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    HOT EXTRUSION METHOD FOR PRODUCING A METAL PART, EXTRUSION TOOL FOR IMPLEMENTATION IT AND LANDING GEAR ROD THUS PRODUCED
    1.
    发明申请
    HOT EXTRUSION METHOD FOR PRODUCING A METAL PART, EXTRUSION TOOL FOR IMPLEMENTATION IT AND LANDING GEAR ROD THUS PRODUCED 审中-公开
    用于生产金属部件的热挤压方法，用于实施的挤压工具和生产的齿轮

    公开(公告)号：US20140053623A1

    公开(公告)日：2014-02-27

    申请号：US13825119

    申请日：2012-05-04

    申请人： Laurent Hebrard

    发明人： Laurent Hebrard

    IPC分类号： B21C37/06 ,  B64C25/00

    CPC分类号： B21C37/06 ,  B21C23/035 ,  B21C23/186 ,  B21K21/00 ,  B29C48/475 ,  B64C25/001 ,  Y10T428/12389

    摘要： A hot extrusion method for producing a metal piece comprising a tubular portion whereof one of the two ends is extended by a complex shape is provided. The method comprises: heating a billet from which the piece is made; and transferring the billet into a press extrusion tool, the tool including a cavity where the billet is placed and the shape of which substantially corresponds to the outer shape of the piece. The metal has, cold, a flow stress equal to or above 200 MPa. The complex shape and tubular portion are made by the following successive steps: at least one direct extrusion step using the first punch to produce the complex shape; a step for replacing the first punch with a second punch on the tool; at least one reverse extrusion step in the same tool to produce the tubular portion; and a step for evacuating the extruded piece.

    摘要翻译： 提供一种用于制造金属片的热挤压方法，其包括其两端中的一个延伸复杂形状的管状部分。 该方法包括：加热制成该片的坯料; 并且将坯料转移到挤压挤压工具中，该工具包括其中放置坯料的空腔，其形状基本上对应于该件的外部形状。 金属具有等于或高于200MPa的流动应力。 复杂形状和管状部分通过以下连续步骤制成：使用第一冲头产生复杂形状的至少一个直接挤压步骤; 在工具上用第二冲头替换第一冲头的步骤; 在相同的工具中的至少一个反向挤压步骤以产生管状部分; 以及用于抽出挤压件的步骤。

    Method for forging/molding a coarse blank of an aluminum transmission shaft
    3.
    发明授权
    Method for forging/molding a coarse blank of an aluminum transmission shaft 失效
    铝传动轴的粗坯的锻造/成型方法

    公开(公告)号：US07234223B2

    公开(公告)日：2007-06-26

    申请号：US10899486

    申请日：2004-07-26

    申请人： Chang Fa Liu

    发明人： Chang Fa Liu

    IPC分类号： B23P17/00 ,  B21D22/00 ,  B21K21/00

    CPC分类号： F16C3/02 ,  B21C23/035 ,  B21C23/186 ,  B21K1/74 ,  Y10T29/49616 ,  Y10T29/49622 ,  Y10T29/4998

    摘要： A method for forging/molding a coarse blank of an aluminum transmission shaft, including steps of: placing burn-in softened aluminum material into a preheated mold; using a first punch head to first forge the aluminum material in the mold cavity from outer side of the molding hole so as to form a blank body of the transmission shaft with two pivot heads wherein one pivot head is located at each end of the transmission shaft and a shorter middle shaft rod; moving out the first punch head and connecting an extension mold with the mold; and immediately using a second punch head to secondarily forge the blank body in the mold cavity from outer side of the extension hole so as to make an end section of the second punch head extend into the mold cavity to a position near the inner end of the mold cavity, whereby the middle shaft rod of the blank body outward axially extends to the extension mold into a predetermined length to form the transmission shaft.

    摘要翻译： 一种用于锻造/模制铝传动轴的粗坯的方法，包括以下步骤：将经煅烧的软化铝材料放入预热的模具中; 使用第一冲头首先从模制孔的外侧锻造模腔中的铝材料，以便形成具有两个枢转头的传动轴的坯体，其中一个枢轴头位于传动轴的每一端 和较短的中轴杆; 移出第一个冲头并将延伸模与模具相连; 并且立即使用第二冲头来从延伸孔的外侧二次锻造模腔中的坯体，使得第二冲头的端部部分延伸到模腔中至靠近内腔的位置 模腔，由此坯体的中轴杆向外轴向延伸到延伸模具预定长度以形成传动轴。

    Forming of materials
    4.
    发明授权
    Forming of materials 失效
    材料的形成

    公开(公告)号：US3884062A

    公开(公告)日：1975-05-20

    申请号：US35753173

    申请日：1973-05-07

    申请人： ATOMIC ENERGY AUTHORITY UK

    发明人： GREEN DEREK

    IPC分类号： B21C23/00 ,  B21C23/03 ,  B21C23/08

    CPC分类号： B21C23/035 ,  B21C23/004 ,  B21C23/005 ,  B21C23/007

    摘要： A process for producing an extrusion of small cross section from a workpiece in which the workpiece is subjected to a bulk compressive stress in a container so that the end of the workpiece is forced into a reducing die at the end of the container. The material of the workpiece in the reducing die is subjected to an additional localised compressive stress by a tool member having a working face which is applied to the material of the workpiece in the reducing die. Under the combined compressive stresses the material of the workpiece is formed through a die orifice. In one arrangement a rotary tool member is employed which is moved in a circular path through the workpiece material in the reducing die. In another arrangement the tool member is in the form of a reciprocating punch.

    摘要翻译： 一种用于从工件产生小横截面的挤压方法，其中工件在容器中经受体积压应力，使得工件的端部被迫进入容器端部的还原模具。 还原模具中的工件的材料通过具有施加到还原模具中的工件的材料的工作面的工具构件受到额外的局部压缩应力。 在组合的压缩应力下，工件的材料通过模孔形成。 在一种布置中，使用旋转工具构件，其以圆形路径移动通过还原模具中的工件材料。 在另一种布置中，工具构件是往复式冲头的形式。

    Method for forging/molding a coarse blank of an aluminum transmission shaft
    7.
    发明申请
    Method for forging/molding a coarse blank of an aluminum transmission shaft 失效
    铝传动轴的粗坯的锻造/成型方法

    公开(公告)号：US20060016077A1

    公开(公告)日：2006-01-26

    申请号：US10899486

    申请日：2004-07-26

    申请人： Chang Liu

    发明人： Chang Liu

    IPC分类号： B21D47/00

    CPC分类号： F16C3/02 ,  B21C23/035 ,  B21C23/186 ,  B21K1/74 ,  Y10T29/49616 ,  Y10T29/49622 ,  Y10T29/4998

    摘要： A method for forging/molding a coarse blank of an aluminum transmission shaft, including steps of: placing burn-in softened aluminum material into a preheated mold; using a first punch head to first forge the aluminum material in the mold cavity from outer side of the molding hole so as to form a blank body of the transmission shaft with two pivot heads at two ends and a shorter middle shaft rod; moving out the first punch head and connecting an extension mold with the mold; and immediately using a second punch head to secondarily forge the blank body in the mold cavity from outer side of the extension hole so as to make an end section of the second punch head extend into the mold cavity to a position near the inner end of the mold cavity, whereby the middle shaft rod of the blank body outward axially extends to the extension mold into a predetermined length to form the transmission shaft.

    摘要翻译： 一种用于锻造/模制铝传动轴的粗坯的方法，包括以下步骤：将经煅烧的软化铝材料放入预热的模具中; 使用第一冲头首先从模制孔的外侧锻造模腔中的铝材料，以形成传动轴的坯体，其两端具有两个枢轴头和较短的中轴杆; 移出第一个冲头并将延伸模与模具相连; 并且立即使用第二冲头来从延伸孔的外侧二次锻造模腔中的坯体，使得第二冲头的端部部分延伸到模腔中至靠近内腔的位置 模腔，由此坯体的中轴杆向外轴向延伸到延伸模具预定长度以形成传动轴。

    Method and apparatus for extrusion
    8.
    发明授权
    Method and apparatus for extrusion 失效
    挤出方法和设备

    公开(公告)号：US3999415A

    公开(公告)日：1976-12-28

    申请号：US642907

    申请日：1975-12-22

    申请人： Alfred Robertson Austen

    发明人： Alfred Robertson Austen

    IPC分类号： B21C23/00 ,  B21C23/03 ,  B21C23/08 ,  B21C25/00 ,  B21D26/02

    CPC分类号： B21C23/08 ,  B21C23/007 ,  B21C23/008 ,  B21C23/035 ,  B21C23/085 ,  B21C25/00

    摘要： Die arrangement for use with conventional and hydrostatic extrusion presses consisting of a first die for providing a first extruded section of a billet and a second die cooperating with the first die to further extrude said first extruded section to final shape. Successive dies beyond the second die are contemplated to provide successive step-wise extrusion for greater reductions, especially of large billets. The method of the invention comprises step-wise incremental sequential extrusion of the billet and extruded portions of the billet until the final shape is achieved.

    摘要翻译： 用于与用于提供坯料的第一挤压部分的第一模具和与第一模具配合的第二模具的常规和静液压挤压机的模具布置，以进一步将所述第一挤压部分挤出成最终形状。 考虑到超过第二模具的连续模具提供连续的逐步挤压，以实现更大的减少，尤其是大型坯料。 本发明的方法包括坯料和坯料的挤出部分的逐步增量顺序挤出，直到达到最终形状。