Optimisation of up- and down-milling processes for a corner feature

• Autorzy: Dotcheva M. , Millward H.
• Konferencja: Mechanics 2008 / International Scientific Conference (VI; 2008; Rzeszow, Poland)
• Języki publikacji: EN

Abstrakty

EN

This paper presents the specifics of the two types of end-milling, up- and down-milling, in the context of process planning of a finishing operation for machining complex pocket features. An optimisation mechanism is used for a pocket type of end-milling operation with the aim of comparing the results from up- and down-milling when the same process constraints have been applied. Two sets of cutting conditions have been generated and analysed for each type of end-milling. The first cutting condition has constant parameters for the entire tool path, derived from the worst case of cutting, representing the usual process planning approach The second set of cutting conditions represents the optimised process. The predicted results were verified through experiments. The optimised, measured cutting parameters, when machining the critical corner, accurately demonstrate the important changes in magnitude and direction of the radial cutting-tool deviation and surface error

Słowa kluczowe

EN

milling process; up-milling; down-milling; end milling; machining; optimization

PL

frezowanie; frezowanie przeciwbieżne; frezowanie współbieżne; obróbka skrawaniem; optymalizacja

• Wydawca: Oficyna Wydawnicza Politechniki Rzeszowskiej
• Czasopismo: Zeszyty Naukowe Politechniki Rzeszowskiej. Mechanika
• Rocznik: 2008
• Tom: z. 73 [253]
• Strony: 73--80
• Opis fizyczny: Bibliogr. 7 poz., tab., rys., wykr.

Twórcy

autor

Dotcheva M.

autor

Millward H.

• University of Wales Institute Cardiff (UWIC), Cardiff, United Kingdom

Bibliografia

• 1. D'Souza R.: Selecting an optimal Tool Sequence for 2.5 Pocket Machining while Considering Tool Holder Collisions. Journal of Intelligent Manufacturing, 17(3), 2006, 363-372.
• 2. Li Z.Z., Zheng M., Zheng L., Wu Z.J., Liu D.C.: A solid model-based milling process simulation and optimization system integrated with CAD/CAM. Journal of Materials Processing Technology, 138, 2003, 513-517.
• 3. Landon Y., Segonds P., Lascoumes P., Lagarrigue P.: Tool positioning error characterisation in milling. Int. Journal of Machine Tools and Manufacture, 2004, 44, 457-464.
• 4. Lee S.K., Ko S.L.: Improvement of the accuracy in the machining of a deep shoulder cut by end milling. Journal of Materials Processing Technology, 2001, 111, 244-249.
• 5. Xu A.P., Qu Y.X., Zhang D.W., Huang T.: Simulation and experimental investigation of the end milling process considering the cutter flexibility. International Journal of Machine Tools and Manufacture. 2003, 43, 283-292.
• 6. Dotcheva M., Millward H.: The application of tolerance analysis to the theoretical and experimental evaluation of a CNC corner-milling operation. Journal of Materials Processing Technology, 2005, 170, 284-297.
• 7. Childs T.H.C., Maekawa K., Obikawa T., Yamane. Y.: Metal Machining-Theory and Application. London: Arnold, 2000.