Study of the contact forces between workpiece and fixture using dynamic analysis

Abstract

Abstract In the machining process, the workpieces are installed in machining devices in order to establish a strictly determined position with the cutting tool or its trajectory. During the cutting process, the weight of the workpiece, the forces and moments of inertia, cutting forces and moments, clamping forces, the heat released during the cutting process determine the contact forces between the locators and the workpiece. The magnitude of these forces is important because too large value can destroy the surface of the workpiece, and a too small value can cause the workpiece to slip on the locators or even the loss of the contact with the workpiece. Both situations must be avoided. In the paper is presented a study regarding the determination of the magnitude of the contact forces in dynamic condition using dynamic analysis realized with a CAE software.