Stable Milling of Thin-Walled Parts with Variable Dynamics
نویسندگان
چکیده
The milling of thin-walled parts can become a seriously complex problem. In this work, the problem of the variable dynamics of a test part has been solved through the calculation of 3D stability lobes which add a third dimension with the tool position along the part, to the traditional depth of cut-spindle speed pair. First, the dynamics of a test part in several machining steps have been calculated through FEM analysis and validated through experimental tests. Then, the stable conditions have been calculated with a one-dimensional and a three-dimensional stability model for the thin walls and the thin floor respectively. Finally, several milling tests have been performed in order to validate the predictions made by the model.
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