Research on modeling of grinding force in ultrasonic vibration–assisted grinding of 304 stainless steel materials.

Ultrasonic vibration–assisted grinding (UVAG) shows excellent performance in the machining of difficult-to-cut materials. Grinding force is one of the key factors affecting the quality of the machined surface, which has been investigated both experimentally and theoretically. However, the research on the modeling of the grinding force of the separated ultrasonic vibration–assisted grinding of metal difficult to cut materials is not in-depth for this process. It is concluded through experimental analysis that 304 stainless steel is removed by plastic removal under the action of tangential ultrasonic vibration–assisted grinding (TUVAG), and it is removed by brittle removal under the action of radial ultrasonic vibration–assisted grinding (RUVAG). On this basis, two kinds of prediction models of grinding force for ultrasonic vibration–assisted grinding are established. In addition, the relationship between grinding force and experimental parameters (spindle speed, feed rate, grinding depth, ultrasonic amplitude) was also revealed through models. Finally, the theoretical models are verified by experiments. The experimental results are consistent well with the models predictions. Therefore, these two theoretical models can be used to predict the grinding force well. [ABSTRACT FROM AUTHOR]