Publication detail

Defects in the surface layer of pure molybdenum after WEDM

MOURALOVÁ, K. BENEŠ, L. ZAHRADNÍČEK, R.

English title

Defects in the surface layer of pure molybdenum after WEDM

Type

Scopus Article

Language

en

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 in English

WEDM, Electrical Discharge Machining, pure molybdenum, morphology of surface, topography, chemical composion, cracks

Released

2017-10-07

Publisher

UJEP

Location

Ústí nad Labem

ISSN

1213-2489

Journal

Manufacturing Technology

Volume

2017

Number

5

Pages from–to

786–790

Pages count

5

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"
}