A finite element thermal model is devised to capture the transient temperatures in the workpiece in drilling. Experimental observations along with an inverse heat conduction procedure is utilized in identifying the strength of the heat fluxes from the three distinct regions of the drill (drill body, cutting lips and chisel edge) at various process conditions in both wet and dry conditions with coated and uncoated drills. The identified heat fluxes along with a calibration scheme are used in predicting the transient temperatures in the workpiece in both dry and wet conditions. The model demonstrates the ability to predict the temperatures within 20 percent of the measured temperature rise.
Issue Section:
Technical Papers
1.
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, F.
, and Eisenblatter
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, “Dry Cutting
,” CIRP Ann.
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, pp. 1
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Cselle
, T.
, and Barimani
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, 1995
, “Today’s Applications and Future Developments of Coatings for Drills and Rotating Cutting Tools
,” Surf. Coat. Technol.
, 76–77
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.3.
Kustas
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, Fehrehnbacher
, L.
, and Komanduri
, R.
, 1997
, “Nanocoatings on Cutting Tools for Dry Machining
,” CIRP Ann.
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, pp. 39
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.4.
Watanabe
, K.
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,” Bull. Jpn. Soc. Precis. Eng.
11
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.5.
Agapiou
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, 1990
, “On the Determination of Thermal Phenomena During Drilling-Part I: Analytical Models of Twist Drill Temperature Distributions
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Agapiou
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, and DeVries
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, 1990
, “On the Determination of Thermal Phenomena During Drilling-Part II: Comparison of Experimental and Analytical Twist Drill Temperatures
,” Int. J. Mach. Tools Manuf.
, 30
, No. 2
, pp. 217
–226
.7.
Fuh
, K.-H.
, Chen
, W.-C.
, and Liang
, P.-W.
, 1994
, “Temperature Rise in a Twist Drills with a Finite Element Approach
,” Int. Commun. Heat Mass Transfer
, 21
, No. 3
, pp. 345
–358
.8.
Chao
, B.
, and Trigger
, K.
, 1951
, “Cutting Temperatures and Metal Cutting Phenomena
,” Trans. ASME
, 73
, pp. 777
–793
.9.
DeVries
, M. F.
, and Wu
, S.
, 1970
, “Evaluations of the Effects of Design Variables on Drill Temperature Responses
,” ASME J. Eng. Ind.
, 92
, pp. 231
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.10.
Beck, J. V., Blackwell, B., and Jr., C. R. S. C., 1985, Inverse Heat Conduction Problems—Ill Posed Problems, Wiley-Interscience.
11.
Cook, R. D., Malkus, D. S., and Plesha, M. E., 1989, Concepts and Applications of Finite Element Analysis, John Wiley & Sons.
12.
Incropera, F. P., and DeWitt, D. P., 1996, Fundamentals of Heat and Mass Transfer, John Wiley and Sons, Fourth ed.
13.
Dorai
, G. A.
, and Tortorelli
, D. A.
, 1997
, “Transient Inverse Heat ConductionProblem Solutions via Newton’s Method
,” Int. J. Heat Mass Transf.
, 40
, No. 17
, pp. 4115
–4127
.14.
Jarny
, Y.
, Ozisik
, M.
, and Bardon
, J.
, 1991
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,” J. Heat Transfer
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, No. 11
, pp. 2911
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.15.
Chandrashekran, V., 1996, “A Model to Predict Three-Dimensional Cutting Force System for Drilling with Arbitrary Point Geometry,” PhD thesis, University of Illinois at Urbana-Champaign.
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by ASME
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