Abstract
Cutting speeds on the cutting edge of Ball-nose end mill vary from the bottom to the top of the cutting edge, thus the portion of the cutting edge that has a suitable cutting speed should be used in the finish milling process. This paper describes a procedure of generation of surface element groups that can be machined by the high performance portion of cutting edge in the finish milling process. For this purpose, performance values of cutting points on the cutting edge are proposed. The tool attitude to the surface element is evaluated by the ratio of the area machined by the high performance portion of cutting edge based on proposed performance values. The tool attitude having maximum area of the surface elements that can be machined with the high performance is derived, and a set of surface elements that can be machined by the high performance portion of cutting edge for the tool attitude is obtained as the surface element groups.
