南京航空航天大学学报（英文版）2025，Vol.42Issue(4)：554-564,11.DOI:10.16356/j.1005-1120.2025.04.010
钎焊金刚石工具铣磨加工蓝宝石球罩表面粗糙度模型及工艺
Surface Roughness Model and Process of Brazed Diamond Tool Milling and Grinding Sapphire Dome
摘要
Abstract
Sapphire hemispherical domes are machined through milling and shaping using brazed diamond tools.A mathematical model describing roughness for this processing method is established,and the relationship between roughness and its influencing factors is analyzed.Experiments on the hemispherical dome shaping process are conducted to validate the model,analyzing the variation in roughness under different tool and workpiece rotational speeds.The results are consistent with the predictions of the established roughness model,suggesting that the model can be used to guide subsequent process experiments.Milling and shaping efficiency using brazed diamond tools typically can reach 14 g/min.The machined sapphire surfaces exhibit relatively few microcracks and minimal damage,with almost all exclusively visible grooves resulting from brittle fracture removal.The surface roughness after machining is below 2.5 μm.Milling sapphire domes with brazed diamond tools represents a novel shaping technique characterized by high efficiency and high quality.关键词
金刚石工具/蓝宝石球罩/铣磨/粗糙度Key words
diamond tools/sapphire dome/milling and grinding/roughness分类
矿业与冶金引用本文复制引用
冯伟,孙孝康,张玲玲,朱楠楠..钎焊金刚石工具铣磨加工蓝宝石球罩表面粗糙度模型及工艺[J].南京航空航天大学学报（英文版）,2025,42(4):554-564,11.基金项目
This work was supported by the Na-tional Natural Science Foundation of China(No.51675457)and the Jiangsu Key Laboratory of Precision and Micro-man-ufacturing Technology. （No.51675457）
