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    • 7. 发明授权
    • Method for forging/molding a coarse blank of an aluminum transmission shaft
    • 铝传动轴的粗坯的锻造/成型方法
    • US07234223B2
    • 2007-06-26
    • US10899486
    • 2004-07-26
    • Chang Fa Liu
    • Chang Fa Liu
    • B23P17/00B21D22/00B21K21/00
    • F16C3/02B21C23/035B21C23/186B21K1/74Y10T29/49616Y10T29/49622Y10T29/4998
    • 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.
    • 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。
    • 8. 发明申请
    • HOT EXTRUSION METHOD FOR PRODUCING A METAL PART, EXTRUSION TOOL FOR IMPLEMENTATION IT AND LANDING GEAR ROD THUS PRODUCED
    • 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
    • US20140053623A1
    • 2014-02-27
    • US13825119
    • 2012-05-04
    • Laurent Hebrard
    • Laurent Hebrard
    • B21C37/06B64C25/00
    • B21C37/06B21C23/035B21C23/186B21K21/00B29C48/475B64C25/001Y10T428/12389
    • 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.
    • 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。