砂带磨削参数对材料去除深度的影响

为探究金属工件在砂带磨削加工中的材料去除机理，对砂带磨削系统简化后建立几何模型，并设置模型参数及运动建立了砂带磨削加工的离散元动态仿真。仿真结果表明:通过单因子试验研究不同的磨削参数对材料去除深度(material removal depth， MRD)的影响规律?通过正交试验得到不同磨削参数对MRD 的影响贡献率，其中砂带转速的影响最大、其次是砂带进给量，同时得到磨削参数的最优组合为工件进给量为0.5 mm，砂带转速为1 800 r/ min，工件速度为40 mm/ s，水平夹角为40°；最后通过实验验证仿真结果与结论的正确性。

Influence of abrasive belt grinding parameters on the depth of material removal

In order to explore the material removal mechanism of metal workpieces in abrasive belt grinding, a geometric model was established after simplifying the abrasive belt grinding system; and the model parameters and movement were set up to establish a discrete element dynamic simulation of abrasive belt grinding. Simulation results show that the influence of different grinding parameters on the MRD(material removal depth) was studied by single factor experiment; the contribution rate of different grinding parameters on MRD was obtained by orthogonal experiments, among which the influence of belt speed was the largest, followed by that of the feed rate of the abrasive belt. The optimal combination of grinding parameters is that the workpiece feed is 0.5 mm, the belt’s rotation speed is 1 800 r/min, the workpiece speed is 40 mm/s, and the horizontal angle is 40°. Finally, the simulation results and conclusions were verified by experiments.