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MOURALOVÁ, K. POLZER, A. BENEŠ, L. BEDNÁŘ, J. ZAHRADNÍČEK, R. PROKEŠ, T. FIALA, Z. FRIES, J.
Original Title
Machining of B1914 nickel-based superalloy using wire electrical discharge machining
Type
journal article in Web of Science
Language
English
Original Abstract
The unconventional technology of wire electrical discharge machining is a key engineering technology, designed primarily for machining of conventionally difficult machine materials. One of them is nickel alloys, which are majorly used in the aerospace and energy industries. The subject of research in this study was specifically the B1914 nickel-based superalloy, which was subjected to many analyses leading to an overall optimization of its machining using wire electrical discharge machining. In order to determine the effect of machine parameters setup (pulse off time, gap voltage, discharge current, pulse on time and wire feed) on cutting speed, topography, morphology, surface and subsurface layer quality, an extensive Box-Behnken design experiment consisting of 46 rounds was carried out. The analyses of the condition of the surface and subsurface layers were performed, including their chemical composition and changes caused by wire electrical discharge machining. It was found out that the factors like pulse off time, discharge current and pulse on time have the greatest effect on the cutting speed, although from the point of view of surface topography the parameter pulse off time is not significant. The remaining two parameters cause the cutting speed to act against the surface topography i.e. with the increasing cutting speed, the surface topography gets worse and vice versa.
Keywords
Wire electrical discharge machining; nickel alloy; B1914; design of experiment; machining parameters
Authors
MOURALOVÁ, K.; POLZER, A.; BENEŠ, L.; BEDNÁŘ, J.; ZAHRADNÍČEK, R.; PROKEŠ, T.; FIALA, Z.; FRIES, J.
Released
24. 11. 2021
Publisher
SAGE PUBLICATIONS LTD
Location
LONDON
ISBN
0954-4089
Periodical
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART E-JOURNAL OF PROCESS MECHANICAL ENGINEERING
Year of study
235
Number
6
State
United Kingdom of Great Britain and Northern Ireland
Pages from
2141
Pages to
2153
Pages count
13
URL
https://journals.sagepub.com/doi/abs/10.1177/09544089211031746
BibTex
@article{BUT172663, author="Kateřina {Mouralová} and Aleš {Polzer} and Libor {Beneš} and Josef {Bednář} and Radim {Zahradníček} and Tomáš {Prokeš} and Zdeněk {Fiala} and Jiří {Fries}", title="Machining of B1914 nickel-based superalloy using wire electrical discharge machining", journal="PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART E-JOURNAL OF PROCESS MECHANICAL ENGINEERING", year="2021", volume="235", number="6", pages="2141--2153", doi="10.1177/09544089211031746", issn="0954-4089", url="https://journals.sagepub.com/doi/abs/10.1177/09544089211031746" }