Bi-phasic Simulation of Metal Injection Moulding:Constitutive Determinations

查看全文 作　　者：[1]柳葆生;Barriere [2]Thierry;Gelin Jean-[2]Claude

机构地区：[1]Department of Engineering Mechanics,Southwest Jiaotong University;[2]LMARC,Franche-Comt University

出　　处：《Journal of Southwest Jiaotong University(English Edition)》索引2003年第11卷第2期,共9页

基　　金：SupportedbyFrenchProgramforInvitedProfessor (No .980 85 88) ,theFundfortheDoctoralProgramofHigherEducation (No .2 0 0 2 0 61 30 0 5 ) ,andChineseFoundationforUniversityKeyTeachers (GG 460 1 0 61 3 2 770 ) 摘　　要：To predict the segregation effect in metal injection moulding (MIM) injection, a bi-phasic model based on mixture theory is adopted in simulation. An explicit algorithm is developed and realized by the authors, which conducts the simulation to be a cost-effective tool in MIM technology. In case of the bi-phasic simulation, the viscosity behaviours are necessary to be determined for the flows of each phase while only the viscosity of mixture is measurable by tests. It is a crucial problem for application of the bi-phasic simulation of MIM injection. A reasonable method is hence analysed and proposed to determine the viscosity behaviours of each phase. Even though this method may be furthermore modified in the future, it results in the practical simulation of segregation effects with reasonable parameters. The simulation results are compared with the measurements on injected specimens. 关键词：铋相位模拟金属注射浇铸粘滞行为混合理论 MIM注射

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Bi-phasic Simulation of Metal Injection Moulding:Constitutive Determinations

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