Abstract
Ball end milling is widely used in the manufacturing process of sculptured surface. In order to achieve high productivity and high accuracy with low costs, it is necessary to know the cutting properties before manufacturing. This research makes an effort on finding out the influence of shape of workpiece on machining error in ball end milling of cylindrical surface. At first, the machining errors in ball end milling of convex and concave cylindrical surfaces are analyzed theoretically, respectively. Secondly, the experiments are carried out to verify the theoretical results. At last, the appropriate cutting conditions are discussed basing on the calculated and measured values.