Open AccessInvestigating wire breakage during EDM with fractographic analysis
Author(s) -
Iu. O. Bredgauer,
D. A. Polonyankin,
А. А. Федоров,
А. И. Блесман,
A. V. Linovsky,
D. V. Postnikov
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1791/1/012005
Subject(s) - electrical discharge machining , breakage , machining , electrode , materials science , tension (geology) , brass , metallurgy , composite material , mechanical engineering , engineering , ultimate tensile strength , copper , chemistry
Wire electrical discharge machining (WEDM) is widely used in various fields of production. Its disadvantages include a relatively low productivity rate caused by wire breakages among other factors. In this article, the method of fractographic analysis is used to study a wire that has undergone a breakage during machining. The results indicate that the tool–electrode is subjected to mechanical tension followed by a ductile fracture. The most probable reason of wire breakages is a decrease in the wire cross–section, which can be caused by an electrodes short circuit.