Open AccessResearch into EDM of Beryllium Foil
Author(s) -
You Wu,
Xuefeng Xiong,
Wenwu Pan
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/592/1/012080
Subject(s) - brass , beryllium , machining , materials science , foil method , electrical discharge machining , metallurgy , polarity (international relations) , machinability , electrode , composite material , chemistry , biochemistry , organic chemistry , copper , cell
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 R a of (0.18~0.20) μm and the P-V value of 0.78 μm were measured through white-light interference.