Research into EDM of Beryllium Foil

International Conference on Manufacturing Technology, Materials and Chemical Engineering

材料科学;化学工业

Wu, You^1 ; Xiong, Xuefeng^1 ; Pan, Wenjie^1

Institute of Materials, China Academy of Engineering Physics, Mianyang

621900, China^1

关键词: Electric erosion;    Electrical discharge machining;    Machining experiments;    Negative polarity;    Positive polarity;    Process condition;    Tool wear;    White light interference;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/592/1/012080/pdf
DOI  :  10.1088/1757-899X/592/1/012080

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

This paper concerns with a machining experiment on the beryllium sample by electrical discharge machining (EDM), and the experiment proves the machinability in beryllium foil machining of EDM. A brass electrode was chosen for the machining, and the relationship between the tool wear and the process condition was revealed. By the alternation of the positive polarity machining and the negative polarity machining, the tool wear caused by electric erosion was furthest controlled. The foil with a thickness of (0.05∼0.06) mm was achieved, and the Ra of (0.18∼0.20) μm and the P-V value of 0.78 μm were measured through white-light interference.