Detail publikace

The analysis of EDM electrodes wear in corners and edges

MOURALOVÁ, K. BEDNÁŘ, J. BENEŠ, L. HRABEC, P. KALIVODA, M. FRIES, J.

Originální název

The analysis of EDM electrodes wear in corners and edges

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

Die-sinking electrical discharge machining is an unconventional technology that allows to machine all at least minimally electrically conductive materials regardless of their physical and mechanical properties. Despite the fact that it is not a conventional technology, the tool gets also worn out, which is a tool electrode. The wear of the electrode does not only mean its loss but also the degradation of the shapes that are transferred to the resulting workpiece. For this reason, a design of experiments was conducted with 6 input factors, 2 were categorical: the electrode material (copper, graphite) and workpiece material (steel 1.2363 and steel 1.2343ESR) and 4 were numerical: Open-voltage, Pulse current, Pulse on-time and Pulse off-time. In the framework of this design of experiments, the wear of the used graphite and copper electrodes at their corners and edges was evaluated, which was made possible by the use of electron microscopy and the use of approximation circles. Furthermore, the eroding speed, the topography of the machined samples and the morphology of the surfaces of the used electrodes were investigated. It has been recognized that the use of a graphite electrode will allow for more accurate workpiece shapes and less wear.

Klíčová slova

EDM; electrical discharge machining; wear; design of experiment; electrode; corners

Autoři

MOURALOVÁ, K.; BEDNÁŘ, J.; BENEŠ, L.; HRABEC, P.; KALIVODA, M.; FRIES, J.

Vydáno

5. 10. 2020

Nakladatel

Springer Nature

Místo

Polská republika

ISSN

1644-9665

Periodikum

ARCH CIV MECH ENG

Ročník

20

Číslo

5

Stát

Polská republika

Strany od

1

Strany do

17

Strany počet

17

URL

https://link.springer.com/article/10.1007/s43452-020-00137-8?wt_mc=Internal.Event.1.SEM.ArticleAuthorIncrementalIssue

BibTex

@article{BUT165483,
  author="Kateřina {Mouralová} and Josef {Bednář} and Libor {Beneš} and Pavel {Hrabec} and Milan {Kalivoda} and Jiří {Fries}",
  title="The analysis of EDM electrodes wear in corners and edges",
  journal="ARCH CIV MECH ENG",
  year="2020",
  volume="20",
  number="5",
  pages="1--17",
  doi="10.1007/s43452-020-00137-8",
  issn="1644-9665",
  url="https://link.springer.com/article/10.1007/s43452-020-00137-8?wt_mc=Internal.Event.1.SEM.ArticleAuthorIncrementalIssue"
}