Development of the Geometry and its Redesigning for a Special Shaped Milling Cutter

Abstract

This paper presents a shape design methodology to model and improve the geometry of a generic special shaped milling cutter. A dedicated customized tool design modeler is developed to verify the geometry of the cutter. This modeler helps in rendering the proposed three-dimensional parametric definition of the cutter in any CAD modeling environment by suitable translation. The modeled tool is analyzed using finite element analysis to study the cutting insert and the cutter body under transient dynamic load conditions while varying the rake angle of the insert and insert seat. The cutter is redesigned, based on the feedbacks obtained while performing the analysis for the optimum rake angle of the insert. Two different types of special shaped cutters are generated and shown here, from the same definition, to illustrate the generic definition of the special milling cutters.