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大厚径比平面圆孔主要为运载火箭蒙皮及其它小钣金件的铆钉孔,其孔径及圆度要求较高。针对大厚径比平面圆孔的结构及公差要求,通过不同的工艺试验,确定了影响加工稳定性的主要因素,进而分析确定了水切割加工工艺参数,确定了加工方案,最终达到了大厚径比平面圆孔的加工要求。
Big thick diameter than the plane of the hole for the rocket skin and other small pieces of sheet metal rivet holes, the larger the diameter and roundness requirements. According to the requirements of the structure and tolerance of the large-diameter-to-diameter plane circular hole, the main factors affecting the processing stability were determined through different process experiments. The parameters of the water-cutting processing were determined and the processing scheme was confirmed. Finally, Diameter than the plane hole processing requirements.