Machining of pure molybdenum using WEDM

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27230%2F20%3A10245511" target="_blank" >RIV/61989100:27230/20:10245511 - isvavai.cz</a>

Alternative codes found

RIV/44555601:13420/20:43896019 RIV/00216305:26210/20:PU136522

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S0263224120305480?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0263224120305480?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.measurement.2020.108010" target="_blank" >10.1016/j.measurement.2020.108010</a>

Result language

angličtina

Original language name

Machining of pure molybdenum using WEDM

Original language description

Wire electrical discharge machining (WEDM) is an unconventional technology that is indispensable in almost all industries as well as pure molybdenum, which is used in almost all areas of industry, from energy through chemical, automotive, metallurgical to physical laboratory equipment designed for vacuum. However, due to its energy demands, the effort is to maximize the cutting speed with an emphasis on maintaining the quality of machined surfaces, which also often contain a number of defects in the form of cracks or burnt cavities. For this reason, the aim of this study was to find the optimum setting of the machine parameters using a design of experiment consisting of 33 rounds, with the material of pure molybdenum being examined. An extensive analysis of all machined samples was performed in terms of defects occurrence in the surface and subsurface layers, the analysis of topography and morphology including 3D surface reliefs, the analysis of chemical composition with dependence on diffusion processes and measurement of residual stress in the workpieces. Due to the high occurrence of cracks, the influence of the cut orientation through the semi-finished product was tested, and its fundamental influence on the occurrence of massive cracks was found out. In addition, to minimize the topography parameters and maximize the cutting speed, the machine parameters were set to: gap voltage = 70 V, pulse on time = 6 µs, pulse off time = 30 µs, wire speed 10 m.minMINUS SIGN 1 and discharge current = 35 A. (C) 2020 Elsevier Ltd

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

21100 - Other engineering and technologies

Project

<a href="/en/project/LM2015041" target="_blank" >LM2015041: CEITEC Nano</a><br>

Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2020

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Measurement

ISSN

0263-2241

e-ISSN

—

Volume of the periodical

163

Issue of the periodical within the volume

108010

Country of publishing house

US - UNITED STATES

Number of pages

13

Pages from-to

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UT code for WoS article

000575772000006

EID of the result in the Scopus database

2-s2.0-85085555840