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Statements

Subject Item
n2:RIV%2F61989100%3A27360%2F14%3A86090062%21RIV15-MSM-27360___
rdf:type
n12:Vysledek skos:Concept
dcterms:description
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 and with 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 the forging ingot was performed with preservation of other original parameters. 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 and with 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 the forging ingot was performed with preservation of other original parameters.
dcterms:title
Possibilities of Optimisation of Production of Tool Steel for Forging on the Rapid Forging Machine Possibilities of Optimisation of Production of Tool Steel for Forging on the Rapid Forging Machine
skos:prefLabel
Possibilities of Optimisation of Production of Tool Steel for Forging on the Rapid Forging Machine Possibilities of Optimisation of Production of Tool Steel for Forging on the Rapid Forging Machine
skos:notation
RIV/61989100:27360/14:86090062!RIV15-MSM-27360___
n3:aktivita
n20:N
n3:aktivity
N
n3:dodaniDat
n17:2015
n3:domaciTvurceVysledku
n18:2653508
n3:druhVysledku
n14:D
n3:duvernostUdaju
n5:S
n3:entitaPredkladatele
n9:predkladatel
n3:idSjednocenehoVysledku
37867
n3:idVysledku
RIV/61989100:27360/14:86090062
n3:jazykVysledku
n15:eng
n3:klicovaSlova
numerical simulations; micro-porosity; macro-porosity; rapid forging machine; tool steel
n3:klicoveSlovo
n4:macro-porosity n4:micro-porosity n4:numerical%20simulations n4:rapid%20forging%20machine n4:tool%20steel
n3:kontrolniKodProRIV
[03D7FEE3D424]
n3:mistoKonaniAkce
Brno
n3:mistoVydani
Ostrava
n3:nazevZdroje
METAL 2014: 23rd International Conference on Metallurgy and Materials: conference proceedings : May 21st-23rd 2014, hotel Voroněž I, Brno, Czech Republic, EU
n3:obor
n6:JG
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
3
n3:rokUplatneniVysledku
n17:2014
n3:tvurceVysledku
Čamek, Libor Korbáš, Martin Kůrka, Vladislav
n3:typAkce
n10:WRD
n3:zahajeniAkce
2014-05-21+02:00
s:numberOfPages
8
n16:hasPublisher
Tanger s.r.o.
n19:isbn
978-80-87294-54-3
n11:organizacniJednotka
27360