A Study of Cutter Path in High Speed Rough Milling of Pockets. Part II: Modelling and Performance Evaluation

• Autorzy: Giorleo L. , Giuliani M. , Pittala G. M. , Ruberto M.
• Języki publikacji: EN

Abstrakty

EN

Large aeronautical parts, such as wing ribs, involve a volume of metal removed up to 90-95 % of initial weight, particularly pocket milling takes 60-70% of the total cycle time, so this operation plays an important role in the cost definition of the final product. Since typical materials in aircraft frames are aluminium alloys, High Speed Machining technology is convenient and more frequently used, also for rough operation. Using modern production system cutting velocity and feedrate are relatively high also in rough machining. It is important to determine cutter path and position vs time law in order to allow the lowest machining time and to control machine dynamic conditions. In this paper linear trajectory and cubic spline trajectory are compared in terms of execution time during high speed rough machining of pockets; in this part the comparison is numerical. The results indicate time saving using spline interpolation and the influence of feedrate and acceleration profile about above cutter paths. This is important information to select best cut condition and machining performance.

Słowa kluczowe

EN

high speed; rough milling; cutter path; pockets; spline interpolation

• Wydawca: Wydawnictwo Wrocławskiej Rady FSNT NOT
• Czasopismo: Journal of Machine Engineering
• Rocznik: 2007
• Tom: Vol. 7, No. 2
• Strony: 27--40
• Opis fizyczny: Bibliogr. 8 poz., rys., tab.

Twórcy

autor

Giorleo L.

• Dipartimento di Meccanica, Politecnico di Milano, Via Bonardi 9, 20133, Milan, Italy

autor

Giuliani M.

• Laboratorio MUSP, Strada Statale 10 Localita Le Mose, 29100 Piacenza, Italy

autor

Pittala G. M.

• Dipartimento di Meccanica, Politecnico di Milano, Via Bonardi 9, 20133, Milan, Italy

autor

Ruberto M.

• Dipartimento di Ingegneria dei Materiali e della Produzione, Facolta di Ingegneria, Universita degli Studi di Napoli" Federico II", P.le Tecchio, 80, 80125 Nalpes, Italy

Bibliografia

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