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    • 6. 发明申请
    • POINT FORMING PROCESSES
    • 要点形成过程
    • US20140345355A1
    • 2014-11-27
    • US14457426
    • 2014-08-12
    • National Machinery LLC
    • Thomas E. HayDonald E. Krintzline
    • B21C1/32B21C25/02B21C9/00
    • B21C1/32B21C9/00B21C25/02B21J3/00B21J9/022
    • A set of tooling for a progressive forming machine comprising die and tool units having internal complementary cavity portions for receiving a workpiece, one of said units being arranged to slide a limited distance along its axis and to be biased by a spring force towards the other unit when the units are mounted in the forming machine, the units each having an end face with a smooth surface finish adapted to press against the smooth surface finish of the end face of the other unit, the end face area of one of the units being relatively small compared to its major cross-sectional area whereby a high contact pressure between the end faces is obtained for a given spring bias force such that extrusion/cooling oil coating a workpiece received in the cavity portions is restrained from leakage from the cavity portions across said end faces during a hydrostatic trapped extrusion of the workpiece in the die and tool units whereby the die and tool units are capable of shaping the workpiece to a degree beyond limits of conventional cold-forming processes.
    • 一种用于渐进式成型机的工具,包括具有用于接收工件的内部互补空腔部分的模具和工具单元,所述单元中的一个被布置成沿其轴线滑动有限的距离并且通过弹簧力朝向另一单元 当单元安装在成型机中时,每个具有光滑表面光洁度的端面的单元适于压靠另一单元的端面的光滑表面光洁度,其中一个单元的端面区域相对 与其主横截面积相比较小,由此在给定的弹簧偏压力下获得端面之间的高接触压力,使得涂覆容纳在空腔部分中的工件的挤出/冷却油被限制在穿过所述空腔部分的空腔部分的泄漏 在工件在模具和工具单元中的静水力捕获挤出期间的端面,由此模具和工具单元能够将工件成形为 超过传统冷成型工艺的极限。
    • 7. 发明授权
    • Point forming processes
    • 点形成过程
    • US08813533B2
    • 2014-08-26
    • US12561767
    • 2009-09-17
    • Donald E. KrintzlineThomas E. Hay
    • Donald E. KrintzlineThomas E. Hay
    • B21J5/00
    • B21C1/32B21C9/00B21C25/02B21J3/00B21J9/022
    • A set of tooling for a progressive forming machine comprising die and tool units having internal complementary cavity portions for receiving a workpiece, one of said units being arranged to slide a limited distance along its axis and to be biased by a spring force towards the other unit when the units are mounted in the forming machine, the units each having an end face with a smooth surface finish adapted to press against the smooth surface finish of the end face of the other unit, the end face area of one of the units being relatively small compared to its major cross-sectional area whereby a high contact pressure between the end faces is obtained for a given spring bias force such that extrusion/cooling oil coating a workpiece received in the cavity portions is restrained from leakage from the cavity portions across said end faces during a hydrostatic trapped extrusion of the workpiece in the die and tool units whereby the die and tool units are capable of shaping the workpiece to a degree beyond limits of conventional cold-forming processes.
    • 一种用于渐进式成型机的工具,包括具有用于接收工件的内部互补空腔部分的模具和工具单元,所述单元中的一个被布置成沿其轴线滑动有限的距离并且通过弹簧力朝向另一单元 当单元安装在成型机中时,每个具有光滑表面光洁度的端面的单元适于压靠另一单元的端面的光滑表面光洁度,其中一个单元的端面区域相对 与其主横截面积相比较小,由此在给定的弹簧偏压力下获得端面之间的高接触压力,使得涂覆容纳在空腔部分中的工件的挤出/冷却油被限制在穿过所述空腔部分的空腔部分的泄漏 在工件在模具和工具单元中的静水力捕获挤出期间的端面,由此模具和工具单元能够将工件成形为 超过传统冷成型工艺的极限。
    • 10. 发明申请
    • METHOD FOR PRODUCING A SMALL THIN-WALLED TUBE FROM A MAGNESIUM ALLOY
    • 从镁合金制造小薄壁管的方法
    • US20120125070A1
    • 2012-05-24
    • US13321427
    • 2010-05-19
    • Alois BirgmannMartin BrandeckerMaria KuehleinThomas Waltenberger
    • Alois BirgmannMartin BrandeckerMaria KuehleinThomas Waltenberger
    • B21C1/26B21C3/04B21C3/16
    • B21C1/003A61F2/82A61F2210/0004B21C1/24B21C1/26B21C3/04B21C3/16B21C9/00B21C23/18B21C37/30B21D22/00B21G1/08
    • The invention relates to a method for producing a small thin-walled tube for a medical application or for a medical product, in particular for a stent, wherein a blank of an in particular bioresorbable magnesium alloy is deformed to produce a small tube, after which the small tube is used for medical purposes or from which the medical product, such as a stent, can be made. In order to be able to produce the small tube in one step and with high precision, it is provided according to the invention that a male die (2) with a base body (3) and a mandrel (4) tapered relative to the base body (3) and the blank is provided with a blind hole or an opening, wherein a diameter of the blind hole or the opening of the blank is equal to or greater than an outer diameter of the mandrel (4), after which the blank with inserted mandrel (4) with the male die (2) is pressed forwards at least in part through a female die (5) with a receiving region (6) and a contouring region (7), wherein the contouring region (7) has a free diameter, which is larger than the outer diameter of the mandrel (4), but smaller than an outer diameter of the blank, in order to form the small tube.
    • 本发明涉及一种用于制造用于医疗应用或医疗产品,特别是用于支架的小型薄壁管的方法,其中特定生物可再吸收的镁合金的坯料变形以产生小管,之后 小管用于医疗目的,或者可以从其制造诸如支架的医疗产品。 为了能够在一个步骤中以高精度生产小管,根据本发明提供了一种具有基体(3)和心轴(4)的阳模(2)相对于基部 本体(3)和坯料设置有盲孔或开口,其中盲孔或坯料的开口的直径等于或大于心轴(4)的外径,之后坯料 其中插入的具有阳模(2)的心轴(4)至少部分地通过具有接收区域(6)和轮廓区域(7)的阴模(5)向前挤压,其中轮廓区域(7)具有 自由直径大于心轴(4)的外径,但小于坯料的外径,以便形成小管。