Results of grinding zirconia using wheels with fine grain size SiC and dense vitreous bond are presented. Wheel wear results demonstrated that this type of SiC wheel could grind fully and partially stabilized zirconia (PSZ) very effectively. X-ray diffraction was used to analyze the percentage of monoclinic phase in the PSZ base material, ground surface, and debris. As expected, due to the stress- and temperature-induced phase transformation during grinding, the percentage of monoclinic phase on the ground surface was increased relative to the base material. However, X-ray diffraction showed no monoclinic phase in the PSZ debris. This suggests that, during grinding, the low thermal conductivity of zirconia and SiC, compared to that of diamond, facilitates heat retention in the chip and softens the work-material. This makes the efficient grinding of PSZ possible. Grinding temperature measurement results supported this hypothesis.

Issue Section:
Technical Papers
Keywords:
grinding, phase transformations, mechanical engineering
Topics:
Grinding, Wheels
1.
Mandler, W. F., Yonushonis, T. M., Shinosawa, K., 1997, “Ceramic Successes in Diesel Engines,” 6th International Symposia on Ceramic Materials and Components for Engines, Arita-Machi, Japan, Oct. 19–23.
2.
Shih
,
A. J.
, and
Akemon
,
J. L.
,
2001
, “
Wear of the Blade Diamond Tools in Truing Vitreous Bond Grinding Wheels. Part I—Wear Measurement and Results
,”
Wear
,
250
, pp.
587
–
592
.
3.
Shih
,
A. J.
,
Akemon
,
J. L.
, and
Clark
,
W. I.
,
2001
, “
Wear of the Blade Diamond Tools in Truing Vitreous Bond Grinding Wheels. Part II—Truing and Grinding Forces and Wear Mechanism
,”
Wear
,
250
, pp.
593
–
603
.
4.
Shih, A. J., and Yonushonis, T. M., 2000, “High Infeed Rate Method for Grinding Ceramic Workpiece with Silicon Carbide Grinding Wheels,” US Patent Number 6,030,277.
5.
Malkin, S., 1989, Grinding Technology, Theory and Application of Machining with Abrasives, Ellis Horwood, p. 26.
6.
Shih
,
A. J.
,
Yonushonis
,
T. M.
,
Grant
,
M. B.
,
Morris
,
T. O.
, and
McSpadden
,
S. B.
, 1998, “Vitreous Bond CBN Wheel for High Speed Grinding of Zirconia and M2 Steel,” Transaction of 26th NAMRC, pp. 195–200.
7.
Shih
,
A. J.
,
2000
, “
An Experimental Investigation of Rotary Truing and Dressing of Vitreous Bond Wheels for Ceramic Grinding
,”
Int. J. Mach. Tools Manuf.
,
40
, pp.
1755
–
1774
.
8.
Hwang
,
T. W.
,
Evans
,
C. J.
, and
Malkin
,
S.
,
1999
, “
Size Effect for Specific Energy in Grinding of Silicon Nitride
,”
Wear
,
225
, pp.
862
–
867
.
9.
Malkin
,
S.
, and
Hwang
,
T. W.
,
1996
, “
Grinding Mechanisms for Ceramics
,”
CIRP Ann.
,
45
(
2
), pp.
569
–
580
.
10.
Bifano
,
T. G.
,
Dow
,
T. A.
, and
Scattergood
,
R. O.
,
1991
, “
Ductile-Regime Grinding: A New Technology for Machining Brittle Materials
,”
ASME J. Eng. Ind.
,
113
, pp.
184
–
189
.
11.
Stevens, R., 1986, Zirconia and Zirconia Ceramics, Magnesium Elektron Publication No. 113, Magnesium Elektron, Ltd., Manchester, U.K.
12.
Garvie
,
R. C.
, and
Nicholoson
,
P. S.
,
1972
, “
Phase Analysis in Zirconia Systems
,”
J. Am. Ceram. Soc.
,
55
, pp.
303
–
305
.
13.
Guo
,
C.
, and
Malkin
,
S.
,
1995
, “
Analysis of Energy Partition in Grinding
,”
ASME J. Eng. Ind.
,
117
, pp.
55
–
61
.
14.
Ju
,
Y.
,
Farris
,
T. N.
, and
Chandrasekar
,
S.
,
1998
, “
Theoretical Analysis of Heat Partition and Temperature in Grinding
,”
ASME J. Tribol.
,
120
, pp.
789
–
794
.
15.
Curry, A. C., Shih, A. J., Kong, J., Scattergood, R. O., and McSpadden, S. B., “
Grinding Temperature Measurements in MgO-PSZ Using Infrared Spectrometry,” J. Am. Ceram. Soc., in press.
16.
Kohli
,
S.
,
Guo
,
C.
, and
Malkin
,
S.
,
1995
, “
Energy Partition to the Workpiece for Grinding with Aluminum Oxide and CBN Abrasive Wheels
,”
ASME J. Eng. Ind.
,
117
, pp.
160
–
168
.
17.
Guo
,
C.
,
Wu
,
Y.
,
Varghese
,
V.
, and
Malkin
,
S.
,
1999
, “
Temperatures and Energy Partition for Grinding With Vitrified CBN Wheels
,”
CIRP Ann.
,
49
(
1
), pp.
247
–
250
.
18.
Zhu
,
B.
,
Guo
,
C.
, and
Malkin
,
S.
,
1995
, “
Energy Partition to the Workpiece for Grinding of Ceramics
,”
CIRP Ann.
,
44
(
1
), pp.
267
–
271
.
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