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    • 1. 发明授权
    • Forging method and apparatus
    • 锻造方法和装置
    • US4312211A
    • 1982-01-26
    • US211479
    • 1980-11-28
    • Donald G. MacNitt, Jr.Bryant H. Walker
    • Donald G. MacNitt, Jr.Bryant H. Walker
    • B21J5/02B21J9/02B21J13/02B21K1/36B21K1/32
    • B21J9/02B21J13/02B21J5/02B21K1/36B21K29/00
    • The present invention provides methods and apparatus improving the dimensional accuracy of forged components. Uniformity of like component details is sought and a specific object is to provide a die package for forming closely toleranced appendages integrally with a central disk structure from which the appendages extend. In one effective embodiment incorporating concepts of the present invention, the forging dies include a stationary die and a movable die comprising at least two separately movable elements which are mounted on a common axis with the stationary die. A plurality of arcuate die segments are adjacently placed in cylindrical array about the stationary and movable dies. The arcuate die segments form cavities of the inverse geometry of the appendages to be formed and in at least one embodiment are interlocked to prevent tilting of the segments in the die package. The movable die elements are sequenceable to form a billet of material into a workpiece having an intermediate configuration, and subsequently into a workpiece of final configuration. In at least one embodiment, pressure pads are disposed against one of the movable dies to prevent displacement of that die by the billet material as the intermediate configuration is formed.
    • 本发明提供了改进锻造部件的尺寸精度的方法和装置。 寻求类似部件细节的均匀性,并且具体目的是提供一种用于与附件延伸的中心盘结构一体地形成紧密公差的附件的模具包装。 在结合本发明的概念的一个有效实施例中,锻造模具包括固定模具和可移动模具,该模具包括至少两个分别可移动的元件,其与固定模具安装在公共轴线上。 多个弧形模具段围绕固定和可移动模具相邻地放置在圆柱形阵列中。 弓形模片段形成待形成的附属物的相反几何形状的空腔,并且在至少一个实施例中互锁以防止模具包装中的段的倾斜。 可移动模具元件可以顺序地形成材料坯料到具有中间构造的工件中,随后形成最终构造的工件。 在至少一个实施例中,将压力垫设置在可动模具中的一个上,以防止当形成中间构造时该模具被坯料材料移位。
    • 2. 发明授权
    • Forging apparatus having means for radially moving blade die segments
    • 具有用于径向移动刀片模具段的装置的锻造装置
    • US4150557A
    • 1979-04-24
    • US860517
    • 1977-12-14
    • Bryant H. WalkerRalph B. Bogard
    • Bryant H. WalkerRalph B. Bogard
    • B21J5/02B21J13/02B21K1/32B21K1/36
    • B21K1/36B21J13/02B21J13/025B21J5/02Y10T29/49325
    • A forging apparatus has an upper die and lower die with the lower die being positioned on a die stack with the upper die being movable by a ram, said upper and lower dies having cylindrical portions extending towards each other where the rim of the formed disc is to be located. Blade dies are positioned around the radial opening presented between the two faces of the upper and lower die as they rest on a preformed blank, said cylindrical array of blade dies being held in position by two wires around their outer circumference and supported in the forging operation by a cylindrical back-up die; the cylindrical array of blade dies being slanted outwardly at its upper and lower edge from where they engage the cylindrical portions, forming an upper and lower annular cam surface. Ring members are positioned around both of said cylindrical sections for slidable movement thereon, said ring members being of wedge-shape cross-section so that as they are moved inwardly, when they contact said cam surfaces, they will cam said blade dies radially outward. Actuating pins extend from each of said ring members to a location above and below their respective upper and lower dies where they can be actuated by spider arms fixed to an actuating shaft which extends through their respective ram or die stack. Knockout pins are located in the upper and lower dies and are actuated by rods extending through each of the actuating shafts.
    • 锻造装置具有上模具和下模具,下模具定位在模具堆叠上,上模具可由冲头移动,所述上模具和下模具具有朝向彼此延伸的圆柱形部分,其中形成的圆盘的边缘为 被安置在。 叶片模具围绕放置在上模具和下模具的两个表面之间的径向开口定位,因为它们搁置在预成型坯件上,所述圆柱形刀片模具阵列通过围绕其外圆周的两根丝线保持在适当位置并被支撑在锻造操作中 通过圆柱形支撑模具; 刀片模具的圆柱形阵列在其上下边缘处向外倾斜,从而与圆柱形部分接合,形成上下环形凸轮表面。 环形构件围绕两个所述圆柱形部分定位以可滑动地移动,所述环形构件为楔形横截面,使得当它们向内移动时,当它们接触所述凸轮表面时,它们将径向向外凸轮。 致动销从每个所述环形构件延伸到其相应的上模具和下模具的上方和下方的位置,在该位置上,可以通过固定到延伸穿过它们相应的压头或模具叠层的致动轴的蜘蛛臂来致动。 敲击销位于上模具和下模具中,并且通过延伸穿过每个致动轴的杆来致动。
    • 3. 发明授权
    • Forging die package
    • 锻造模具包装
    • US4531396A
    • 1985-07-30
    • US498240
    • 1983-05-26
    • Donald G. MacNitt, Jr.Raymond M. WalkerBryant H. Walker
    • Donald G. MacNitt, Jr.Raymond M. WalkerBryant H. Walker
    • B21J5/02B21J13/02B21K1/36B21K3/02B21D31/00
    • B21K1/36B21J13/02Y10T29/49513
    • A die package for forming a central disc structure having a plurality of integrally formed appendages extending therefrom includes a cylindrical array of appendage forming, abutting die segments which are prevented from tilting or moving in a circumferential direction by means of pins extending into slots formed along the parting lines between abutting die segments in the upper surfaces of the segments. In one embodiment, the pins extend upwardly from between opposed, parallel, radially and axially extending walls of each slot and fit tightly between said walls. The upper ends of the pins are secured to a rigid annular ring overlying the slots. The slots extend radially inwardly of the pins to allow the die segments to be moved radially outwardly after forging to release the forging from the die package.
    • 用于形成具有从其延伸的多个一体形成的附属物的中心盘结构的模具封装包括附加成形的圆柱形阵列,邻接的模具段,其通过延伸到沿着圆形方向形成的槽中的销在圆周方向上被倾斜或移动 在段的上表面中的邻接的模具段之间的分隔线。 在一个实施例中,销从每个槽的相对的,平行的,径向和轴向延伸的壁向上延伸,并且紧密地配合在所述壁之间。 销的上端固定到覆盖槽的刚性环形环上。 槽在销的径向向内延伸,以允许模具段在锻造之后径向向外移动以从模具包装释放锻造。
    • 4. 发明授权
    • Forging method and die package therefor
    • 锻造方法和模具包装
    • US4530229A
    • 1985-07-23
    • US498233
    • 1983-05-26
    • Bryant H. Walker
    • Bryant H. Walker
    • B21J5/02B21J13/02B21K1/36B21D22/00
    • B21J13/02B21J5/02B21K1/36Y10T29/49336
    • A die package for forging a central disc structure having a plurality of integrally formed appendages extending radially outwardly therefrom includes a circumferential array of abutting die segments defining a central cavity within the array and appendage forming cavities between the segments. Each die segment has a locating hole in its upper surface, and an annular support member overlies the holes and has a plurality of locating holes therein, one hole corresponding to each hole in said die segments. A non-metallic rod, such as a glass rod, is disposed tightly within and extends between each pair of aligned holes, thereby locating the die segments accurately relative to each other and to a central axis of the die package. The rods are shearable at elevated temperatures to enable radial movement of the die segments after forging for releasing the forged component from the die package.
    • 用于锻造具有从其径向向外延伸的多个整体形成的附件的中心圆盘结构的模具组件包括限定阵列内的中心空腔的邻接模具段的周向阵列,并且在所述段之间形成腔体。 每个模具段在其上表面中具有定位孔,并且环形支撑构件覆盖在孔上并且在其中具有多个定位孔,一个孔对应于所述模具段中的每个孔。 诸如玻璃棒的非金属杆紧密地设置在每对对准的孔内并在每对对准的孔之间延伸,从而相对于彼此和管芯封装的中心轴线精确地定位模具段。 杆在升高的温度下是可剪切的,以便锻造后的模具段的径向移动,以将锻造的部件从模具包装释放。
    • 5. 发明授权
    • Die assembly for use in forging operation
    • 模具组装用于锻造操作
    • US4252011A
    • 1981-02-24
    • US090211
    • 1979-11-01
    • Donald G. MacNitt, Jr.Bryant H. Walker
    • Donald G. MacNitt, Jr.Bryant H. Walker
    • B21J5/02B21J9/02B21J13/02B21K1/36B21K3/04B21K1/32
    • B21J5/02B21J13/02B21J9/02B21K1/36B21K29/00Y10T29/49488
    • The present invention provides a technique for improving the dimensional accuracy of forged components. Uniformity of like component details is sought and a specific object is to provide a die package for forming closely toleranced appendages integrally with a central disk structure from which the appendages extend.In one effective embodiment incorporating concepts of the present invention, the forging dies include a stationary die 26 and a moveable die 28 which are mounted on a common axis and a plurality of arcuate die segments 30 which are adjacently placed in cylindrical array about the stationary and moveable dies. The arcuate die segments form cavities of the inverse geometry of the appendages to be formed and are interlocked to prevent tilting of the segments in the die package. A collar 40 extends from the stationary die to interlocking engagement with a channel 46 in the inwardly facing surface of each arcuate die segment.
    • 本发明提供了一种提高锻造部件的尺寸精度的技术。 寻求类似部件细节的均匀性,并且具体目的是提供一种用于与附件延伸的中心盘结构一体地形成紧密公差的附件的模具包装。 在结合本发明的概念的一个有效实施例中,锻造模具包括固定模具26和安装在公共轴线上的可移动模具28和多个弓形模具段30,这些弓形模具段30围绕固定件相邻地放置成圆柱形阵列, 移动模具 弓形模具段形成待形成的附件的相反几何形状的空腔,并且互锁以防止模具封装中的段的倾斜。 套环40从固定模具延伸到与每个弧形模具段的面向内的表面中的通道46互锁接合。
    • 8. 发明授权
    • Forging apparatus
    • 锻造装置
    • US4265105A
    • 1981-05-05
    • US90184
    • 1979-11-01
    • Donald G. MacNitt, Jr.Bryant H. Walker
    • Donald G. MacNitt, Jr.Bryant H. Walker
    • B21J5/02B21J9/02B21J13/02B21K1/36B21K3/04B21K1/32
    • B21J5/02B21J13/02B21J9/02B21K1/36B21K29/00Y10T29/49336
    • The present invention provides methods and apparatus improving the dimensional accuracy of forged components. Uniformity of like component details is sought and a specific object is to provide a die package for forming closely toleranced appendages integrally with a central disk structure from which the appendages extend.In one effective embodiment incorporating concepts of the present invention, the forging dies include a stationary die and a movable die comprising at least two separately movable elements which are mounted on a common axis with the stationary die. A plurality of arcuate die segments are adjacently placed in cylindrical array about the stationary and movable dies. The arcuate die segments form cavities of the inverse geometry of the appendages to be formed and in at least one embodiment are interlocked to prevent tilting of the segments in the die package.The movable die elements are sequenceable to form a billet of material into a workpiece having an intermediate configuration, and subsequently into a workpiece of final configuration. In at least one embodiment, pressure pads are disposed against one of the movable dies to prevent displacement of that die by the billet material as the intermediate configuration is formed.
    • 本发明提供了改进锻造部件的尺寸精度的方法和装置。 寻求类似部件细节的均匀性,并且具体目的是提供一种用于与附件延伸的中心盘结构一体地形成紧密公差的附件的模具包装。 在结合本发明的概念的一个有效实施例中,锻造模具包括固定模具和可移动模具,该模具包括至少两个分别可移动的元件,其与固定模具安装在公共轴线上。 多个弧形模具段围绕固定和可移动模具相邻地放置在圆柱形阵列中。 弓形模片段形成待形成的附属物的相反几何形状的空腔,并且在至少一个实施例中互锁以防止模具包装中的段的倾斜。 可移动模具元件可以顺序地形成材料坯料到具有中间构造的工件中,随后形成最终构造的工件。 在至少一个实施例中,将压力垫设置在可动模具中的一个上,以防止当形成中间构造时该模具被坯料材料移位。
    • 9. 发明授权
    • Method of forming a turbine rotor
    • 形成涡轮转子的方法
    • US4051585A
    • 1977-10-04
    • US708672
    • 1976-07-26
    • Bryant H. WalkerWilliam D. CarruthersDonald G. MacNitt, Jr.
    • Bryant H. WalkerWilliam D. CarruthersDonald G. MacNitt, Jr.
    • B23P15/00F01D5/30B23P15/04
    • F01D5/3092B23P15/006F01D5/3069F01D5/3084Y10T29/49321Y10T29/49915Y10T29/49925
    • A rotor for a gas turbine engine has a wrought superalloy disk with ceramic blades. The rotor is formed by placing ceramic blades in a fixture with their ceramic blade roots extending inwardly and between the upper and lower rims of a disk or disk halves. The facing upper and lower circumferential rims are cut away to provide for the ceramic blade roots. Said disk or disk halves being of a wrought superalloy having a fine grain size microstructure which can be placed in a superplastic condition. A compliant layer material is placed between the ceramic blade roots and the rims of the disk, and the disk and compliant layer are then heated so as to place the disk in a superplastic condition and pressed into intimate contact with the ceramic blade root, and if disk halves are being used, they are bonded together at inner mating surfaces. The rotor is then heat treated to return the disk to its normal condition of high strength and hardness. The compliant layer can be a thin layer of material inserted between the blade root and disk, or it can be a material applied directly to the blade root or disk slot such as by plating, sputtering, or flame spraying.
    • 用于燃气涡轮发动机的转子具有带陶瓷刀片的锻造超合金盘。 转子通过将陶瓷刀片放置在固定装置中而形成,其陶瓷刀片根部向内延伸并且在盘或盘半部的上下边缘之间延伸。 切割面向的上周缘和下圆周边缘以提供陶瓷叶片根部。 所述盘或盘半部是具有细晶粒度微结构的锻造超级合金,其可以放置在超塑性条件下。 将柔性层材料放置在陶瓷叶片根部和盘的边缘之间,然后加热盘和柔顺层,以便将盘放置在超塑性状态并压制成与陶瓷刀片根部紧密接触,并且如果 正在使用磁盘半部,它们在内部配合表面处结合在一起。 然后对转子进行热处理以将盘返回到其高强度和硬度的正常状态。 顺应层可以是插入在叶片根部和盘之间的薄材料层,或者它可以是直接施加到叶片根部或盘槽上的材料,例如通过电镀,溅射或火焰喷涂。