Jixie chuandong (Mar 2022)
Research on Visualization of Cylindrical Gear Hobbing Cutting Force and the Influence of Cutting Parameter on Hobbing Cutting Force
Abstract
Hobbing is one of the most important gear machining process，forming process of which is complicated and involves a large number of cutting parameters. In order to quantify the influence of machining parameters on the cutting force in hobbing process，a method for predicting the cutting force of gear hobbing based on three-dimensional （3D） geometric simulation is studied. The relative position and motion relationship between hob and workpiece are determined according to the geometric parameters and cutting parameters of hob and workpiece， the 3D simulation of hobbing process is realized in CAD environment，and the 3D model of undeformed chips is obtained. According to the selected cutting force model，the instantaneous cutting force of a single cutting edge is calculated by using the cross-section size of undeformed chips model，and the overall cutting force process of hobbing is obtained. The influence of different cutting parameter on hobbing cutting force is analyzed quantitatively. The predictive model helps to optimize the design of the gear hobbing process to improve the quality and efficiency of the machining and reduce the cost.
