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公开(公告)号：US5974847A
公开(公告)日：1999-11-02
申请号：US89634
申请日：1998-06-02
IPC分类号： B21D26/055 , B21D26/02
CPC分类号： B21D26/055 , Y10T29/49805
摘要： A method is disclosed for stretching sheet blanks, especially superplastic sheets, by differential gas pressure into conformity with a female die surface without encountering excessive thinning or tearing of the sheet. The warmed SPF sheet is draped over a preformed surface to draw more of the sheet material into the die cavity before the edges of the sheet are fixedly clamped whereby the additional formable material is used in forming the product, thereby reducing thinning and tears.
摘要翻译： 公开了一种用于通过差分气体压力将片材坯料，特别是超塑性片材拉伸成与母模表面一致的方法，而不会遇到片材的过度变薄或撕裂。 将预热的SPF片材覆盖在预成型的表面上，以便在片材的边缘被固定夹紧之前将更多的片材材料吸入模腔中，由此在形成产品时使用另外的可成形材料，从而减少变薄和撕裂。
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公开(公告)号：US6038911A
公开(公告)日：2000-03-21
申请号：US253365
申请日：1999-02-22
摘要： An anti-intrusion barrier comprising a corrugated metal sheet and at least one mounting flange integral with the sheet. The flange comprises extensions of the corrugations which have been collapsed inwardly upon themselves so as to provide a plurality of plateaus each defined by a pair of pleats formed by collapsed walls of the corrugations.
摘要翻译： 一种抗侵入屏障，包括波纹状金属片和与该片一体的至少一个安装凸缘。 凸缘包括已经在其自身上向内折叠的波纹的延伸部分，以便提供多个平台，每个平台由由波纹的折叠壁形成的一对褶皱限定。
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公开(公告)号：US5924760A
公开(公告)日：1999-07-20
申请号：US757599
申请日：1996-11-29
摘要： An anti-intrusion barrier comprising a corrugated metal sheet and at least one mounting flange integral with the sheet. The flange comprises extensions of the corrugations which have been collapsed inwardly upon themselves so as to provide a plurality of plateaus each defined by a pair of pleats formed by collapsed walls of the corrugations.
摘要翻译： 一种抗侵入屏障，包括波纹状金属片和与该片一体的至少一个安装凸缘。 凸缘包括已经在其自身上向内折叠的波纹的延伸部分，以便提供多个平台，每个平台由由波纹的折叠壁形成的一对褶皱限定。
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公开(公告)号：US07159427B2
公开(公告)日：2007-01-09
申请号：US10788931
申请日：2004-02-27
IPC分类号： B21D26/02
CPC分类号： B21D26/029 , B21D26/055 , B21D37/16
摘要： Apparatus for hot gas blow-forming including opposed heated and insulated tool containers, each including a tool heater plate that is adapted for attachment to a platen of a press with one or more load bearing spacers interposed between the tool heater plate and the platen. Each tool container also includes an insulation enclosure having a base portion that is interposed between the tool heater plate and the platen and further having perimeter wall portion that surrounds the tool heater plate. A perimeter seal is preferably attached to at least one of the heated and insulated tool containers and is adapted for sealing engagement with the other of the heated and insulated tool containers.
摘要翻译： 用于热气体吹塑的设备，包括相对的加热和绝缘工具容器，每个工具容器包括工具加热器板，该工具加热器板适于附接到压力机的压板上，其中一个或多个负载垫片夹在工具加热器板和压板之间。 每个工具容器还包括绝缘外壳，其具有介于工具加热器板和压板之间的基部，并且还具有围绕工具加热器板的周边壁部分。 周边密封件优选地附接到加热和绝缘的工具容器中的至少一个，并且适于与另一个加热和绝缘的工具容器密封接合。
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公开(公告)号：US06880377B2
公开(公告)日：2005-04-19
申请号：US10274493
申请日：2002-10-17
申请人： Chongmin Kim , Gary A. Kruger , Mark G. Konopnicki , John Norman Johnson , James Gregory Schroth , Michelle R. Goff
发明人： Chongmin Kim , Gary A. Kruger , Mark G. Konopnicki , John Norman Johnson , James Gregory Schroth , Michelle R. Goff
CPC分类号： B21D26/021 , B21D26/031 , B21D26/055 , B21D37/16
摘要： A method is disclosed for forming sheet metal articles, such as automotive body panels, having significant curvatures in front-to-back and side-to-side directions. Opposing, complementary, preforming and final shape forming tools are used in a single press. A sheet of superplastically or quick plastically formable sheet metal alloy, heated to a forming temperature, is first stretched against the preform tool using pressurized gas to form a preform that has experienced most of the metal stretching required for the final part shape. The preform is removed from the preform tool and formed against the opposing tool with pressurized gas to obtain the final sheet metal part shape.
摘要翻译： 公开了一种用于形成诸如汽车车身板的金属板制品的方法，其具有在前后方向和左右方向上具有显着曲率的方法。 相反，互补，预成型和最终形状成型工具用于单一压机中。 首先使用加压气体将加热到成形温度的超塑性或快速塑性成形的金属板合金片材拉伸成预成型工具，以形成已经经受了最终部件形状所需的大部分金属拉伸的预制件。 将预成型件从预成型工具中取出并用加压气体抵靠相对的工具形成，以获得最终的钣金零件形状。
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公开(公告)号：US6047583A
公开(公告)日：2000-04-11
申请号：US307837
申请日：1999-05-10
IPC分类号： F16J15/08 , B21D24/04 , B21D26/055 , B21D26/02 , B21D22/22
CPC分类号： B21D26/055
摘要： A cusp-shaped binder surface seal bead for a superplastic forming die or tool engages a sheet workpiece, especially an aluminum sheet, in a gas tight seal but displaces so little workpiece material that the formed sheet does not bond to the tool and is easily removed at the completion of the forming operation. The cusp shape may be truncated and the seal shape may incorporate adjacent valleys recessed in the otherwise flat binder surface.
摘要翻译： 用于超塑性成型模具或工具的尖形粘合剂表面密封珠缘以气密密封方式接合片材工件，特别是铝片，但是移动了少量的工件材料，所形成的片材不与工具结合并容易地移除 在成型操作完成。 尖端形状可以是截短的，并且密封形状可以包括在另外平坦的粘合剂表面中凹进的相邻的谷。
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公开(公告)号：US07112249B2
公开(公告)日：2006-09-26
申请号：US10674947
申请日：2003-09-30
CPC分类号： B21D26/021 , B21D26/031 , B21D26/055 , B21D37/16
摘要： A sheet material is gripped at its edges and hot blow formed by a pressurized working gas against a forming tool surface. The flow characteristics of the material are determined at increasing gas pressures over a range of temperature relevant to the forming operation. A predetermined pressure/time schedule is determined at a reference temperature for rapid shape formation of good parts on a continual basis. The process is then controlled as parts are thus formed by measuring the forming temperature of the parts and correcting the pressure time schedule, using the determined flow characteristics, for the actual temperature to achieve the desired shape evolution of the parts.
摘要翻译： 片材在其边缘处被夹持，并且由加压工作气体形成的热吹气抵靠成形工具表面。 在与成形操作相关的温度范围内，在增加的气体压力下确定材料的流动特性。 在基准温度下确定预定的压力/时间表，以便在连续的基础上快速形成好的部件。 然后控制该过程，因为通过测量部件的成形温度并且使用确定的流动特性来校正压力时间表来形成部件，以实现实际温度以实现部件的期望的形状演变。
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公开(公告)号：US06910358B2
公开(公告)日：2005-06-28
申请号：US10647401
申请日：2003-08-25
CPC分类号： B21D26/055 , B21D22/02 , B21D26/025 , B21D26/031 , B21D37/16
摘要： A method is disclosed for two-stage stretch forming of a sheet metal blank workpiece between a preform tool with a concave cavity and an opposing finish-form punch tool. Both tools are independently heated to different forming temperatures with the preform tool being hotter. Gas pressure is first applied to one side of the workpiece in the first forming stage to balloon it into the cavity of the preform tool. Gas pressure is then applied to the other side of the preformed workpiece to stretch it against the finish-form surface. The hotter preform tool enables faster forming and gas venting in the first stage. The cooler finish-form tool enables the final shaping of the part and its undistorted removal from the punch surface.
摘要翻译： 公开了一种用于在具有凹腔的预成型工具和相对的精加工冲压工具之间的金属板坯件的两段拉伸成型的方法。 两种工具都被独立加热到不同的成型温度，预成型工具更热。 首先在第一成形阶段将气体压力施加到工件的一侧，以将其压入预成型工具的空腔中。 然后将气体压力施加到预成型工件的另一侧，以将其压靠在精加工表面上。 较热的预成型工具能够在第一阶段中更快地形成和排气。 较冷的精加工工具可以实现零件的最终成型及其从冲头表面的无失真移除。
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公开(公告)号：US06810709B2
公开(公告)日：2004-11-02
申请号：US10269234
申请日：2002-10-11
IPC分类号： B21D3716
CPC分类号： B21D26/031 , B21D26/055 , B21D37/16 , Y10S72/709
摘要： A heated metal forming tool including an un-heated mounting plate that is attached to a press. A tool detail is attached to the mounting plate. Insulation surrounds the tool detail to thermally isolate it from the mounting plate, and from the tool surroundings. The tool detail is heated internally by heaters disposed in zones within the tool detail. The temperature of various portions of the tool detail can be independently controlled by varying the temperature within any of the zones.
摘要翻译： 一种加热的金属成形工具，其包括附接到压机的未加热的安装板。 工具细节附在安装板上。 绝缘体围绕工具细节，将其与安装板和工具环境隔离。 工具细节由位于工具细节区域内的加热器内部加热。 可以通过改变任何区域内的温度来独立地控制工具细节的各个部分的温度。
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