• Controlled wear of vitrified abrasive materials for precision grinding applications

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    • Keywords


      Bonding; aluminum oxide; cubic boron nitride; grinding wheel; wear; precision grinding

    • Abstract


      The study of bonding hard materials such as aluminium oxide and cubic boron nitride (cBN) and the nature of interfacial cohesion between these materials and glass is very important from the perspective of high precision grinding. Vitrified grinding wheels are typically used to remove large volumes of metal and to produce components with very high tolerances. It is expected that the same grinding wheel is used for both rough and finish machining operations. Therefore, the grinding wheel, and in particular its bonding system, is expected to react differently to a variety of machining operations. In order to maintain the integrity of the grinding wheel, the bonding system that is used to hold abrasive grains in place reacts differently to forces that are placed on individual bonding bridges. This paper examines the role of vitrification heat treatment on the development of strength between abrasive grains and bonding bridges, and the nature of fracture and wear in vitrified grinding wheels that are used for precision grinding applications.

    • Author Affiliations


      M J Jackson1 B Mills2 M P Hitchiner3

      1. Cavendish Laboratory, University of Cambridge, Madingley Road, Cambridge - CB3 0HE, UK
      2. Machining Research Group, Department of Engineering, University of Liverpool, P.O. Box 147, Liverpool - L69 3BX, UK
      3. Clarendon Laboratory, University of Oxford, Parks Road, Oxford - OX1 3PU, UK
    • Dates

  • Sadhana | News

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