Abstract: A grinding wheel according to the present invention includes cubic boron nitride (cBN) or other abrasive particles such as diamond secured to a substrate by an electroplated, electroless plated or brazed layer of nickel, chrome or nickel or chrome based alloy, a first antioxidation layer of, for example, vapor deposited titanium aluminum nitride (TiAIN) and a second hard lubricant layer of, for example, vapor deposited molybdenum disulfide (MoS2), diamond graphite, tungsten carbide carbon, carbon nitride, titanium carbide carbon or titanium carbon nitride. The hard lubricant layer acts as a release agent and lubricant which reduces clogging of the wheel by lowering adhesion and facilitating the release of ground material from the wheel thereby providing improved grinding performance.

Abstract: A grinding wheel according to the present invention includes cubic boron nitride (cBN) or other abrasive particles such as diamond secured to a substrate by an electroplated, electroless plated or brazed layer of nickel, chrome or nickel or chrome based alloy, a first antioxidation layer of, for example, vapor deposited titanium aluminum nitride (TiAlN) and a second hard lubricant layer of, for example, vapor deposited molybdenum disulfide (MOS2), diamond graphite, tungsten carbide carbon, carbon nitride or titanium carbon nitride. The hard lubricant layer acts as a release agent and lubricant which reduces clogging of the wheel by lowering adhesion and facilitating the release of ground material from the wheel thereby providing improved grinding performance.

Abstract: Grinding and dressing wheel support and release apparatus adapted to maintain a high degree of accuracy and adapted for quick change of a grinding wheel and dressing roll. A grinding wheel unit is maintained between two axially aligned shafts for rotation therewith. One shaft is axially movable to permit ease of replacement of the grinding wheel unit. Mechanism is provided for sensing the axial position of the axially movable shaft and for control of the axial position of the axially movable shaft. A dressing roll structure has a dressing roll engageable with the grinding wheel. The dressing roll structure preferably has the same type of shaft support as the grinding wheel structure. Mechanism is provided for automatic removal and replacement of the grinding wheel and/or dressing roll. Mechanism is provided for automatically maintaining the dressing roll in engagement with the grinding wheel for continuous dressing of the grinding wheel.

Abstract: The hysteresis of an inductive proximity probe is reduced by repeatedly switching off and on a feedback network in the probe which causes the hysteresis. Such a probe can be used in a fixturing device for the grinding of dovetails on gas turbine engine blades.