Curvature Matched Machining Methods Versus Commercial CAD Methods

This paper examines the benefits that are realized when five-axis curvature matched machining methods (CM) are used to machine typical automobile stamping die geometry. Three-axis ball end mill methods are used as the baseline of comparison for CM. Two doubly curved sample surfaces which represent an automotive stamping die are machined using: 1) three-axis ball end mill CAD methods, 2) CM methods developed by Brigham Young University and Contour Numerical Control, Inc. Results are presented and discussed.