Possibilities of Optimisation of Production of Tool Steel for Forging on the Rapid Forging Machine

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

Possibilities of Optimisation of Production of Tool Steel for Forging on the Rapid Forging Machine

Popis výsledku v původním jazyce

The paper presents research of possibilities of optimisation of production of tool steel of X40CrMoV5-1 grade for forging on the rapid forging machine, which was directed on conditions of casting with focus on macro-porosity and micro-porosity in the ingot body. Metallographic analyses of ingot structures prove that internal discontinuities in ingots may be formed as a result of volume changes of liquid and solid phases, of carbidic segregations and micro-cracks in segregations. Assuming similar conditions and parameters for casting of X40CrMoV5-1 steel grade, numerical simulations of casting, solidification and cooling of two types of identical shape of cross-section, of similar diameter and taper of the forging ingot from the melt without rejects andwith occurrence of rejects from the final forged piece were performed in MAGMA program. Design of new shape of ingot mould was created after evaluation of the achieved parameters and numerical simulation of casting with modified taper of

Název v anglickém jazyce

Possibilities of Optimisation of Production of Tool Steel for Forging on the Rapid Forging Machine

Popis výsledku anglicky

The paper presents research of possibilities of optimisation of production of tool steel of X40CrMoV5-1 grade for forging on the rapid forging machine, which was directed on conditions of casting with focus on macro-porosity and micro-porosity in the ingot body. Metallographic analyses of ingot structures prove that internal discontinuities in ingots may be formed as a result of volume changes of liquid and solid phases, of carbidic segregations and micro-cracks in segregations. Assuming similar conditions and parameters for casting of X40CrMoV5-1 steel grade, numerical simulations of casting, solidification and cooling of two types of identical shape of cross-section, of similar diameter and taper of the forging ingot from the melt without rejects andwith occurrence of rejects from the final forged piece were performed in MAGMA program. Design of new shape of ingot mould was created after evaluation of the achieved parameters and numerical simulation of casting with modified taper of

Druh

D - Stať ve sborníku

CEP obor

JG - Hutnictví, kovové materiály

OECD FORD obor

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Projekt

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Návaznosti

N - Vyzkumna aktivita podporovana z neverejnych zdroju

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název statě ve sborníku

METAL 2014: 23rd International Conference on Metallurgy and Materials: conference proceedings : May 21st-23rd 2014, hotel Voroněž I, Brno, Czech Republic, EU

ISBN

978-80-87294-54-3

ISSN

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e-ISSN

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Počet stran výsledku

8

Strana od-do

111-118

Název nakladatele

Tanger

Místo vydání

Ostrava

Místo konání akce

Brno

Datum konání akce

21. 5. 2014

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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