Rotary Ultrasonic Machining of Alumina Dental Ceramics: A Preliminary Experimental Study on Surface and Subsurface Damages

  • Yasser Ahmed
    Department of Industrial and Systems Engineering, North Carolina Agricultural & Technical State University, Greensboro, NC 27411
  • W. L. Cong
    Department of Industrial and Manufacturing Systems Engineering, Kansas State University, Manhattan, KS 66506
  • Matthew R. Stanco
    Department of Industrial and Systems Engineering, North Carolina Agricultural & Technical State University, Greensboro, NC 27411
  • Z. G. Xu
    Department of Mechanical Engineering, North Carolina Agricultural & Technical State University, Greensboro, NC 27411
  • Z. J. Pei
    Department of Industrial and Manufacturing Systems Engineering, Kansas State University, Manhattan, KS 66506
  • C. Treadwell
    Sonic-Mill, 7500 Bluewater Road N.W., Albuquerque, NM 87121
  • Y. L. Zhu
    New Breed Inc., 4043 Piedmont Parkway, High Point, NC 27265
  • Z. C. Li
    Department of Industrial and Systems Engineering, North Carolina Agricultural & Technical State University, Greensboro, NC 27411 e-mail:

Description

<jats:p>This paper presents a preliminary study about effects of ultrasonic vibration on machined surface and subsurface damages in rotary ultrasonic machining (RUM). The surface and subsurface damages are compared for machining of dental ceramics (Al2O3) with and without ultrasonic vibration. The surface chippings are evaluated and the subsurface cracks are observed under scanning electron microscope (SEM).</jats:p>

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