Keywords:Milling Tool runout Cutting force control Piezoelectric actuator Tool runout and its effects is an important area of research within modelling, simulation, and control of milling forces. Tool runout causes tool cutting edges to experience uneven forces during milling. This fact also affects tool life and deteriorates workpiece surface quality. In this article a procedure, in order to diminish the effects of tool runout, is presented. The procedure is based on chip thickness modification by means of the fast correction of the tool feed rate. Dynamic feed rate modification is provided by superposing our own design of a fast feed system driven by a piezoelectric actuator to the conventional feed drive of the CNC machine tool. Previously, a model of the dynamic behaviour of the system was developed to analyze the influence of fast feed rate modification on cutting forces. The model incorporates the piezoelectric actuator response as well as the structural dynamics of the tool and the designed Fast Feed Drive System (FFDS). Simulated and experimental results presented in this paper show the effectiveness and benefits of this new tool runout correction procedure.

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III 4.2. Situaciones en las que se produce variación en las condiciones de corte ... 4.3. Planteamiento general del estudio .

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Normal 0 21 false false false ES X-NONE X-NONE MicrosoftInternetExplorer4 Cutting force simulation is a crucial tool for estimating the cutting tool behavior during machining. Due to the flexibility of the cutting process and the different variables involved, optimization in the milling process has become a key issue in order to achieve higher productivity and quality. To optimize the process planning, it is important to select an adequate machining strategy. A machining strategy provides a cutting mode for the tool during a particular machining operation, determining the axial and radial depth of cut and the recommended trajectories for the cutting tool. This paper presents an analysis and validation of different strategies for peripheral milling, being this performed under varying cutting conditions. For this purpose, a new cutting force model is used. 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