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    METHODS FOR CONSOLIDATING/MOLDING NEAR NET-SHAPED COMPONENTS MADE FROM POWDER
    2.
    发明公开
    METHODS FOR CONSOLIDATING/MOLDING NEAR NET-SHAPED COMPONENTS MADE FROM POWDER 审中-公开

    公开(公告)号：EP3610969A1

    公开(公告)日：2020-02-19

    申请号：EP19201556.8

    申请日：2013-12-20

    申请人： The Boeing Company

    发明人： MATSEN, Marc R. ,  NEGLEY, Mark A. ,  MILLER, Robert J.

    IPC分类号： B22F3/03 ,  B22F3/087 ,  B22F3/105 ,  B22F3/14 ,  C21D1/18 ,  C21D1/42 ,  C21D6/00 ,  C21D9/42 ,  H05B6/06 ,  H05B6/10

    摘要： A method for fabricating a component from powder comprises: (a) cold compacting powder to create a pre-form (100); (b) placing the pre-form between smart susceptors of an induction tool assembly (102); (c) flooding a space inside the induction tool assembly with an oxygen-free gas (104); (d) heating the smart susceptors to a leveling temperature by applying a varying low-strength magnetic field having a magnetic flux that passes through surfaces of the smart susceptors (106); (e) applying consolidation pressure to the pre-form at least during a time period subsequent to the temperature of the smart susceptors reaching the leveling temperature (108); and (f) while consolidation pressure is being applied, applying a pulsed high-strength magnetic field having a magnetic flux that passes through a surface of the pre-form (110). The strength of the high-strength magnetic field is greater than a peak strength of the low-strength magnetic field. The strength and pulse rate of the high-strength magnetic field are selected so that the crystallographic phase of the pre-form will rapidly oscillate at a substantially constant temperature. The pulsed high-strength magnetic field is applied sufficiently long that superplasticity of the pre-form is attained during phase oscillation.

    DYNAMIC BONDING OF POWDER METALLURGY MATERIALS
    3.
    发明公开
    DYNAMIC BONDING OF POWDER METALLURGY MATERIALS 有权
    粉末冶金材料的动态粘结

    公开(公告)号：EP3187281A1

    公开(公告)日：2017-07-05

    申请号：EP16206050.3

    申请日：2016-12-22

    申请人： United Technologies Corporation

    发明人： BALES, Daniel A. ,  WATSON, Thomas J.

    IPC分类号： B22F3/08 ,  B22F3/087 ,  B22F5/04 ,  F01D5/34 ,  B22F5/10

    摘要： A dynamic compaction process comprising providing (200) a container (20;118) having a cylinder shape; filling said container (20;118) with a first powder material (16;110;114); and dynamically compacting (210) said first powder material (16; 110; 114). Aerospace component manufactured by dynamic compaction.

    摘要翻译： 一种强力压实方法，包括提供（200）具有圆柱形状的容器（20; 118） 用第一粉末材料（16; 110; 114）填充所述容器（20; 118）; 并且动态地压实（210）所述第一粉末材料（16; 110; 114）。 航空零部件由强力压实生产。

    MULTILEVEL PARTS FROM AGGLOMERATED SPHERICAL METAL POWDER
    5.
    发明公开
    MULTILEVEL PARTS FROM AGGLOMERATED SPHERICAL METAL POWDER 有权
    MULTI-LAYER份采用聚集金属粉球

    公开(公告)号：EP2376247A1

    公开(公告)日：2011-10-19

    申请号：EP10729366.4

    申请日：2010-01-08

    申请人： Metec Powder Metal AB

    发明人： ÅSLUND, Christer

    IPC分类号： B22F3/087 ,  B22F3/11 ,  B22F3/12 ,  B22F3/15 ,  B22F3/16 ,  B22F3/17

    摘要： A method for the manufacture of a multilevel metal part, the method including the steps of: a) compacting agglomerated spherical metal powder to a green multilevel preform such that an open porosity exists, wherein the green multilevel preform fulfills the relation zg=zHVC·a, b) debinding the green preform, c) sintering the green preform in an atmosphere including hydrogen, d) compacting the green preform with high velocity compaction to a density of at least 95% TD, e) subjecting the part to densification to a density of at least 99% TD. There is further provided a multilevel metal part. Advantages of the method include that it is possible to manufacture a multilevel part which is essentially uniform throughout the entire part and which has excellent tolerance, which at the same time has virtually full density and thereby having excellent mechanical properties as well as excellent corrosion properties.