Publication detail

Precision Machining of Nimonic C 263 Super AlloyUsing WEDM

MOURALOVÁ, K. BENEŠ, L. BEDNÁŘ, J. ZAHRADNÍČEK, R. PROKEŠ, T. FIALA, Z. FRIES, J.

Original Title

Precision Machining of Nimonic C 263 Super AlloyUsing WEDM

Type

journal article in Web of Science

Language

English

Original Abstract

Wire electrical discharge machining (WEDM) is an unconventional and very efficient technology for precision machining of the Nimonic C 263 super alloy, which is very widespread, especially in the energy, aerospace and automotive industries. Due to electrical discharge, defects in the form of cracks or burned cavities often occur on the machined surfaces, which negatively affect the correct functionality and service life of the manufactured components. To increase the efficiency of the machining of Nimonic C 263 using WEDM, in this study, extensive design of experiments was carried out, monitoring input factors in the form of machine parameters like Pulse off time, Gap voltage, Discharge current, Pulse on time and Wire feed, the output of which was comprehensive information about the behaviour of such machined surfaces, which allowed the optimization of the entire machining process. Thus, the optimization of the Cutting speed was performed in relation to the quality of the machined surface and the machining accuracy, as well as an analysis of the chemical composition of the machined surfaces and a detailed analysis of the lamella using a transmission electron microscope. A detailed study of the occurrence of surface or subsurface defects was also included. It was found that with the help of complex optimization tools, it is possible to significantly increase the efficiency of the machining of the Nimonic C 263 super alloy and achieve both financial savings in the form of shortened machine time and increasing the quality of machined surfaces.

Keywords

WEDM; wire electrical discharge machining; nimonic; design of experiment; machining parameters

Authors

MOURALOVÁ, K.; BENEŠ, L.; BEDNÁŘ, J.; ZAHRADNÍČEK, R.; PROKEŠ, T.; FIALA, Z.; FRIES, J.

Released

24. 6. 2020

Publisher

MDPI

Location

Švýcarská konfederace

ISBN

2079-6412

Periodical

Coatings, MDPI

Year of study

10

Number

6

State

Swiss Confederation

Pages from

1

Pages to

20

Pages count

20

URL

https://www.mdpi.com/2079-6412/10/6/590

Full text in the Digital Library

http://hdl.handle.net/11012/193104

BibTex

@article{BUT164350,
  author="Kateřina {Mouralová} and Libor {Beneš} and Josef {Bednář} and Radim {Zahradníček} and Tomáš {Prokeš} and Zdeněk {Fiala} and Jiří {Fries}",
  title="Precision Machining of Nimonic C 263 Super AlloyUsing WEDM",
  journal="Coatings, MDPI",
  year="2020",
  volume="10",
  number="6",
  pages="1--20",
  doi="10.3390/coatings10060590",
  issn="2079-6412",
  url="https://www.mdpi.com/2079-6412/10/6/590"
}