The Effect of Punch Speed on Position of Forming Limit Curve

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

The Effect of Punch Speed on Position of Forming Limit Curve

Popis výsledku v původním jazyce

To evaluate formability in sheet metal forming, experimentally determined Forming Limit Curves (FLC) are often used. These conventional curves represent the forming limits of a material. The most widely used approach to experimentally determine the onset of necking of sheet metals is formulated in EN ISO 12004-2. The first goal of this work is to investigate limit strains for dual phase steel HCT490X with nominal thickness 0.6 mm. The second goal is to evaluate influence of punch speed on position of forming limit curve also for material HCT490X. The FLC curve has been measured through Nakajima test on universal testing machine. The test set-up and the shape of samples result from EN ISO 12004-2. Unrepeatable, isotropic and highly contrast pattern was applied on samples and was measured using 3D photogrammetric system ARAMIS by GOM. The punch movement velocity was gradually changed and experimentally measured forming limit curves are compared in this paper.

Název v anglickém jazyce

The Effect of Punch Speed on Position of Forming Limit Curve

Popis výsledku anglicky

To evaluate formability in sheet metal forming, experimentally determined Forming Limit Curves (FLC) are often used. These conventional curves represent the forming limits of a material. The most widely used approach to experimentally determine the onset of necking of sheet metals is formulated in EN ISO 12004-2. The first goal of this work is to investigate limit strains for dual phase steel HCT490X with nominal thickness 0.6 mm. The second goal is to evaluate influence of punch speed on position of forming limit curve also for material HCT490X. The FLC curve has been measured through Nakajima test on universal testing machine. The test set-up and the shape of samples result from EN ISO 12004-2. Unrepeatable, isotropic and highly contrast pattern was applied on samples and was measured using 3D photogrammetric system ARAMIS by GOM. The punch movement velocity was gradually changed and experimentally measured forming limit curves are compared in this paper.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20301 - Mechanical engineering

Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název statě ve sborníku

TECHNOLOGICAL FORUM 2019

ISBN

978-80-87583-30-2

ISSN

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e-ISSN

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Počet stran výsledku

4

Strana od-do

105-108

Název nakladatele

Ing. Jan Kudláček

Místo vydání

Jaroměř

Místo konání akce

Veselý Kopec

Datum konání akce

18. 6. 2019

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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