Micro-EDM milling with tube electrode

【中文摘要】 提出了采用对轴向损耗不敏感的微细管电极进行微细电火花分层铣削的加工方法,并对管电极在加工过程中的损耗特性进行了理论分析。在此基础上,分别采用铜管电极和实心电极进行了微细电火花铣削加工实验。结果表明:采用中空结构的管电极不仅减小了铣削过程中电极端部的损耗半径,提高了加工精度,而且简化了微细电火花铣削的分层策略和电极损耗补偿策略。 【英文摘要】 The axial wear-loss insensitive tube electrodes was applied to substitute solid electrodes during micro-EDM milling process,and the tube electrode wear-loss characteristics during this processing was analyzed.The comparative experiments using both copper tube electrodes and solid electrodes were carried out on the convention micro-EDM milling system.Results indicate that tube electrode reduces wear-loss radius of the electrode end,improves machining accuracy,and simplifies the compensation method in micro-E...国家自然科学基金重点项目(50835002