EFFECT OF ROTARY SWAGING ON STRESS/STRAIN STATE WITHIN TUNGSTEN HEAVY ALLOY BAR

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F21%3A10252027" target="_blank" >RIV/61989100:27360/21:10252027 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.confer.cz/metal/2021/4113-effect-of-rotary-swaging-on-stress-strain-state-within-tungsten-heavy-alloy-bar" target="_blank" >https://www.confer.cz/metal/2021/4113-effect-of-rotary-swaging-on-stress-strain-state-within-tungsten-heavy-alloy-bar</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.37904/metal.2021.4113" target="_blank" >10.37904/metal.2021.4113</a>

Jazyk výsledku

angličtina

Název v původním jazyce

EFFECT OF ROTARY SWAGING ON STRESS/STRAIN STATE WITHIN TUNGSTEN HEAVY ALLOY BAR

Popis výsledku v původním jazyce

Owing to their exceptional combination of mechanical and physical properties, tungsten heavy alloys (THAs) are advantageous for demanding applications. The presented study focuses on analysing the effects of processing of THA bar by the cold rotary swaging method, particularly on investigating the effects of processing on residual stress within the swaged bar. The stress-state was predicted numerically using the finite element method (FEM) and the results were subsequently validated using data acquired experimentally via scanning electron microscopy (SEM-EBSD). As shown by the results, the predicted parameters corresponded well with the experimentally acquired data; by the effect of the swaging process, the effective imposed strain was the highest at the surface of the bar and decreased towards its axis, which corresponded to the distribution of microhardness, as well as the detected residual stress distribution. Nevertheless, the study focused on preliminary swaging experiment consisting of two swaging passes; the predicted results impart that the stress/strain gradient will diminish with continuing swaging. (C) 2021 TANGER Ltd., Ostrava.

Název v anglickém jazyce

EFFECT OF ROTARY SWAGING ON STRESS/STRAIN STATE WITHIN TUNGSTEN HEAVY ALLOY BAR

Popis výsledku anglicky

Owing to their exceptional combination of mechanical and physical properties, tungsten heavy alloys (THAs) are advantageous for demanding applications. The presented study focuses on analysing the effects of processing of THA bar by the cold rotary swaging method, particularly on investigating the effects of processing on residual stress within the swaged bar. The stress-state was predicted numerically using the finite element method (FEM) and the results were subsequently validated using data acquired experimentally via scanning electron microscopy (SEM-EBSD). As shown by the results, the predicted parameters corresponded well with the experimentally acquired data; by the effect of the swaging process, the effective imposed strain was the highest at the surface of the bar and decreased towards its axis, which corresponded to the distribution of microhardness, as well as the detected residual stress distribution. Nevertheless, the study focused on preliminary swaging experiment consisting of two swaging passes; the predicted results impart that the stress/strain gradient will diminish with continuing swaging. (C) 2021 TANGER Ltd., Ostrava.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20500 - Materials engineering

Projekt

<a href="/cs/project/GA19-15479S" target="_blank" >GA19-15479S: Zbytková napětí a mikrostruktura v kovových kompozitech modifikovaných extrémní plastickou deformací</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název statě ve sborníku

METAL 2021 : conference proceedings : 30th Anniversary International Conference on Metallurgy and Materials : May 26 - 28, 2021, Brno, Czech Republic, EU

ISBN

978-80-87294-99-4

ISSN

2694-9296

e-ISSN

—

Počet stran výsledku

6

Strana od-do

229-234

Název nakladatele

Tanger

Místo vydání

Ostrava

Místo konání akce

Brno

Datum konání akce

26. 5. 2021

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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