液-固挤压复合材料管材成形过程中温度场的有限元分析  

FEM ANALYSIS ON THE TEMPERATURE FIELDDURING COMPOSITE TUBE LIQUID-SOLIDEXTRUSION FORMING PROCESS

作　　者：齐乐华[1] 崔培玲[2] 史忠科[2] 李贺军[3] 

机构地区：[1]西北工业大学机械工程及自动化系,西安710072 [2]西北工业大学自动控制系,西安710072 [3]西北工业大学材料科学工程系,西安710072

出　　处：《金属学报》2002年第5期549-554,共6页Acta Metallurgica Sinica

基　　金：国家自然科学基金50175091;国防基金51412050101HK0036;西北工业大学博士论文创新基金资助项目

摘　　要：建立了液-固挤压复合材料管材成形过程的非稳态温度场的有限元数学模型,开发了相应的模拟软件．对复合材料管材成形过程的温度场进行了模拟研究,得到了成形全过程的温度场分布图,依据该图可以预测管材成形质量,结合实验分析了影响管材成形质量的内在原因,模拟结果与实验结果吻合较好,为深入了解金属的流动规律和合理选择工艺参数奠定了理论基础。The FEM mathematic model of the non-steady temperature field in liquid-solid extrusion composite process was built, the relative simulation software was programmed. the temperature field of the composite tube forming process is simulated, and the temperature field distribution figures of the whole process, by which the forming quality of the tube is predicted, were obtained. The inner reason that influences the tube forming quality was analyzed with the experimental data. The simulation results are in agreement with the experiments, which provides a theoretic basis for the further understanding of the metal flow law and the rational choice of the process parameters.

关 键 词：液-固挤压 复合材料 管材 成形过程 温度场 有限元 

分 类 号：TG376.9[金属学及工艺—金属压力加工] TB331[一般工业技术—材料科学与工程]