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    • 1. 发明授权
    • Method of forming a metal part having an annular flange
    • 形成具有环形凸缘的金属部件的方法
    • US4607514A
    • 1986-08-26
    • US607856
    • 1984-05-07
    • Russell A. Nippert
    • Russell A. Nippert
    • B21J5/08B21J5/02B21K1/62B21K23/04H01L21/48B21D22/00
    • B21K23/04B21J5/02H01L21/48
    • A pill-shaped billet which is tapered in thickness toward an outer, relatively thin rim, extending circumferentially therearound, is cold formed into a metal part having an annular flange. Upper and lower die elements define cavities, and shoulders extending circumferentially therearound, and are positioned in a sleeve with the shoulders being directly opposed, thereby defining an annular space. The billet is placed between the upper and lower die elements in the sleeve with the rim of the billet in the annular space. The upper and lower die elements contact the billet only along the edges between their respective shoulders and cavities. When the upper and lower die elements are moved toward each other, the annular flange is formed by extruding radially outward the part of the billet between the shoulders, while simultaneously cold forming the billet into the first and second cavities.
    • 朝向朝向周向周向延伸的外部相对薄的边缘的厚度呈锥形的丸状坯料被冷成型为具有环形凸缘的金属部件。 上和下模具元件限定空腔和肩部沿其周向延伸,并且定位在套筒中,肩部直接相对,从而限定环形空间。 坯料被放置在套筒中的上模和下模元件之间,其中坯料的边缘在环形空间中。 上下模具元件仅沿着它们各自的肩部和空腔之间的边缘接触坯料。 当上下模具元件彼此相对移动时,环形凸缘通过径向向外挤压坯料之间的坯料而形成,同时将坯料冷成型为第一和第二空腔。
    • 4. 发明授权
    • Method of making a male resistance welding electrode
    • 制作阳电阻焊接电极的方法
    • US4423617A
    • 1984-01-03
    • US351056
    • 1982-02-22
    • Russell A. Nippert
    • Russell A. Nippert
    • B21C23/14B21K21/08B23K11/30B23K35/40B21D22/00
    • B21K21/08B21C23/14B23K11/3009B23K35/402Y10T29/49117
    • A method of making a male resistance welding electrode includes a forward extrusion step in which the shank portion of the electrode is partially formed by extruding a cut-off billet of dispersion strengthened copper over a pin in a first die. Subsequently, the preform billet produced in the first die is inserted into a second die which defines a tapered shank cavity region around a central pin and a larger cavity region from which the head portion of the electrode is ultimately formed. The shank portion of the electrode is formed and the head portion worked substantially by the application of pressure to the preform billet by a first forming member. Final forming occurs when a second forming member applies pressure to the head of the electrode while the electrode remains in the second die. If desired, a small nose portion may be formed on the tip of the electrode by the second forming member and subsequently removed in a machining or cutting operation, eliminating surface irregularities in the electrode head portion surface.
    • 制造阳电阻焊接电极的方法包括:正向挤压步骤,其中电极的柄部分通过在第一管芯中的销上挤出分散强化铜的切断部分而部分地形成。 随后,将在第一模具中产生的预成型坯坯插入第二模具中,该第二模具限定围绕中心销的锥形柄空腔区域和最终形成电极头部的较大腔区域。 形成电极的柄部,并且头部通过第一成形构件对预成型坯坯施加压力。 当第二形成构件在电极保持在第二模具中时向电极的头部施加压力时发生最终形成。 如果需要,可以通过第二成形构件在电极的尖端上形成小的鼻部,并且随后在机械加工或切割操作中移除,消除电极头部部分表面中的表面不规则。
    • 8. 发明授权
    • Copper bimetal brazed resistance welding electrode
    • 铜双金属钎焊电阻焊接电极
    • US4345136A
    • 1982-08-17
    • US238901
    • 1981-02-27
    • Russell A. Nippert
    • Russell A. Nippert
    • B23K11/30B23K35/02
    • B23K11/3009B23K35/0205
    • A bi-metal resistance welding electrode has a dispersion strengthened copper tip and a high conductivity copper shank. The electrode is made by forming a tip member in two successive upsetting operations to produce a tip member having a coating of high conductivity copper covering substantially all of one end thereof. A solid, high conductivity copper, cylindrical billet is formed and brazed to the tip member at its coated end to form an extrusion blank. The extrusion blank is back extruded with the high conductivity copper material being worked substantially, while only partially back extruding the tip portion of the extrusion blank.
    • 双金属电阻焊电极具有分散强化铜尖和高导电性铜柄。 电极通过在两个连续的镦锻操作中形成尖端构件来制造,以产生具有基本上其一端的高导电性铜的涂层的尖端构件。 形成固体,高导电性的铜圆柱形坯料并在其涂覆端钎焊到尖端构件以形成挤出坯料。 挤出坯料被背面挤出,高导电性铜材料基本上被加工,而仅部分地后挤出挤出坯料的末端部分。
    • 9. 发明授权
    • Method of making a heat sink mounting
    • 散热器安装方法
    • US4149310A
    • 1979-04-17
    • US890300
    • 1978-03-27
    • Russell A. Nippert
    • Russell A. Nippert
    • H01L23/36B23K1/00H01L21/48H01L23/492H01R9/00H01R43/00
    • H01L21/4871H01L21/4878H01L23/492H01L2924/0002Y10T29/49117Y10T29/49861
    • A method of making a semi-conductor heat sink mounting includes two extrusion steps. Initially, a substantially cylindrical copper billet having an upper cylindrical locating portion of reduced diameter is formed. A steel ring is then brazed to the copper billet such that it surrounds the locating portion. The copper billet and the steel ring are then extruded to form a sink body portion, a pedestal portion extending upwardly from said body portion defining a disc receiving recess therein, and a resistance welding ridge surround the pedestal portion. A molybdenum disc is brazed into the disc receiving recess. A stem is then extruded downwardly from the body portion of the heat sink mounting as a substantially evenly distributed downward force is applied to the heat sink body portion, the pedestal portion and the molybdenum disc. This evenly distributed downward force prevents structural failure of the molybdenum disc by maintaining the disc in compression while the stem portion and the body portion of the heat sink mounting are worked to a full hard state.
    • {PG,1制造半导体散热器安装的方法包括两个挤压步骤。 最初,形成具有减小直径的上圆柱形定位部分的大致圆柱形的铜坯料。 然后将钢环钎焊到铜坯,使其围绕定位部分。 然后将铜坯和钢环挤出以形成下沉体部分,从所述主体部分向上延伸的基座部分,其中限定有盘容纳凹部,以及围绕基座部分的电阻焊接脊。 钼盘被钎焊到盘容纳槽中。 然后将杆从散热器安装件的主体部分向下挤出,因为基本上均匀分布的向下的力施加到散热器主体部分,基座部分和钼盘。 这种均匀分布的向下的力通过在将散热器安装件的杆部分和主体部分加工到完全硬化状态的同时保持盘的压缩来防止钼盘的结构故障。