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Statements

Subject Item
n2:RIV%2F61989100%3A27360%2F11%3A86081447%21RIV12-MSM-27360___
rdf:type
n10:Vysledek skos:Concept
dcterms:description
The results concern roll pass design for rolling a round bar of a 20mm diameter from a 50mm input. Concerning materials, this roll pass design must cover a wide range of steels, from low-carbon micro-alloyed steels to stainless steels. The roll pass design proposal takes into consideration lower plasticity of certain steels. The comparison was enabled by suggesting two roll pass designs. The classical roll pass design oval-round, where the maximum extension coefficient is set to 1.55 in oval and 1.22 in round grooves. The second roll pass design uses a combination of smooth part of the roll (curves) and round roll passes. Distribution of the extension coefficient in individual passes is similar to that of oval-round series. The paper also compares values of energy-force parameters calculated analytically using the method of finite elements. If we compare the distribution of temperature, stress and size of the grain, it is proved that the oval-round roll pass designs are the best as far as the balanced distribution of the above-mentioned values is concerned. The roll pas design smooth part of the roll-round does not achieve such balance. However, its advantage lies in far lower requirement for the needed length of the working part of the roll. Five passes are carried out on the smooth part of the roll, which considerably cuts down the required length of the roll body. Therefore it is this variant that will be used in the laboratory of wire rolling created within the project RMSTC. The results concern roll pass design for rolling a round bar of a 20mm diameter from a 50mm input. Concerning materials, this roll pass design must cover a wide range of steels, from low-carbon micro-alloyed steels to stainless steels. The roll pass design proposal takes into consideration lower plasticity of certain steels. The comparison was enabled by suggesting two roll pass designs. The classical roll pass design oval-round, where the maximum extension coefficient is set to 1.55 in oval and 1.22 in round grooves. The second roll pass design uses a combination of smooth part of the roll (curves) and round roll passes. Distribution of the extension coefficient in individual passes is similar to that of oval-round series. The paper also compares values of energy-force parameters calculated analytically using the method of finite elements. If we compare the distribution of temperature, stress and size of the grain, it is proved that the oval-round roll pass designs are the best as far as the balanced distribution of the above-mentioned values is concerned. The roll pas design smooth part of the roll-round does not achieve such balance. However, its advantage lies in far lower requirement for the needed length of the working part of the roll. Five passes are carried out on the smooth part of the roll, which considerably cuts down the required length of the roll body. Therefore it is this variant that will be used in the laboratory of wire rolling created within the project RMSTC.
dcterms:title
Mathematical Simulation in Optimisation of Roll Pass Progression Mathematical Simulation in Optimisation of Roll Pass Progression
skos:prefLabel
Mathematical Simulation in Optimisation of Roll Pass Progression Mathematical Simulation in Optimisation of Roll Pass Progression
skos:notation
RIV/61989100:27360/11:86081447!RIV12-MSM-27360___
n10:predkladatel
n11:orjk%3A27360
n3:aktivita
n14:P n14:Z
n3:aktivity
P(ED0040/01/01), Z(MSM6198910015)
n3:cisloPeriodika
4
n3:dodaniDat
n4:2012
n3:domaciTvurceVysledku
n18:4488768
n3:druhVysledku
n15:J
n3:duvernostUdaju
n20:S
n3:entitaPredkladatele
n17:predkladatel
n3:idSjednocenehoVysledku
210924
n3:idVysledku
RIV/61989100:27360/11:86081447
n3:jazykVysledku
n9:eng
n3:klicovaSlova
mathematical simulation, roll pass design, gooved rolls, bars rolling
n3:klicoveSlovo
n8:gooved%20rolls n8:bars%20rolling n8:roll%20pass%20design n8:mathematical%20simulation
n3:kodStatuVydavatele
CZ - Česká republika
n3:kontrolniKodProRIV
[7397149C4632]
n3:nazevZdroje
Hutnické listy
n3:obor
n16:JG
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
2
n3:projekt
n13:ED0040%2F01%2F01
n3:rokUplatneniVysledku
n4:2011
n3:svazekPeriodika
64
n3:tvurceVysledku
Aksenov, Sergey Kubina, Tomáš
n3:zamer
n7:MSM6198910015
s:issn
0018-8069
s:numberOfPages
4
n19:organizacniJednotka
27360