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公开(公告)号：US08776570B2
公开(公告)日：2014-07-15
申请号：US13054699
申请日：2009-07-17
申请人： Kazuhisa Maeda , Yoshiyuki Fukuyama , Tatsuya Asai
发明人： Kazuhisa Maeda , Yoshiyuki Fukuyama , Tatsuya Asai
摘要： A workpiece bending method of forming a final formed article that has two surfaces on opposite sides of an inclined area, in which an inclined area is made up of a first bend portion, a second bend portion, and a flat surface portion, includes: cantilevering an end portion of a workpiece by a stationary die and a holding member; and curving an area in the workpiece that corresponds to the flat surface portion by moving a movable die to the stationary die so that the movable die presses a free-end side of the workpiece, and then forming the first bend portion and the second bend portion, and unbending the area in the workpiece that corresponds to the flat surface portion of the inclined area, by causing the movable die to press the workpiece to the stationary die.
摘要翻译： 一种在倾斜区域由第一弯曲部分，第二弯曲部分和平坦表面部分构成的倾斜区域的相对侧上形成具有两个表面的最终成形制品的工件弯曲方法包括：悬臂 通过固定模具和保持构件的工件的端部; 以及通过将可动模移动到固定模上来弯曲对应于平面部的工件区域，使得可动模挤压工件的自由端侧，然后形成第一弯曲部和第二弯曲部 通过使可动模将工件按压到固定模上，使与工件相对应的倾斜区域的平面部分的区域不弯曲。
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公开(公告)号：US20110120204A1
公开(公告)日：2011-05-26
申请号：US13054699
申请日：2009-07-17
申请人： Kazuhisa Maeda , Yoshiyuki Fukuyama , Tatsuya Asai
发明人： Kazuhisa Maeda , Yoshiyuki Fukuyama , Tatsuya Asai
IPC分类号： B21D5/04
摘要： A workpiece bending method of forming a final formed article that has two surfaces on opposite sides of an inclined area, in which an inclined area is made up of a first bend portion, a second bend portion, and a flat surface portion, includes: the workpiece holding step of cantilevering an end portion of the workpiece by a stationary die and a holding member; and the forming step of curving an area in the workpiece that corresponds to the flat surface portion by moving a movable die to the stationary die so that the movable die presses a free-end side of the workpiece, and then forming the first bend portion and the second bend portion, and unbending the area in the workpiece that corresponds to the flat surface portion of the inclined area, by causing the moving die to press the workpiece to the stationary die.
摘要翻译： 一种在倾斜区域由第一弯曲部分，第二弯曲部分和平坦表面部分构成的倾斜区域的相对侧上形成具有两个表面的最终成形制品的工件弯曲方法包括： 通过固定模具和保持构件将工件的端部悬臂的工件保持步骤; 以及通过将可动模移动到固定模上而弯曲对应于平面部的工件区域的形成步骤，使得可动模挤压工件的自由端侧，然后形成第一弯曲部和 第二弯曲部分，并且通过使移动的模具将工件压向固定模具，使对应于倾斜区域的平坦表面部分的工件中的区域不弯曲。
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公开(公告)号：US09724745B2
公开(公告)日：2017-08-08
申请号：US13392418
申请日：2009-12-24
摘要： A press forming process forms a blank, which is the material to be pressed, into a product having a predetermined shape including a continuous hat-shaped section in the longitudinal direction and a curved portion protruding toward the top surface side in the longitudinal direction. In the press forming process, an intermediate product which has an excess thickness portion formed at a part of the curved portion of the product and protruding higher than the top surface of the product is formed while constraining the portion of the intermediate product other than the excess thickness portion until the excess thickness portion projects in a direction opposite to the protrusion direction thereof, whereby the intermediate product is formed into a predetermined shape.
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公开(公告)号：US20120204619A1
公开(公告)日：2012-08-16
申请号：US13392418
申请日：2009-12-24
IPC分类号： B21D31/00
摘要： Provided is a press forming method in which the dimensional accuracy is improved and the cost for mass production can be reduced through the reduction of the number of the die corrections, etc. A press forming process forms a blank, which is the material to be pressed, into a product having a predetermined shape including a continuous hat-shaped section in the longitudinal direction and a curved portion protruding toward the top surface side in the longitudinal direction. In the press forming process, an intermediate product which has an excess thickness portion formed at a part of the curved portion of the product and protruding higher than the top surface of the product is formed while constraining the portion of the intermediate product other than the excess thickness portion until the excess thickness portion projects in a direction opposite to the protrusion direction thereof, whereby the intermediate product is formed into a predetermined shape.
摘要翻译： 提供了一种冲压成型方法，其中尺寸精度提高，并且通过减少模具校正次数等能够降低批量生产的成本。压制成型工艺形成坯料，其为被压制材料 成为具有长度方向连续的帽状部的预定形状的产品和在长度方向上向上表面侧突出的弯曲部。 在冲压成形过程中，形成有在产品的弯曲部分的一部分上形成并突出高于产品顶部表面的多余厚度部分的中间产品，同时限制除过量之外的中间产品的部分 厚度部分直到多余厚度部分沿与其突出方向相反的方向突出，从而将中间产品形成为预定形状。
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