Side milling of ruled surfaces: Optimum positioning of the milling cutter and calculation of interference

Abstract : Side milling is a process that enables machining time and thus costs, to be reduced. This type of machining is particularly well suited to ruled surfaces and all surfaces where one of the principal curvatures is very small compared to the tool radius and changes little oiler the entire surface. These surfaces must be treated with great care, as they are often on parts with high added value such as turbine blades, aircraft wings or helicoidal parts as used in fluid dynamics. We then need to calculate and minimise interference that may arise if the I ruled surface cannot be developed. Whereas machining is usually carried out by setting the tool according to a rule, we suggest a new setting of the tool allowing interference to be reduced considerably. The computation algorithms for this setting were developed so as to be used in real-time by CAD/CAM software. A comparative study of errors made with each type of setting is also presented. This shows a considerable reduction in errors when the setting we suggest is implemented.
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Jean-Max Redonnet, Walter Rubio, Gilles Dessein. Side milling of ruled surfaces: Optimum positioning of the milling cutter and calculation of interference. International Journal of Advanced Manufacturing Technology, Springer Verlag, 1998, 14 (7), pp.459-465. ⟨10.1007/BF01351391⟩. ⟨hal-01017618⟩

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