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Journal of Achievements in Materials and Manufacturing Engineering

Tytuł artykułu

Multi-scale modelling of surface topography in single-point diamond turning

Autorzy Lee, W. B.  Cheung, C. F.  To, S. 
Treść / Zawartość
Warianty tytułu
Języki publikacji EN
EN Purpose: A multi-scale model is proposed to explain the effect of material induced vibration and the quantitative relation between cutting force and the surface quality from dislocations, grain orientations, cutting tools, machine tools used in the simulation of the nano-3D surface topology in single-point diamond turning. Design/methodology/approach: The model-based simulation system composes of several model elements which include a microplasticity model, a dynamic model and an enhanced surface topography model. Findings: This research is the first attempt in which the microplasticity theory, theory of system dynamics and machining theory are integrated to address the materials problems encountered in ultra-precision machining. Indeed, this is a new attempt to link up the microplasticity theory to macro-mechanisms in metal cutting. The successful development of the model-based system allows the prediction of the magnitude and the effect of periodic fluctuation of micro-cutting force and its effect on the nano-surface generation in ultra-precision diamond turning of crystalline materials. It also helps to explain quantitatively the additional roughness caused by the variation of the crystallographic properties of the workpiece, and leads us to a better understanding of the further improvement of the performance of ultra-precision machines. Research limitations/implications: The multi-scale model brings together knowledge from various disciplines to link up physical phenomenon occurring at different length scales to explain successfully the surface generation in single-point diamond turning of crystalline materials. Originality/value: This model offers a new direction of research in ultra-precision machining.
Słowa kluczowe
PL techniki numeryczne   model analizy wieloskalowej   odkształcenie plastyczne w skali mezo   dynamika zespołu tnącego   topografia powierzchni   toczenie precyzyjne   toczenie diamentowe  
EN numerical techniques   multi-scale model   mesoplasticity   cutting system dynamics   surface topography   single point diamond turning  
Wydawca International OCSCO World Press
Czasopismo Journal of Achievements in Materials and Manufacturing Engineering
Rocznik 2007
Tom Vol. 24, nr 1
Strony 260--266
Opis fizyczny Bibliogr. 17 poz., fot., rys.
autor Lee, W. B.
autor Cheung, C. F.
autor To, S.
  • Advanced Manufacturing Technology Research Centre, The Hong Kong Polytechnic University, Kowloon, Hong Kong,
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[3] W.B. Lee, C.F. Cheung, S. To, A microplasticity analysis of micro-cutting force variation in ultra-precision diamond turning, Trans. of ASME, Journal of Manufacturing Science and Engineering 124/2 (2002) 170-177.
[4] W.B. Lee, C.F. Cheung, S. To, Friction induced fluctuation of cutting forces in diamond turning of aluminium single crystals, Proceedings of The Institute of Mechanical Engineers Part B Journal of Engineering Manufacture 217/B5 (2003) 615-631.
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[6] W.B. Lee, K.C. Chan, A criterion for the formation of shear band angles in f.c.c. metals, Acta Metallurgica et Materialia. 39/3 (1991) 411-417.
[7] P.A. McKeown, Structural design for high precision measurement and control, SPIE 153 (1978) 101-105.
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[12] S.M. Pandit, Characteristic shape and wavelength decomposition of surface in machining, Annals of the CIRP 30 (1981) 487-492.
[13] S.M. Pandit, S. Revach, A data dependent systems approach to dynamics of surface generation in turning, Journal of Engineering for Industry 103 (1981) 437-445.
[14] S.M. Pandit, S.M. Wu, Time series and system analysis with applications, New York, Wiley, 1983.
[15] C.F. Cheung, W.B. Lee, A theoretical and experimental investigation of surface roughness formation in ultra-precision diamond turning, International Journal of Machine Tools and Manufacture 40/7 (2000) 979-1002.
[16] C.F. Cheung, W.B. Lee, Modelling and simulation of surface topography in ultra-precision diamond turning, Proceedings of The Institute of Mechanical Engineers Part B Journal of Engineering Manufacture 214/B6 (2000) 463-480.
[17] C.F. Cheung, W.B. Lee, Prediction of the effect of tool interference on surface generation in single-point diamond turning, International Journal of Advanced Manufacturing Technology 19/4 (2002) 245-252.
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