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    • 5. 发明授权
    • Method for grinding bimetallic components
    • 双金属元件研磨方法
    • US5951378A
    • 1999-09-14
    • US908657
    • 1997-08-07
    • Bradley J. MillerRichard F. BuckleyDavid M. DuarteJohn HaganMianxue Wu
    • Bradley J. MillerRichard F. BuckleyDavid M. DuarteJohn HaganMianxue Wu
    • B24B15/02B24D3/10B24D7/18F02F7/00B24B1/00
    • F02F7/00B24B15/02B24D3/10B24D7/18
    • A method is provided for machining the fire deck of an engine block. The method includes providing a grinding wheel having an outer annular grinding element disposed concentrically or the wheel may be provided with an inner annular grinding element disposed concentrically inward of an outer element. The outer element comprises a single layer of relatively coarse diamond abrasive brazed on a metallic substrate, while the inner element comprises a single layer of relatively fine diamond abrasive brazed on a similar substrate. The outer grinding element and the inner element if utilized, is formed as a discrete unit individually fastened to a backing plate to facilitate independent height adjustment of the elements relative the backing plate. The method further comprises orienting the grinding wheel with its axis of rotation at a predetermined oblique angle a relative the fire deck. The wheel is then translated towards the engine block along a tool path parallel to the fire deck wherein the outer ring will engage the block for bulk material removal, followed by the inner ring, if utilized, which removes a smaller amount of material to apply the requisite surface finish to the fire deck.
    • 提供了一种用于加工发动机缸体的防火甲板的方法。 该方法包括提供具有同心设置的外部环形研磨元件的砂轮,或者轮可以设置有同心地设置在外部元件内部的内部环形研磨元件。 外部元件包括钎焊在金属基底上的单层相对粗糙的金刚石磨料,而内部元件包括钎焊在相似基底上的单层相对较细的金刚石磨料。 外部磨削元件和内部元件(如果使用的话)被形成为分离的单元,其单独地紧固到背板,以促进元件相对于背板的独立高度调节。 该方法还包括相对于防火甲板将砂轮以其旋转轴线以预定的倾斜角度a定向。 然后将车轮沿着平行于防火甲板的工具路径朝向发动机缸体平移,其中外圈将与块体接合以进行散装物料移除,接着是内圈(如果使用的话),其移除较少量的材料以施加 消防甲板上需要表面光洁度。
    • 7. 发明授权
    • Grinding wheel for grinding material from bimetallic surfaces
    • 用于从双金属表面研磨材料的砂轮
    • US06193593B1
    • 2001-02-27
    • US09351965
    • 1999-07-12
    • Bradley J. MillerRichard F. BuckleyDavid M. DuarteJohn HaganMianxue Wu
    • Bradley J. MillerRichard F. BuckleyDavid M. DuarteJohn HaganMianxue Wu
    • B24B2500
    • F02F7/00B24B15/02B24D3/10B24D7/18
    • A grinding wheel is provided for grinding the fire deck of an engine block. The grinding wheel, includes a first annular grinding element disposed concentrically with the wheel on a backing plate. The first annular grinding element includes a first abrasive component of either metal brazed single layer abrasive components or abrasive components comprising grain bonded in a porous matrix having about 55 to 80 volume percent interconnected porosity. The wheel preferably has a second annular grinding element disposed concentrically inward of the first annular grinding element. The first annular grinding element preferably comprises a single layer of relatively course diamond abrasive component brazed on a metallic substrate, while the second annular grinding element preferably comprises a single layer of relatively fine diamond abrasive components brazed on a similar substrate. Each of the first and second grinding elements are formed as a discrete units individually fastened to the backing plate to facilitate independent height adjustment of the annular grinding elements relative the backing plate. Fabrication of the first and second annular grinding elements as discrete members individually fastened to the backing plate serves to simplify both assembly of the wheel and height adjustment of the first and second annular grinding elements relative one another. Although one piece annular grinding elements are contemplated, each element may be fabricated as multi-part assemblies, such as two 180 degree or four 90 degree portions in order to prevent the accumulation of stresses and distortion during high speed testing.
    • 提供砂轮用于研磨发动机缸体的防火甲板。 砂轮包括与该轮同心地布置在背板上的第一环形研磨元件。 第一环形研磨元件包括金属钎焊单层磨料组分或磨料组分的第一研磨组分,其包含在具有约55至80体积%互连孔隙度的多孔基质中结合的颗粒。 轮优选地具有第一环形研磨元件的第二环形研磨元件,该第二环形研磨元件同心地设置在第一环形研磨元件的内部。 第一环形研磨元件优选地包括钎焊在金属基底上的相对过程的金刚石磨料组分的单层,而第二环形磨削元件优选地包含钎焊在类似衬底上的单层相对较细的金刚石磨料组分。 第一和第二研磨元件中的每一个被形成为单独地紧固到背板的分立单元,以促进环形研磨元件相对于背板的独立高度调节。 第一和第二环形研磨元件的制造作为单独紧固到背板的分立构件用于简化车轮的组装和第一和第二环形研磨元件相对于彼此的高度调节。 虽然可以考虑单件环形研磨元件,但是每个元件可以制造为多部件组件,例如两个180度或四度90度,以防止在高速测试期间应力和变形的累积。
    • 9. 发明授权
    • High speed grinding wheel
    • 高速砂轮
    • US06074278A
    • 2000-06-13
    • US16823
    • 1998-01-30
    • Mianxue WuLee A. CarmanLars Aspensjo
    • Mianxue WuLee A. CarmanLars Aspensjo
    • B24B1/00B24D3/00B24D3/14B24D5/04B24D5/06
    • B24B1/00B24D5/04
    • A method of obtaining superabrasive grinding performance from tools employing less expensive, non-superabrasive conventional abrasive grain involves operating the conventional abrasive tool at ultra high tangential contact speed, (that is at least about 125 m/s). Such ultra high operating speeds can be achieved with segmented abrasive grinding wheels having segments formed from vitreous or resin bonded particles of aluminum oxide, silicon oxide, iron oxide, molybdenum oxide, vanadium oxide, tungsten carbide, silicon carbide and the like. The abrasive segments can be cemented to the core of the tool with an adhesive such as epoxy cement. Abrasive segments can be made to a significantly greater depth than traditional superabrasive-bearing segments, and consequently, should provide long life as well as high performance. Additionally, conventional abrasive segments are easier to true and dress and to make into intricate profiles for grinding complex shaped work pieces.
    • 使用较便宜的非超级磨料传统磨料颗粒的工具获得超研磨性能的方法包括以超高切向接触速度(即至少约125m / s)操作常规研磨工具。 这种超高的操作速度可以通过具有由氧化铝,氧化硅,氧化铁,氧化钼,氧化钒,碳化钨,碳化硅等的玻璃质或树脂粘合颗粒形成的段的分段研磨砂轮来实现。 研磨部分可以用诸如环氧树脂粘合剂的粘合剂粘合到工具的芯上。 磨料段可以制成比传统的超级磨料承载段显着更大的深度,因此,应提供长寿命和高性能。 此外,传统的磨料段更容易实现并穿着并制成复杂的轮廓以研磨复杂形状的工件。