强激光与粒子束, 2014, 26 (12): 122006, 网络出版: 2015-01-08
黑腔芯轴平台微细电火花加工技术
Fabrication of flat on the side of hohlraum mandrel by micro-EDM technology
黑腔 芯轴 平台 电火花加工 惯性约束聚变 hohlraum mandrel flat electrical discharge machining inertial confinement fusion
摘要
采用电火花成型加工技术,在黑腔芯轴侧表面加工平台。采用白光干涉仪对平台表面轮廓及粗糙度测量,结果表明: 平面部分表面粗糙度小于0.5 μm,最大峰谷高度小于15 μm。通过奥林巴斯测力显微镜对平台尺寸测量,结果表明: 平台的轴向尺寸加工精度可控制在±10 μm,同一电极加工的平台尺寸一致性可控制在±2 μm。分析了电极损耗对零件形状精度的影响规律以及平台表面粗糙度的影响因素,并通过负极性加工去除电极损耗对平台尺寸精度的影响。
Abstract
The flat on the side of hohlraum mandrel was machined by electrical discharge machining technology. The surface roughness and contour were characterized by Veeco NT 1100 white light interferometer. The results indicate surface average roughness of flat less than 0.5 μm and maximum peak to valley height less than 15 μm. The flat size was characterized by OLYMPUS STM6 measuring microscope. The results indicate axial dimension precision of flat less than 10 μm and dimension uniformity less than 2 μm.
张昭瑞, 谢军, 朱磊, 刘峰, 黄燕华, 张海军, 李国, 宋成伟. 黑腔芯轴平台微细电火花加工技术[J]. 强激光与粒子束, 2014, 26(12): 122006. Zhang Zhaorui, Xie Jun, Zhu Lei, Liu Feng, Huang Yanhua, Zhang Haijun, Li Guo, Song Chengwei. Fabrication of flat on the side of hohlraum mandrel by micro-EDM technology[J]. High Power Laser and Particle Beams, 2014, 26(12): 122006.