POWDER METAL FORGING AND METHOD AND APPARATUS OF MANUFACTURE
    1.
    发明申请
    POWDER METAL FORGING AND METHOD AND APPARATUS OF MANUFACTURE 审中-公开
    粉末金属锻造及其制造方法和装置

    公开(公告)号:WO2008100811A1

    公开(公告)日:2008-08-21

    申请号:PCT/US2008/053389

    申请日:2008-02-08

    Abstract: A method of forming a powder metal forging, including the steps of: forming a preform including a sintered powder metal composition; inserting the preform in a die set having a bottom die and a top die, the die set defining a forge form therewithin, the die set being in a closed position wherein the top die is contacting the bottom die; and compressing the preform in the forge form using an upper punch and a lower punch, the compressing step resulting in a formed part. The closed die set minimizes or eliminates flash in the formed part, particularly in the contoured surfaces, which allows the forging to be through hardened by direct quenching after the forging operation, without the need to remove hardened flash from these surfaces.

    Abstract translation: 一种形成粉末金属锻件的方法,包括以下步骤:形成包含烧结粉末金属组合物的预成型体; 将预型件插入具有底模和顶模的模具组中,模具组在其中限定锻造形式,模具组处于关闭位置,其中顶模与底模接触; 并且使用上冲头和下冲头将锻造形状的预成型件压缩,所述压缩步骤导致形成的部件。 封闭的模具组件最小化或消除了成形部件中的闪光,特别是在成型表面中,这允许锻造在锻造操作之后通过直接淬火而被硬化,而不需要从这些表面去除硬化的闪光。

    POWDER METAL FORGING AND METHOD AND APPARATUS OF MANUFACTURE
    3.
    发明申请
    POWDER METAL FORGING AND METHOD AND APPARATUS OF MANUFACTURE 审中-公开
    粉末金属锻造及其制造方法和装置

    公开(公告)号:WO2008073952A3

    公开(公告)日:2008-11-06

    申请号:PCT/US2007087149

    申请日:2007-12-12

    Abstract: A method and apparatus for forming a powder metal forging (B) includes a die set (A1D) for forming the powder metal forging (B) having a first die (A) complementary with a second die (D) in a longitudinal direction (ZC). The die set (A,D) has at least two features (10) of dimensions with a longitudinal component (10) and a lateral component (18), and at least the lateral component (18) varies along the longitudinal direction (ZC), at least one such feature (10) in each die (A,D). Each of the first die (A) and the second die (D) includes a castellated parting interface (12,13) dissecting the laterally varying internal longitudinal feature (10, 18) in the first die from the laterally varying feature (10, 18) in the second die (D). The castellation (12,13) in the dies (A,D) provides forged powder metal parts (B) with features of opposite drafts without trapping the part (B) in the dies (A,D).

    Abstract translation: 用于形成粉末金属锻造的方法和装置(B)包括用于形成粉末金属锻件的模具组(A1D)(B),其具有沿纵向方向(ZC)与第二模具(D)互补的第一模具(A) )。 模具组(A,D)具有至少两个具有纵向部件(10)和横向部件(18)的尺寸特征(10),并且至少横向部件(18)沿纵向方向(ZC)变化, ,每个模具(A,D)中的至少一个这样的特征(10)。 第一模具(A)和第二模具(D)中的每一个包括将横向变化的第一模具中的横向变化的内部纵向特征(10,18)从横向变化的特征(10,18)解剖的雉ated分离界面 )在第二模具(D)中。 模具(A,D)中的地脚座(12,13)提供具有相对牵引力的特征的锻造粉末金属部件(B),而不会将模具(A,D)中的部件(B)捕获。

    POWDER METAL FORGING AND METHOD AND APPARATUS OF MANUFACTURE
    4.
    发明申请
    POWDER METAL FORGING AND METHOD AND APPARATUS OF MANUFACTURE 审中-公开
    粉末金属锻造及其制造方法和装置

    公开(公告)号:WO2008124378A1

    公开(公告)日:2008-10-16

    申请号:PCT/US2008/058980

    申请日:2008-04-01

    Abstract: A method of forming a powder metal forging, which includes the steps of providing a preform including a sintered powder metal composition; inserting the preform in at least one part of a die set having a top die and a bottom die, at least one of the top die and the bottom die defining a helical forge form therewithin; closing the die set wherein the top die is contacting the bottom die; and compressing the preform in the forge form using an upper punch including a core rod and a lower punch, the compressing step occurring after the closing step, the compressing step resulting in a formed part having a helical outer surface. The method and apparatus of the present invention is particularly advantageous when forming a powder metal forging helical outer surface and an inner contour such as a cylindrical inside diameter.

    Abstract translation: 一种形成粉末金属锻件的方法,其包括以下步骤:提供包含烧结粉末金属组合物的预成型体; 将所述预制件插入到具有顶模和底模的模组的至少一部分中,所述顶模和所述底模中的至少一个在其中限定螺旋形锻造形式; 关闭其中顶模与底模接触的模具组; 以及使用包括芯棒和下冲头的上冲头在锻造形式中压缩所述预制件,所述压缩步骤在所述关闭步骤之后发生,所述压缩步骤导致形成的部分具有螺旋形外表面。 本发明的方法和装置在形成锻造螺旋形外表面的粉末金属和诸如圆柱形内径的内部轮廓时是特别有利的。

    POWDER METAL FORGING AND METHOD AND APPARATUS OF MANUFACTURE
    5.
    发明申请
    POWDER METAL FORGING AND METHOD AND APPARATUS OF MANUFACTURE 审中-公开
    粉末金属锻造及其制造方法和装置

    公开(公告)号:WO2008073952A2

    公开(公告)日:2008-06-19

    申请号:PCT/US2007/087149

    申请日:2007-12-12

    Abstract: A method and apparatus for forming a powder metal forging includes a die set for forming the powder metal forging having a first die complementary with a second die in a longitudinal direction. The die set has at least two features of dimensions with a longitudinal component and a lateral component, and at least the lateral component varies along the longitudinal direction, at least one such feature in each die. Each of the first die and the second die includes a castellated parting interface dissecting the laterally varying internal longitudinal feature in the first die and from the laterally varying feature in the second die. The castellation in the dies provides forged powder metal parts with features of opposite drafts without trapping the part in the dies.

    Abstract translation: 用于形成粉末金属锻造的方法和装置包括:用于形成粉末金属锻件的模具组,其具有在纵向方向上与第二模具互补的第一模具。 模具具有至少两个具有纵向部件和横向部件的尺寸特征,并且至少横向部件沿着纵向方向变化,每个模具中至少有一个这样的特征。 第一模具和第二模具中的每一个包括解剖第一模具中的横向变化的内部纵向特征和第二模具中的横向变化的特征的雉鸡分离界面。 模具中的铸座提供具有相反吃水特征的锻造粉末金属部件,而不会将模具中的零件捕获。

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