INFLUENCE OF PUNCH SPEED ON FORMING CAPACITY FOR MATERIALS 1.0995 AND 1.0853

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

INFLUENCE OF PUNCH SPEED ON FORMING CAPACITY FOR MATERIALS 1.0995 AND 1.0853

Popis výsledku v původním jazyce

To evaluate forming capacity in sheet metal forming, experimentally determined Forming Limit Curves (FLC) are often used. These 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 1,0995 (commonly referred to as DP500) with a nominal thickness of 0.6 mm and deep drawing steel 1.0853 with a nominal thickness of 0.7 mm. The second goal is to evaluate the influence of punch speed (resulting in strain rate) on the position of forming limit curve for materials 1.0995 and 1.0853. The FLC curve is measured with the Nakajima test on a universal testing machine BUP 600. The test set-up and the shape of specimens follow EN ISO 12004-2. The stochastic, isotropic, and high contrast pattern was applied on specimens and was measured using a 3D photogrammetric system ARAMIS by GOM. The punch movement velocity was gradually changed, and experimentally measured results are compared with numerical simulation in AutoForm Forming R8.

Název v anglickém jazyce

INFLUENCE OF PUNCH SPEED ON FORMING CAPACITY FOR MATERIALS 1.0995 AND 1.0853

Popis výsledku anglicky

To evaluate forming capacity in sheet metal forming, experimentally determined Forming Limit Curves (FLC) are often used. These 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 1,0995 (commonly referred to as DP500) with a nominal thickness of 0.6 mm and deep drawing steel 1.0853 with a nominal thickness of 0.7 mm. The second goal is to evaluate the influence of punch speed (resulting in strain rate) on the position of forming limit curve for materials 1.0995 and 1.0853. The FLC curve is measured with the Nakajima test on a universal testing machine BUP 600. The test set-up and the shape of specimens follow EN ISO 12004-2. The stochastic, isotropic, and high contrast pattern was applied on specimens and was measured using a 3D photogrammetric system ARAMIS by GOM. The punch movement velocity was gradually changed, and experimentally measured results are compared with numerical simulation in AutoForm Forming R8.

Druh

O - Ostatní výsledky

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

2021

Kód důvěrnosti údajů

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