FORCE CHARACTERIZATION OF MICRO GRINDING IN ZIRCONIA

Open Access
Author:
Arneson, Henry
Graduate Program:
Mechanical Engineering
Degree:
Master of Science
Document Type:
Master Thesis
Date of Defense:
July 05, 2017
Committee Members:
  • Eric R. Marsh, Thesis Advisor
Keywords:
  • zirconia
  • grinding force
  • force characterization
  • micro grinding
Abstract:
An ultra-precision lathe is used to carry out micro surface grinding experiments in zirconia. The experiments are performed to explore the feasibility of characterizing the depth of cut with respect to the measured normal force. A design of experiments is performed to see which parameters affect the force. It is determined that the cutting length, lc, plays a large role in influencing the normal grinding force. Using this cutting length parameter, the data reveal a power regression relationship that has a good enough fit to predict the grinding force provided that the machine parameters are known. The regression formula is shown to be good enough to predict the DOC and the normal grinding force within 10-15%. This can be applied to industry not only check the depth of cuts, but to also identify if potential problems in the grinding process.