A modified five-axis cutting system using a force control cutting strategy was to machine indentations in different annuli on the entire surface of a target ball. The relationship between the cutting depths and the applied load as well as the microsphere rotation speed were studied experimentally to reveal the micromachining mechanism. In particular, aligning the rotating center of the high precision spindle with the microsphere center is essential for guaranteeing the machining accuracy of indentations. The distance between adjacent indentations on the same annulus and the vertical distance between adjacent annuli were determined by the rotating speed of the micro-ball and the controllable movement of the high-precision stage, respectively. In order to verify the feasibility and effect of the proposed cutting strategy, indentations with constant and expected depths were conducted on the entire surface of a hollow thin-walled micro-ball with a diameter of 1 mm. The results imply that this machining methodology has the potential to provide the target ball with desired modulated defects for simulating the inertial confinement fusion implosion experiment.

使用力控制切割策略的改进型五轴切割系统可在目标球的整个表面上加工不同环中的压痕。通过实验研究切削深度与外加载荷以及微球转速之间的关系，以揭示微加工机制。尤其是高精度主轴的旋转中心与微球中心的对准对于保证压痕的加工精度至关重要。同一环面上相邻压痕之间的距离和相邻环面之间的垂直距离分别由微球的旋转速度和高精度载物台的可控运动决定。为了验证所提出的切割策略的可行性和效果，在直径为 1 mm 的空心薄壁微球的整个表面上进行具有恒定和预期深度的压痕。结果表明，这种加工方法有可能为目标球提供所需的调制缺陷，以模拟惯性约束聚变内爆实验。