The spindle barrel finishing is commonly used to improve the surface integrity of the important parts of the high-end equipment while it is difficult to provide enough test artifacts for the traditional trial and error experiment to obtain the desirable processing technology. The EDEM simulation of the spindle barrel finishing can provide effective help for the process design. In this paper, simulations and experiments are conducted based on the identical apparatus and conditions to facilitate the comparison and validation between each other. The parameters required in the simulation are determined based on reliable experiments. In order to explain the interaction of ceramic media and metal workpieces in the finishing barrel, firstly, the depth of material wear on the surface of the workpiece is obtained, and the amount of material removal is calculated in conjunction with Archard wear theory based on the Hertz-Mindlin with Archard wear model in EDEM. The relationship between the amount of material removed and the time and position of workpiece clamping is quantified. It is in good agreement with the experimental results; the maximum deviation is 20.14%. The finishing mechanism is analyzed based on the motion trajectory of the barrel finishing media that are in contact with the workpiece observed in the simulation and the corresponding contact forces obtained from both the simulation and the experiment. Furthermore, the machining effect of the workpieces after the finishing process is discussed considering the analysis of the motion trajectory and the contact force. The achieved trajectories permit to calculate the active working time. This work provides an understanding of spindle barrel finishing process fundamentals and guidelines for optimal operating conditions.

主轴滚筒精加工通常用于改善高端设备重要部件的表面完整性，而很难为传统的反复试验提供足够的测试伪像以获取所需的加工技术。主轴筒精加工的EDEM仿真可以为工艺设计提供有效的帮助。在本文中，基于相同的设备和条件进行了仿真和实验，以促进彼此之间的比较和验证。仿真中所需的参数是根据可靠的实验确定的。为了解释精加工机筒中陶瓷介质和金属工件之间的相互作用，首先要获得工件表面材料磨损的深度，并根据基于EDEM中Hertz-Mindlin和Archard磨损模型的Archard磨损理论计算材料去除量。量化了去除的材料量与工件夹紧时间和位置之间的关系。与实验结果吻合良好。最大偏差为20.14％。根据在模拟中观察到的与工件接触的滚筒精加工介质的运动轨迹以及从模拟和实验中获得的相应接触力，分析了精加工机理。此外，还考虑了运动轨迹和接触力，讨论了精加工后工件的加工效果。所获得的轨迹可以计算有效工作时间。