Diamond burnishing process stability

The problem on the shape forming trajectory motions stability under the diamond burnishing is considered. The dynamical equations on which analysis basis mechanisms and conditions of buckling failure are determined, are offered. To analyze the stability, the equation in variations about the balance point specified by the technological modes and an external constant force determining the indentation of the diamond point into the workpiece is considered. On this basis, a technique of the engineering system setting according to the dynamic parameters is offered. Based on that, we offer a method of setting up the machine based on dynamic parameters. It allows selecting rational values of the holddown pressure of the diamond point to the surface of the processed part, its geometry, tool settings and machine modes. It is shown that with the approach of the tool point to the workpiece, the system tends to lose stability. The buckling failure also depends on the radius of the diamond point and machine settings.