurement value acquisition process of acquiring, for each of a plurality of sheet-shaped test pieces, a fracture strain measurement value, a normal strain gradient measurement value, and a circumferential strain gradient measurement value; a CAE analysis process of acquiring a maximum major strain maximum element having a highest maximum major strain, a normal strain gradient of the maximum major strain maximum element, and a circumferential strain gradient of the maximum major strain maximum element; a fracture determination threshold acquisition process of acquiring a fracture determination threshold by converting the fracture strain measurement value; and a prediction process of predicting that stretch flange cracks will be initiated, when the maximum major strain is equal to or higher than the fracture determination threshold.
摘要翻译：预测拉伸凸缘裂纹的萌生的拉伸凸缘裂纹的预测方法那样拉伸凸缘期间的可变形片材的形成在一个法兰端部的发生，包括：获取的测量值获取处理中，对于每个片状试验片的多个，断裂应变测定值，一个正常的应变梯度的测量值，和一个周向应变梯度测量值; 获取具有最高的最大主应变，最大主应变的最大元件的正常应变梯度，最大主应变的最大元件的周向应变梯度的最大主应变的最大元件的CAE分析处理; 通过将断裂应变测量值取得的断裂判定阈值的断裂判定阈值获得过程; 和的预测没有拉伸凸缘裂纹的预测处理将被启动，当最大主应变比断裂判定阈值或更高。

10. 发明公开

EP3113893A1 VERFAHREN ZUR INDIVIDUALISIERTEN ANPASSUNG DER FORM VON BAUTEILEN 审中-公开
标题翻译： VERFAHREN ZUR个性化的ON UNG ER ON V ON ON ON ON EN EN EN EN EN EN EN EN EN EN
公开(公告)号：EP3113893A1
公开(公告)日：2017-01-11
申请号：EP15708192.8
申请日：2015-03-04
申请人： ThyssenKrupp Steel Europe AG
发明人： COTT, Andreas , HILFRICH, Erik , KEVENHÖRSTER, Joseph Georg , MERTENS, Oliver , PATBERG, Lothar , RAUHUT, Marcus , STEGMEYER, Ralf
IPC分类号： B21D35/00 , B62D27/00 , B21D7/00 , B21D9/01 , B21D22/00 , B21D26/02 , B21D28/00 , B21D31/00 , B23K1/00
CPC分类号： B21D35/002 , B21D7/00 , B21D9/01 , B21D22/00 , B21D26/02 , B21D28/00 , B21D31/005
摘要： A method is presented and described for individualized adaptation of the shape of components (7) comprising the following steps: a) provision of a raw material (1) for producing the components (7), b) selection of at least one unifying production method, c) production of the components (7) with a geometrically-identical base shape using the unifying production method, d) selection of at least one individualizing production method, and e) adaptation of the shape of the components (7) to at least two different end shapes using the individualizing production method, wherein the unifying production method differs from the individualizing production method, and wherein the end shape of each component (7) differs from its base shape.
摘要翻译：用于个体化适应组件形状的方法包括提供用于制造组件的基本材料。接下来，选择至少一个统一的生产方法。然后通过统一的制造方法以几何相同的基底形状制造组件。然后选择至少一种个性化生产方法。然后通过与统一生产方法不同的个性化生产方法，将部件的形状适应于至少两种不同的最终形状。每个组件的最终形状与其基本形状不同。

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