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Surface grinding patent

Aug 26, 2021

CA-1307116-C chemical patent summary

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  • surface grinding patent
    surface grinding patent

    Jan 17, 1997 More particularly, the present invention relates to a surface grinding method and apparatus for a semiconductor wafer, a hard disk, etc. 2. Description of the Related Art . A surface grinding apparatus grinds the surface of a wafer sliced by a slicing machine in an after-processing

  • surface grinding patent
    surface grinding patent

    Automatic grinding apparatus to control uniform specimen thicknesses. Patent Bryner, J S. This invention is directed to a new and improved grinding apparatus comprisng: (1) a movable grinding surface; (2) a specimen holder; (3) a dislacing means for moving the holder and/or grinding surface toward one another; and (4) at least three means for

  • surface grinding patent
    surface grinding patent

    What is claimed as new and desired to be protected by Letters Patent is set forth in the appended claims. 1. A surface grinding machine, comprising a rigid transmission housing having a tubular narrowing region; a grinding disc arranged movable on said transmission housing; a rotating drive which oscillatingly drives said grinding disc and includes a motor formed as an electric motor; an

  • surface grinding patent
    surface grinding patent

    Jan 01, 1998 Patent Number(s): 5762660 ... to contact of the tool with the grinding surface with this displacement being monitored so that any variation in the grinding of the cutting surface such as caused by crystal orientation or tool thickness may be compensated for during the grinding operation to assure the attainment of the desired cutting tool face

  • surface grinding patent
    surface grinding patent

    Grinding wheel and cleaning method for grinding chamber. Patent number: 9731400. Abstract: A grinding wheel includes an annular base and a plurality of abrasive members fixed to the lower surface of the base and arranged annularly. The base has a plurality of through holes for discharging a

  • surface grinding patent
    surface grinding patent

    Many patents have been devoted to developing medical nanometer zirconia ceramic grinding techniques that can significantly improve both workpiece surface integrity and grinding quality. Among these patents is a process for preparing ceramic dental implants with a surface for improving osseo-integration by sand abrasive finishing under a jet

  • surface grinding patent
    surface grinding patent

    Dec 17, 1993 A grinding tool bit is formed of a disk-shaped base member (1) with a central through opening (6) for attaching the base member to a drive spindle of a machine tool. The base member (1) is covered with individual cutting elements (4) at the radially outer circumferential surface (2) and in the side faces (3) adjacent the outer circumferential surface (2)

  • surface grinding patent
    surface grinding patent

    Sep 28, 2011 JP-5546518-B2 chemical patent summary. ... Adhesive tape for grinding brittle wafer back surface and grinding method using the same. Cite. Download. Patent: JP-5546518-B2: Dates: Grant . 2014/07/09. Priority . 2011/09/28. This web page summarizes information in PubChem about patent JP-5546518-B2. This includes chemicals mentioned, as reported

  • surface grinding patent
    surface grinding patent

    A super-abrasive grinding wheel includes a core and a super-abrasive grain layer provided on a surface of the core, the super-abrasive grain layer including diamond abrasive grains and CBN abrasive grains, the diamond abrasive grains and the CBN abrasive grains being fixed to the core in a single layer by a binder. The diamond abrasive grains and the CBN abrasive grains have projecting tips

  • surface grinding patent
    surface grinding patent

    The diamond wheel of the surface grinding machine according to the present invention has a Young's modulus of (10-15) 10 4 kgf/cm 2. The grain size ranges from #2,000 (6 μm) to #4,000 (2.5 μm). This grain size is one normally used for surface grinding. The concentration is any one between 50-200

  • surface grinding patent
    surface grinding patent

    United States Patent 4700510 ... In the surface grinding machine, a grinding wheel G is fixed to the lower end of spindle assembly 30, and as shown in FIG. 1, a rotary table 17 is rotatably mounted on the bed 10 under the spindle stock 12 to support thereon a workpiece W

  • surface grinding patent
    surface grinding patent

    It is known in the art to traverse either a fixed grinding stone or a grinding wheel across the face of a commutator or slip ring of an armature while the armature remains in its normal bearings and spins in the bearings while the surface is dressed. Several patents have employed grinding wheels driven by belts from remote motors, such as

  • surface grinding patent
    surface grinding patent

    The second invention is a dressing method in a vertical duplex-head surface grinding machine comprising a pair of upper and lower grinding stones rotatable on a vertical axis, a work holding jig capable to hold a work having integrally a disc portion and a hub portion in a set location and rotatable on its vertical axis, and a clamping device

  • surface grinding patent
    surface grinding patent

    A surface grinding machine capable of grinding the end surface of a workpiece (10) without leaving any unground protruding portion at the centre thereof by imparting rotation on its own axis and

  • surface grinding patent
    surface grinding patent

    US4485594A - Surface grinding machine - Google Patents. A surface grinding machine capable of being computer operated and having a multi-function capability for performing conventional slot and

  • surface grinding patent
    surface grinding patent

    When the plane at which the planar surface to be formed is tangent to the abrasive belt, the movement of the workpiece toward the belt is halted so that the desired planar surface is formed on the

  • surface grinding patent
    surface grinding patent

    The present invention provides a surface grinding method and apparatus for achieving a thin plate work such as a semiconductor wafer with high flatness, high accuracy and certainty and the

  • surface grinding patent
    surface grinding patent

    A process for surface grinding of a flange surface of a wheel hub onto which a brake disk can be mounted for a motor vehicle includes the mounting of the wheel bearing on the wheel hub before the grinding operation. An outer bearing ring is then clamped on a stationary support and, as the wheel hub is rotated, the surfaces ground by a cup-shaped grinding disk rotated about an axis parallel to

  • surface grinding patent
    surface grinding patent

    CA-1307116-C chemical patent summary

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