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A path planning method used in fluid jet polishing eliminating lightweight mirror imprinting effect

机译:一种用于流体喷射抛光的路径规划方法,可消除轻型镜面压印效果

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With the development of space technology, the design of optical system tends to large aperture lightweight mirror with high dimension-thickness ratio. However, when the lightweight mirror PV value is less than λ/10 , the surface will show wavy imprinting effect obviously. Imprinting effect introduced by head-tool pressure has become a technological barrier in high-precision lightweight mirror manufacturing. Fluid jet polishing can exclude outside pressure. Presently, machining tracks often used are grating type path, screw type path and pseudo-random path. On the edge of imprinting error, the speed of adjacent path points changes too fast, which causes the machine hard to reflect quickly, brings about new path error, and increases the polishing time due to superfluous path. This paper presents a new planning path method to eliminate imprinting effect. Simulation results show that the path of the improved grating path can better eliminate imprinting effect compared to the general path.
机译:随着空间技术的发展,光学系统的设计趋向于具有大的尺寸厚度比的大口径轻便镜。但是,当轻量镜的PV值小于λ/ 10时,表面将明显表现出波浪形的压印效果。头部压力带来的压印效果已成为高精度轻质镜制造中的技术障碍。流体喷射抛光可以排除外部压力。当前,经常使用的加工轨迹是光栅型轨迹,螺杆型轨迹和伪随机轨迹。在压印误差的边缘,相邻路径点的速度变化太快,导致机器难以快速反射,导致新的路径误差,并且由于多余的路径而增加了抛光时间。本文提出了一种消除印记影响的新的规划路径方法。仿真结果表明,与普通路径相比,改进后的光栅路径可以更好地消除压印效果。

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