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MOURALOVÁ, K. BENEŠ, L. ZAHRADNÍČEK, R.
Original Title
Defects in the surface layer of pure molybdenum after WEDM
Type
journal article in Scopus
Language
English
Original Abstract
The utilisation of pure molybdenum in high-temperature applications in a vacuum requires very precise machining. Considering the fact that conventional machining methods do not achieve the required geometrical and dimensional accuracy in several cases, it is necessary to use the unconventional technology of wire electrical discharge machining (WEDM). This study aims at analysing the surface and subsurface layer of pure molybdenum after WEDM in terms of the occurrence of defects. Profile and areal parameters were evaluated by means of a contact 3D profilometer. The occurrence of individual defects both on the surface and underneath it was studied by means of the methods of electron microscopy and focused ion beam (FIB). Furthermore, the local chemical composition of the surface of the workpiece (EDX) was determined.
Keywords
WEDM, Electrical Discharge Machining, pure molybdenum, morphology of surface, topography, chemical composion, cracks
Authors
MOURALOVÁ, K.; BENEŠ, L.; ZAHRADNÍČEK, R.
Released
7. 10. 2017
Publisher
UJEP
Location
Ústí nad Labem
ISBN
1213-2489
Periodical
Manufacturing TECHNOLOGY
Year of study
2017
Number
5
State
Czech Republic
Pages from
786
Pages to
790
Pages count
URL
http://journal.strojirenskatechnologie.cz/templates/obalky_casopis/XVII_2017-5.pdf
BibTex
@article{BUT140163, author="Kateřina {Mouralová} and Libor {Beneš} and Radim {Zahradníček}", title="Defects in the surface layer of pure molybdenum after WEDM", journal="Manufacturing TECHNOLOGY", year="2017", volume="2017", number="5", pages="786--790", issn="1213-2489", url="http://journal.strojirenskatechnologie.cz/templates/obalky_casopis/XVII_2017-5.pdf" }