This paper presents an approach to machine steam turbine blades in 5-axis NC. By means of using a disc cutter with a concave end, curvature fitting is used to machine the convex and concave surface.
The advantages of the method are that the tooth profile of the workpiece is not necessary and the width and radius of the disc cutter can also be given at the same time.
该方法具有以下优点:无需知道工件齿形,可同时获得刀具宽度、半径等参数。
Parametric values on the contact lines of disc cutter blade and the side surface cogwheel, disc cutter blade and gear root surface are determined by using vector method.
Through the research of a processing example, the article gives a new processing method and a NC programming method in changeable disc cutter body processing with machining center.
This paper presents a new method in which the disc cutter always has the same curvature and the curvature differential with that of the surfaces being machined.