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为了满足科研实验设备使用的需要,我厂设计制造了HCN激光干涉装置。该装置的关键零件是金属柱面光栅,在光栅制造方面我厂遇到了不少困难。开始曾试用插床、座标镗床等方法进行加工,但精度、光洁度和生产效率等均不理想,经过多次试验,最后在圆刻机上采用插削加工方法,达到了设计要求,现介绍如下。一、设计要求光栅采用两种材料:黄铜、硬铝合金等进行试比。沿圆周平行轴线刻线为3600条/2πR,闪烁角54度,反射系数80％,直径
In order to meet the needs of scientific research and experimental equipment, our factory designed and manufactured HCN laser interference device. The key part of the device is a metal cylinder grating, I encountered a lot of difficulties in grating manufacturing. At the beginning, we tried to use the methods such as slotting and coordinate boring machine to process, but the precision, finish and production efficiency were not satisfactory. After many tests, we finally adopted the insert cutting method on the circular engraving machine to meet the design requirements. First, the design requirements Raster using two materials: brass, aluminum and other hard-to-test ratio. Parallel engraved lines along the circumference of 3600 / 2πR, flicker angle of 54 degrees, the reflection coefficient of 80%, diameter