METHOD FOR MACHINING A WORKPIECE AND A TOOL FOR CARRYING OUT SAID METHOD

摘要

The invention relates to mechanical engineering, in particular to tools and a method for machining workpieces which have curved diffucult-to-reach surface areas. The inventive method consists in machining with the aid of cylindrical or conical end milling cutters, at least one part of the working surface of which is curved. Machining is carried out by the area of the curved surface, the parameters of which are selected according to the surface or a machined workpiece in such a way that the condition ?i=?max is fulfilled, wherein ?i is the actual deviation angle between the tool axis and a tangent plane to the machined surface of the work piece at a tangent point between the cutter and said machined surface of the workpiece and ?max is the maximum deviation angle between the tool axis and a tangent plane to the curved surface of the cutter working part. Apart from the above-mentioned condition, the used tool is characterised in that R>R_rot, wherein R is the curvature of the curved segment of the cutter working part, and R_rot is the maximum radius of rotation of the cutter working part. Said invention makes it possible to reduce the value of surface roughness and/or to increase the process efficiency.