公开(公告)号：US20070101795A1

公开(公告)日：2007-05-10

申请号：US10580210

申请日：2004-11-25

申请人： Yoshihisa Doi ,  Kaoru Yamanoi

发明人： Yoshihisa Doi ,  Kaoru Yamanoi

IPC分类号： B21D22/00 ,  B21K1/26

CPC分类号： F16D3/20 ,  B21K1/762

摘要： A method of manufacturing an outer ring member for a constant velocity joint, comprising the steps of forming a secondary molding by applying a preliminary upsetting to a work after applying a forward extrusion-molding to the work, forming intermediate pre-molded bodies having annular sloped surfaces formed thereon to have a difference in flow resistance between large diameter parts and small diameter parts by applying the upsetting to the upper part of the secondary molding, forming a quaternary molding having a cup part with track grooves by applying a backward extrusion-molding to the intermediate pre-molded bodies, and applying an ironing to the cup part of the quaternary molding to finish the quaternary molding to product dimensions.

摘要翻译： 一种制造用于等速万向节的外圈构件的方法，包括以下步骤：通过向工件施加正向挤压成型之后对工件施加初步镦锻形成二次模制件，形成具有环形倾斜的中间预成型体 在其上形成的表面通过将镦锻施加到二次模制件的上部而在大直径部件和小直径部件之间具有差异的流动阻力，通过向后挤压成型形成具有带有凹槽的杯部的四元模制件 中间预成型体，并且对四元成型体的杯部进行熨烫以完成四次成型以达到产品尺寸。

公开(公告)号：US07347077B2

公开(公告)日：2008-03-25

申请号：US10580210

申请日：2004-11-25

申请人： Yoshihisa Doi ,  Kaoru Yamanoi

发明人： Yoshihisa Doi ,  Kaoru Yamanoi

IPC分类号： B21D22/00

CPC分类号： F16D3/20 ,  B21K1/762

摘要： A method of manufacturing an outer ring member for a constant velocity joint, comprising the steps of forming a secondary molding by applying a preliminary upsetting to a work after applying a forward extrusion-molding to the work, forming intermediate pre-molded bodies having annular sloped surfaces formed thereon to have a difference in flow resistance between large diameter parts and small diameter parts by applying the upsetting to the upper part of the secondary molding, forming a quaternary molding having a cup part with track grooves by applying a backward extrusion-molding to the intermediate pre-molded bodies, and applying an ironing to the cup part of the quaternary molding to finish the quaternary molding to product dimensions.

摘要翻译： 一种制造用于等速万向节的外圈构件的方法，包括以下步骤：通过向工件施加正向挤压成型之后对工件施加初步镦锻形成二次模制件，形成具有环形倾斜的中间预成型体 在其上形成的表面通过将镦锻施加到二次模制件的上部而在大直径部件和小直径部件之间具有差异的流动阻力，通过向后挤压成型形成具有带有凹槽的杯部的四元模制件 中间预成型体，并且对四元成型体的杯部进行熨烫以完成四次成型以达到产品尺寸。

公开(公告)号：US4739644A

公开(公告)日：1988-04-26

申请号：US947737

申请日：1986-12-30

申请人： Toshio Maki ,  Masao Kuramitsu ,  Kaoru Yamanoi

发明人： Toshio Maki ,  Masao Kuramitsu ,  Kaoru Yamanoi

IPC分类号： B21K1/30 ,  B21C23/03 ,  B21K1/76

CPC分类号： B21K1/30 ,  Y10T29/49474

摘要： A cup-shaped raw workpiece having a bottom panel and a cylindrically-shaped circumferential panel is positioned facing downwardly on a movable lower punch having a forming gear profile. The lower punch is provided in a die having an orifice portion which together with the gear profile defines an orifice. A resilient mechanism resists downward movement of the lower punch. An upper punch is lowered to hold the bottom panel of the workpiece against the lower punch and pushes the workpiece to extrusion form the inner surface thereof through the orifice. An escape groove for excess metal can be provided in the bottom inside corner of the workpiece at the juncture of the circumferential panel and the bottom panel. The lower punch can be provided with an upwardly extending protrusion near the outer circumferential edge of the upper end surface thereof which has an outer chamfered circumferential edge.

摘要翻译： 具有底板和圆柱形周面板的杯状原料工件面向下定位在具有成形齿轮轮廓的可动下冲头上。 下冲头设置在具有孔部分的模具中，孔部分与齿轮轮廓一起形成孔口。 弹性机构抵抗下冲头的向下运动。 上冲头下降以将工件的底板保持抵靠下冲头，并通过孔口将工件推向其内表面。 在周面板和底板的接合处，可以在工件的底部内角设置用于多余金属的排出槽。 下冲头可以在其上端表面的外周边缘附近设置有向上延伸的突出部，其具有外倒角的圆周边缘。