Publication detail

Experimental analysis of microhardness changes of subsurface areas affected by WEDM

MOURALOVÁ, K. MICHNA, S ZAHRADNÍČEK, R. BEDNÁŘ, J. PLICHTA, T. FRIES, J.

Original Title

Experimental analysis of microhardness changes of subsurface areas affected by WEDM

Type

journal article in Web of Science

Language

English

Original Abstract

The influence of the surface area by the impact of high temperatures after wire electric discharge machining (WEDM) is a known fact. However, the affected parameters also include a change in microhardness. In order to further investigate this statement, 5 different ferrous and non-ferrous materials were selected, from which three samples were always made with different settings of machine parameters (gap voltage, pulse on and off time, wire feed and discharge current). This examined not only the effect of the machining itself on the material but also whether the change in the microhardness of the material is affected by the setting of the machine parameters. In order to measure the microhardness of the subsurface layer, a metallographic preparation was made from each sample, which enabled accurate measurements always in the same area. Subsequent evaluation revealed that the microhardness may not be affected at all and everything depends only on the type of material being machined. The changes in microhardness affected by setting machine parameters are negligible.

Keywords

WEDM; electrical discharge machining; microhardness; machining parameters; subsurface layer

Authors

MOURALOVÁ, K.; MICHNA, S; ZAHRADNÍČEK, R.; BEDNÁŘ, J.; PLICHTA, T.; FRIES, J.

Released

30. 3. 2022

Publisher

Sage Publications

Location

LONDON

ISBN

0954-4089

Periodical

PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART E-JOURNAL OF PROCESS MECHANICAL ENGINEERING

Year of study

2022

Number

236

State

United Kingdom of Great Britain and Northern Ireland

Pages from

1

Pages to

13

Pages count

13

URL

https://doi.org/10.1177/09544089221078383

Full text in the Digital Library

http://hdl.handle.net/11012/204707

BibTex

@article{BUT177513,
  author="Kateřina {Mouralová} and Štefan {Michna} and Radim {Zahradníček} and Josef {Bednář} and Tomáš {Plichta} and Jiří {Fries}",
  title="Experimental analysis of microhardness changes of subsurface areas affected by WEDM",
  journal="PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART E-JOURNAL OF PROCESS MECHANICAL ENGINEERING",
  year="2022",
  volume="2022",
  number="236",
  pages="1--13",
  doi="10.1177/09544089221078383",
  issn="0954-4089",
  url="https://doi.org/10.1177/09544089221078383"
}