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 Wysłany: Nie 23:35, 09 Sty 2011 Temat postu: Moncler jacken Hot Ring _1824 Finite element simul |
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Ring finite element simulation of the dynamic process of hot-rolled
With the pressure roller feed rate curve. Meanwhile, with the increase of loading speed of rolling, forging ring can improve the permeability, the ring width and depth of depression face smaller. End sag with the rolling speed of the curve shown in Figure 9. Figure 8 with the pressure roller rolling torque curve of the feed rate Fig · 8ThecureofrollingmomentwiththemovingforwardspeedofpressuJferoller. Five small device thickness of the base value (ram) Figure 9 with the rolling temperature, rolling force turned the curve of Fig. 9Thecurveofroilingforcewiththerollingtemperature. When the rolling material model by Zhou Jihua, the rolling force with the ring rolling temperature curve shown in Figure 1O. Can be seen from the figure, the decrease of temperature causes material deformation flow stress increases, the rolling force increases; and increasing temperature,[link widoczny dla zalogowanych], the rolling force decreases, but at the same time as viscosity increases the flow of materials, so rolling reduce the force reduction ranges Objective Programmes Tanzania, / / 7 conclusions on the scorpionfish face anxiety 1 EE a ZO. Omm2 one by one 14. Omm/03 one by one 1. ~ Omm / s radial size (ram) radial size (ram) Figure 10 turned face sag with the rolling velocity curves of Fig. 10Thecurveofendfacehollowwiththerollingspeed. More use of rigid viscoplastic dynamic explicit finite element simulation of the dynamic process of hot rolled rings, revealing the metal flow law, as the ring rolling process indicators and efficiency of the process indicators provide a basis for determining the results show that the rigid viscoplastic dynamic explicit Type a 2 Guo Zhenghua et al: Ring Finite element simulation of hot-rolled dynamic finite element analysis of ring algorithm is an effective means of hot rolling process. References 1YangDY, KimKH + HawkyardJB. SimulationofT-SectionProfileRingRollingbythe3-DRigid-PlasticFiniteElementMethod. Int. J. Mech. Sei. , 1991 +332 NaksooKim,[link widoczny dla zalogowanych], ShiroKobayshi, TaylanAhan. Three-DimensionAnalysisandComputerSimulationofShapeRollingbytheFiniteElementMethod. Int. J. Mach. ToolsManufact. 1991,31 (4) 3 Du coral. 『Continuum mechanics of the bow. Tsinghua University Press,[link widoczny dla zalogowanych], 19854 Spring Thunder solutions,[link widoczny dla zalogowanych], Lee Sang key, HUANG Shuhuai. Viscoplastic deformation of metals ridicule the energy functional and the dynamic explicit finite element analysis algorithm. Solid Mechanics, 1998,19 (2) 5 Xiao Jingrong 1. Li Shangjian. Theory of garlic to be forming. Huazhong University of Science Press, 1994, SIMULATiONOFRINGROLLINGDYNAMICPROCESSBYFINITEELEMENTMETH0DGuoZhenghuaXieChunleiLiShengjian (StateKeyLabofPlasticFormingSimulationandDie & MouldTech430074) Abs ~ 'KtInthispaper, therigid-viscoplasticdynamicexplicitFEMisappliedtosimulatetheflowpatternsofmetalintheringrollingprocesses. Thesimulationresultsshowthatthedimension, configuration, tempera-tureoftheworkpieceandloadingvelocitytakeinfluenceontheworkpieeequalityandproductionefficiency. KeywordsFEM, ringrolling + rigid-viscoplastic,[link widoczny dla zalogowanych],, iynamicexplicit
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