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20 Taxiarchis Belis and Aristomenis Antodiadis Hobbing and Computational Interpretation of Experimental Results. ASME Journal of Manufacturing Science and Engineering, 124, 4, 784-791, (2002). 9. A n t o n i a d i s A., V i d a k i s N., B i l a l i s N., Fatique Fracture Investigation of Cemented Carbide Tools in Gear Hobbing. Part 2: The Effect of Cutting Parameters on the Level of Tool Stresses – A Quantitative Parametric Analysis. ASME Journal of Manufacturing Science and Engineering, 124, 4, 792-798, (2002). 10. B o u z a k i s K., A n t o n i a d i s A., Optimizing of Tangential Tool Shift in Gear Hobbing, Annals of the CIRP, 44, 1 (1995). MODEL PENTRU EVALUAREA UZURII DINȚILOR FREZELOR DE DANTURAT PE BAZA DETERMINĂRII AȘCHIILOR 3D (Rezumat) Frezarea danturii este un procedeu de prelucrare larg răspândit în industrie, în special pentru producția de serie a danturilor exterioare. În acest proces, modul diferit de formare a așchiei în fiecare poziție de generare a profilului duce la uzura neuniformă a dinților frezei. Lucrarea prezintă o nouă metodă de determinare a parametrilor uzurii, frezelor pe baza așchiilor 3D. Caracteristicile așchiilor 3D au fost stabilite pornind de la un model existent de uzură, în vederea determinării cu mai multă acuratețe a distribuției uzurii la nivelul dinților frezei.
BULETINUL INSTITUTULUI POLITEHNIC DIN IAŞI Publicat de Universitatea Tehnică „Gheorghe Asachi” din Iaşi Tomul LVI (LX), Fasc. 2, 2010 Secţia CONSTRUCŢII DE MAŞINI CAD-BASED CALCULATION OF CUTTING FORCE COMPONENTS IN GEAR HOBBING BY NIKOLAOS TAPOGLOU and ARISTOMENIS ANTONIADIS Abstract. One of the most commonly used gear manufacturing process especially for external is gear hobbing. The optimisation of the process of gear hobbing is of great importance in the modern industry. This paper presents a novel simulation program called HOB3D that can simulate the cutting process in a commercial CAD environment, thus producing results with the optimal precision. The outputs of the program include the 3D chip and gap geometry as well as the developing cutting forces which were validated using experiments. Key words: gear hobbing, cutting forces, simulation. 1. Introduction One of the key components of any torque transmission system is high precision involute gears. Gears can be constructed with a wide variety of methods; Gear hobbing is the one mainly used in the modern industry. Gear hobbing kinematics consists of three relative motions between the cutting tool and the workpiece. This makes it difficult to simulate with analytical models. HOB3D is a novel simulation program based on a commercial CAD environment which can simulate the cutting process and provide results including 3D solid chips and gaps as well as predicting the developing cutting forces. 2. State of the Art The research conducted in the area of gear hobbing can be divided into two categories: gear hobbing process simulation and wear prediction. In the first field a series of simulation models have been developed using CAD [1],[2], FEA [3] or analytical [4]-[7] based models. Experiment based models [8], [9]
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