Laser-assisted machining (LAM) of magnesia-partially-stabilized zirconia (PSZ) is investigated to determine the effect of heating on machinability, as determined by tool wear, cutting energy, surface integrity, and material removal mechanisms. It is found that PSZ can be successfully machined with a polycrystalline cubic boron nitride tool and that tool life increases with material removal temperature up to a maximum of 121 minutes. The benefit of laser-assistance in material removal is also demonstrated by the 2.5 fold decrease in the specific cutting energy with increased temperature. It is shown surface roughness varies significantly with tool wear with little dependence on cutting temperature unlike in LAM of other ceramics. Evidence of mixed brittle and ductile material removal mechanisms is presented, and the optimum condition within the test matrix is established.
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February 2004
Technical Papers
Laser-Assisted Machining of Magnesia-Partially-Stabilized Zirconia
Frank E. Pfefferkorn,
Frank E. Pfefferkorn
School of Mechanical Engineering, Purdue University, West Lafayette, IN 47907-1288
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Yung C. Shin,
Yung C. Shin
School of Mechanical Engineering, Purdue University, West Lafayette, IN 47907-1288
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Yinggang Tian,
Yinggang Tian
School of Mechanical Engineering, Purdue University, West Lafayette, IN 47907-1288
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Frank P. Incropera
Frank P. Incropera
College of Engineering, University of Notre Dame, Notre Dame, IN 46556
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Frank E. Pfefferkorn
School of Mechanical Engineering, Purdue University, West Lafayette, IN 47907-1288
Yung C. Shin
School of Mechanical Engineering, Purdue University, West Lafayette, IN 47907-1288
Yinggang Tian
School of Mechanical Engineering, Purdue University, West Lafayette, IN 47907-1288
Frank P. Incropera
College of Engineering, University of Notre Dame, Notre Dame, IN 46556
Contributed by the Manufacturing Engineering Division for publication in the JOURNAL OF MANUFACTURING SCIENCE AND ENGINEERING. Manuscript received July 2003. Associate Editor: Y. Lawrence Yao
J. Manuf. Sci. Eng. Feb 2004, 126(1): 42-51 (10 pages)
Published Online: March 18, 2004
Article history
Received:
July 1, 2003
Online:
March 18, 2004
Citation
Pfefferkorn , F. E., Shin , Y. C., Tian, Y., and Incropera, F. P. (March 18, 2004). "Laser-Assisted Machining of Magnesia-Partially-Stabilized Zirconia ." ASME. J. Manuf. Sci. Eng. February 2004; 126(1): 42–51. https://doi.org/10.1115/1.1644542
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