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 Posted: Mon 18:02, 10 Jan 2011 Post subject: Moncler online Multistep bell warm forging and tem |
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Multistep bell and warm forging temperature field coupling analysis
Good progress; shank little involvement deformed shank temperature decline had little effect on the shape. From the above analysis, are crowded, the top heading, three-step anti-extrusion process can be completed during the first heat. 3.3.5 deforming force stroke curve is squeezed by the process of deformation force stroke curve (Figure 5a) can see that in the beginning stages of being crowded, the load increased dramatically, reaching 3.2MN. The last in a steady deformation stage, the load stable, slightly. Figure 5b is a top heading deformation force stroke curve, in the process of upsetting the top of the load has been steadily rising, and finally increases rapidly. Upsetting process is a deformation of the top section of the growing process, and therefore increasing load, the last hit by a sharp rise in the formation of a flash stage. Figure c is the anti-extrusion process,[link widoczny dla zalogowanych], deformation force stroke curve. The simulation results and the actual deformation force of a stroke curve fit. Figure 5 deformation force stroke curve a) forward extrusion; b) top heading Ic) anti-extrusion Fig. 5Load-displacementcurveofmultlstepwarm/hotformingforouterrace4 Conclusion 1) using thermal coupled rigid viscoplastic finite element method is multistep bell hot forging process was simulated to obtain the equivalent strain field of the process, such as stress field, temperature field and the deformation force stroke curve analysis showed that the simulation results have good reliability. 2) to obtain a more continuous deformation process temperature, demonstrating that the completion of a heated bell jar under hot forming processes the feasibility of 3. This conclusion is also similar with the reference value process. References Xia Juchen editor. Precision plastic forming process. Beijing: Mechanical Industry Press, 1999, edited by NG perverse poetry. Cold temperature extrusion. Northwestern Polytechnical University Press,[link widoczny dla zalogowanych], I991 Li Shangjian editor. Metal forming process simulation. Beijing: Mechanical Industry Press, I999MARCTrainingGuideMARCAnalysisResearchCorporationinU. SA, 1998 LUO Wen-bo,[link widoczny dla zalogowanych], Hu Yungui, Hu albino and so on. Between plate cylinder upsetting the thermal analysis. Plasticity Engineering,[link widoczny dla zalogowanych], 2000.7 (1): 64 ~ 69 Hong Shen Ze, Dong Dingfu. WANG Shu-Jun, Cai Keyu. Temperature of hot forging process coupled numerical simulation of thermal field. Mechanical Engineering, 1996,32 (1): 63 ~ 67 Li Jun, Yu Li-hua. Hot forging process coupled deformation and heat transfer analysis. Mechanical Research & Application, 1996,12 (2) :60 - 63Thermo-mechanically-coupledfiniteelementanalysisofmultistepwarm / hotextrusionformingforouterraceWANGHtlaiunXIAJu-chenHUGuc ~ an (H.azhongUniversityofScienceandTechnologyStateKeyLabofPlasticFormingSimulationandDie & MoldTech.Wuhan430070) Abstract: Inthispaper, amu [tistepwarm / hotformingissimulatedforcrossgroveouteri ~ tceofconstantvelocityjointbyusingatherm ~ mechanicallycoupledrigid-vise ~ p [asticfinitedementmethod. Multiphysicsfieldsanddeformationlawareanalyzed. Theseobtainedresultsshowthatmultistepwarm/hotformingsimulatione0xiguideandrefertoformulationofdeformati0ntemperaturescopeforouterrace. Keywords: warm / hot [orging; finiteelementmethodthermc ~ mechanicallycouptedcontinuoustemperaturefield-,[link widoczny dla zalogowanych]! J stacked core r__iii bandit
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