An acoustic emission study of cutting bauxite refractory ceramics by abrasive water jets

  • A. W. Momber
  • R. S. Mohan
  • R. Kovacevic


This article discusses the material removal process in bauxite refractory ceramics cut by abrasive water jets. Several parameters of the process were changed during the experiments. The experiments were monitored online by the acoustic emission (AE) technique. It was found that AE signals are able to sense the material removal process as well as the machining performances very reliably. Unsteady material removal mode consisting of matrix removal and intergranular fracture was very well represented in the AE signals by an unsteady time dependent signal type characterized by burst emissions and a frequency domain signal associated with a twin-peak shape. The particular characteristics of the signal depend on the energy involved in the process.


abrasive water test acoustic emission analysis bauxite frequency analysis refractory 


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    A.W. Momber and R. Kovacevic, Principles of Abrasive Water Jet Machining, Springer-Verlag, 1998Google Scholar
  2. 2.
    A.W. Momber, I. Eusch, and R. Kovacevic, J. Mat. Sci., Vol 31, 1996, p 6485CrossRefGoogle Scholar
  3. 3.
    R. Kovacevic, H. Kwak, and R.S. Mohan, IME J. Eng. Manuf., Vol 212, 1998, p 45CrossRefGoogle Scholar
  4. 4.
    R.S. Mohan, A.W. Momber, and R. Kovacevic, Jet Cutting Technology, N.S. Allan, Ed., Mechanical Engineering Publications, 1994, p 649Google Scholar
  5. 5.
    R.S. Mohan, A.W. Momber, and R. Kovacevic, IME J. Eng. Manuf., in review, 1999Google Scholar
  6. 6.
    A.W. Momber, R.S. Mohan, and R. Kovacevic, Theoret. Appl. Fracture Mech., Vol 31, 1999, p 1CrossRefGoogle Scholar

Copyright information

© ASM International 1999

Authors and Affiliations

  • A. W. Momber
    • 1
  • R. S. Mohan
    • 2
  • R. Kovacevic
    • 3
  1. 1.WOMA Apparatebau GmbHDuisburgGermany
  2. 2.Department of Mechanical EngineeringThe University of TulsaTulsa
  3. 3.Department of Mechanical EngineeringSouthern Methodist UniversityDallas

Personalised recommendations