Análisis del desgaste de un inserto cnmg 12 04 08 - pm 43 25 en operaciones de torneado mediante un modelo numérico y su validación.

Abstract

Abstract.-The present work shows the wear suffered by the CNMG 12 04 08 PM 43 25 insert after CNC turning operations. Describes the development of a two-dimensional numerical model of explicit dynamics in the ANSYS v18.1 computational package. The equations that govern this model are given by the Behavior Law of Materials proposed by Johnson-Cook and his Damage Law, in addition to the Orthogonal Shear Model. The numerical model begins with the CAD of the geometries of the insert and the workpiece, later the materials of each one and their properties are included. Then the cutting parameters, boundary conditions, simulation times and time intervals are established. Once these data are configured, the machining process is simulated. Finally, the results obtained from the simulations are validated with wear results obtained experimentally by Picho [11]. With the validated model, a variation is made in certain cutting parameters in order to find a relationship between the cutting speed and the wear suffered by the CNMG 12 04 08 PM 43 25 insert.