金属体积成形复杂多因素动态耦合仿真模型的建立及应用  

Establishment and Application of Simulation Model of Bulk Forming Based on Multi-factor Dynamic-coupling

作　　者：权国政[1] 朱若岭[1] 周杰[1] 佟莹[2] 

机构地区：[1]重庆大学机械工程学院,重庆400044 [2]重庆电子工程职业学院机电工程系,重庆401331

出　　处：《热加工工艺》2008年第13期1-5,共5页Hot Working Technology

基　　金：科技部技术创新项目(07C26215110824)

摘　　要：对体积成形的多个影响因素进行解析,并对涉及的刚粘塑性有限元理论、热传输理论、磨损及损伤理论进行了阐述与融合。基于FEM软件建立成形过程中多因素动态耦合仿真模型,以曲轴锻造为应用实例,研究了锻造成形后的模具及锻件温度场分布、累积损伤分布,以及热力耦合下的模具一次磨损量分布。建立的仿真模型为实现金属热塑性成形各种工艺的模拟提供了依据。The diversified coupling factors affecting bulk forming were analyzed, and the related rigid visco-plastic theory, heat transfer theory, wear and damage theory were expatiated. A simulation model Of bulk forming based on multi-factor dynamic-coupling was set up, which was applied for a hot forming simulation of crankshaft. The temperature field and cumulate damage of dies and billet, the total wear depth of dies under thermal-force coupling were predicted. The simulation model contributes to the simulation of various hot forming process.

关 键 词：体积成形 热传导 磨损 曲轴 

分 类 号：TG315.2[金属学及工艺—金属压力加工]