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公开(公告)号：EP1925381A1
公开(公告)日：2008-05-28
申请号：EP06797694.4
申请日：2006-09-08
申请人： Showa Denko K.K.
发明人： OTAKI, Atsushi
摘要： An upsetting method capable of manufacturing an upsetting manufactured product having a bent expanded portion under a lighter load is provided. A bar-shaped raw material 1 is loaded to the receiving die 11 in an axial movement prevented state, and the expansion scheduled portion 2 of the raw material 1 is arranged in the insertion hole 21 for holding the expansion scheduled portion 2 of the raw material 1 in a buckling prevented state. Subsequently, the guide 20 is moved in a direction opposite to a moving direction of the punch 30 while pressurizing the expansion scheduled portion 2 of the raw material 1 with the punch 30 in an axial direction, to thereby radially outwardly expand the expansion scheduled portion 2 of the raw material 1 exposed between a tip end portion of the guide 20 and the receiving die 11. In this upsetting method, the expansion scheduled portion 2 is bent while expanding the expansion scheduled portion 2 of the raw material 1.
摘要翻译： 提供一种能够在较轻负载下制造具有弯曲扩张部分的镦锻制造产品的镦锻方法。 棒状原料1以轴向移动防止状态装载到接收用模具11，原料1的膨胀调度部2配置在用于保持原料的膨胀调度部2的插入孔21中 1在弯曲防止状态。 随后，引导件20在与冲头30的移动方向相反的方向上移动，同时用冲头30沿轴向对原料1的膨胀调度部分2加压，从而径向向外扩张膨胀调度部分2 在引导件20的前端部与接收用模具11之间露出的原料1的突出。在该镦锻方法中，使膨胀调度部2在扩大原料1的膨胀调度部2的同时弯曲。
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公开(公告)号：EP1844875B9
公开(公告)日：2011-09-07
申请号：EP06712616.9
申请日：2006-01-30
申请人： Showa Denko K.K.
发明人： OTAKI, Atsushi
摘要： A method and a device for upsetting a cylindrical material capable of securely swelling the intended part of the cylindrical material to the inside or outside so that its wall thickness can be increased. A core (40) is disposed in the hollow parts (2a) and (3a) of the intended part (2) and the unintended part (3) of the cylindrical material (1). The unintended part (3) of the material (1) is disposed in the arresting hole (11) of an arresting die (10). The intended part (2) of the material (1) is disposed in a molding recessed part (12). The intended part (2) of the material (1) is disposed in the insertion hole (21) of a guide (20). Next, while the intended part (2) of the material (1) is pressurized in the axial direction with a punch (30), the guide (20) is moved in an opposite direction (25) to the moving direction (35) of the punch to swell the work predicted part (2) of the material (1) to the outside so that its wall thickness is increased in the molding recessed part (12).
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公开(公告)号：EP1964624A1
公开(公告)日：2008-09-03
申请号：EP06832569.5
申请日：2006-11-14
申请人： Showa Denko K.K.
发明人： OTAKI, Atsushi
摘要： An upsetting method capable of reducing a molding pressure is provided. The upsetting method uses a receiving die 11 and a guide 20 having an insertion hole 23 for inserting and holding a diameter expansion scheduled portion 2 of the raw material 1 in a buckling prevented state and in an axially slidable manner, the insertion hole being penetrated from the basal end to the tip end of the guide 20. The method includes a step of receiving the diameter expansion scheduled portion 2 of the raw material 1 by the receiving portion 13 of the receiving die 11 and disposing the diameter expansion scheduled portion 2 of the raw material 1 in the insertion hole 23 of the guide 20, and a step of expanding a diameter of the diameter expansion scheduled portion 2 of the raw material 1 exposed between the tip end face 21a of the guide 20 and the receiving portion 13 of the receiving die 11 by moving the guide 20 in a direction opposite to a pressurizing direction of the diameter expansion scheduled portion 2 of the raw material 1 while pressurizing the diameter expansionscheduledportion2 of the rawmaterial 1 withapressurizing means 30 in an axial direction, after the step of disposing the diameter expansion scheduled portion 2 of the raw material 1. At the diameter expanding step, the diameter expansion is performed in a state in which a portion 2a of the diameter expansion scheduled portion 2 of the raw material 1 corresponding to a tip end portion 21 of the guide 20 is locally heated by the heating means 40.
摘要翻译： 提供了一种能够降低成型压力的镦锻方法。 镦锻方法使用具有插入孔23的接收模11和导向件20，插入孔23用于插入并保持原材料1的扩径预定部2处于防止弯曲状态并且可轴向滑动，插入孔从 该方法包括通过接收模11的接收部分13接收原材料1的扩径预定部分2并将接收模具11的扩径预定部分2布置在导向部分20的扩径预定部分2上的步骤。 将导向件20的插入孔23中的原材料1以及在导向件20的前端面21a与第一导向件20的容纳部13之间露出的原料1的扩径预定部2的直径扩大的步骤 通过沿与原材料1的扩径预定部分2的加压方向相反的方向移动导向件20，同时加压扩径部分11 在配置原材料1的扩径预定部2的工序之后，在轴向的原材料1的预定部分2的预定部位2进行扩径。在扩径工序中， 与引导件20的前端部21对应的原料1的扩径预定部2被加热单元40局部加热。
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公开(公告)号：EP1648633B1
公开(公告)日：2011-09-21
申请号：EP04748273.2
申请日：2004-07-30
申请人： Showa Denko K.K.
发明人： OTAKI, Atsushi , HAMANO, Hidemitsu
摘要： A forging apparatus 1A includes a swaging apparatus 2 equipped with a fixing die 10, a guide 20 having an insertion passage 22 for inserting and holding a bar-shaped raw material 5 in a buckling preventing state, and a punch 30. The raw material 5 is fixed to the fixing die 10 with the one end portion of the raw material protruded. The one end portion of the raw material 5 is inserted into the insertion passage 22 of the guide 20. Thereafter, while pressing the raw material 5 with the punch 30 in the axial direction, in a state in which an entire peripheral surface of the exposed portion 8 of the raw material 5 exposed between the guide 20 and the fixing die 10 is not restrained, the guide 20 is moved in a direction opposite to the moving direction of the punch 30 so that a length of the exposed portion 8 of the raw material 5 becomes a budding limit length or less at a cross-sectional area of the exposed portion 8 of the raw material 5. Thus, the one end portion of the raw material 5 is subjected to swaging processing.
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公开(公告)号：EP1844875B1
公开(公告)日：2011-04-20
申请号：EP06712616.9
申请日：2006-01-30
申请人： Showa Denko K.K.
发明人： OTAKI, Atsushi
摘要： A method and a device for upsetting a cylindrical material capable of securely swelling the intended part of the cylindrical material to the inside or outside so that its wall thickness can be increased. A core (40) is disposed in the hollow parts (2a) and (3a) of the intended part (2) and the unintended part (3) of the cylindrical material (1). The unintended part (3) of the material (1) is disposed in the arresting hole (11) of an arresting die (10). The intended part (2) of the material (1) is disposed in a molding recessed part (12). The intended part (2) of the material (1) is disposed in the insertion hole (21) of a guide (20). Next, while the intended part (2) of the material (1) is pressurized in the axial direction with a punch (30), the guide (20) is moved in an opposite direction (25) to the moving direction (35) of the punch to swell the work predicted part (2) of the material (1) to the outside so that its wall thickness is increased in the molding recessed part (12).
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