Background: Problems, such as severe hardening and poor processing quality, are present in
the cutting process of difficult-to-machine materials.
Objective: The aim of this study was to investigate and optimize the machining parameters of 630 stainless
steel by using an independently designed 28-KHz double-excitation elliptical vibration cutting process.
Methods: Using the AdvantEdge platform and response surface method, the effects of the cutting speed
v, feed rate f, and cutting depth ap on the cutting forces Fx and Fy in the feed and depth directions, respectively,
and cutting temperature T were analyzed. Then, regression prediction models with three response
variables for each of the three independent variables were established, and the best cutting parameter
combination was optimized. Finally, the results were obtained and validated through physical
Results: Results show that the error of the experimental results relative to the predicted ones under the
optimized cutting parameter combination is less than 9%.
Conclusion: Based on the response surface method, the optimal cutting parameters are obtained, and the
cutting force and cutting temperature are at a lower level. The findings indicate the feasibility of the optimized
machining parameters and provide a reference for the selection of cutting parameters and the
publishing of patents, and when ultrasonic vibration is used, for cutting difficult-to-machine materials.