Study on cutting force calculation and optimization strategy of machining spiral bevel gear by using forming method

Abstract

While machining spiral bevel gear by forming method, the stability of cutting force acts a significant element affecting tool wear and machining performance. Based on the actual tooth-cutting situation, the calculation model of multi-blade cutting force is set up, and a new method to improve the machining precision of the tooth surface by using equal cutting force machining is put forward herein. Using the principle of forming method and the established machining model, the real-time tool-tip height is calculated, and the cutting area calculation formula is derived. The dynamic cutting force during multi-blade cutting is calculated by adopting the bevel-cutting model. Taking the cutting area at the most cutting force as the target cutting area, calculating equal cutting area is achieved by calculating the real-time feed rate, thereby achieving equal cutting force feed, and finally the calculation and improvement of cutting force during the machining of spiral bevel gears by the forming method are realized.