双金属轴瓦弯曲-镦缩成形工艺仿真优化  

Numerical simulation and optimization of bending-upsetting process for bimetal bearing bushes

作　　者：刘利[1] 

机构地区：[1]重庆工业职业技术学院机械学院,重庆401120

出　　处：《模具技术》2014年第5期1-4,8,共5页Die and Mould Technology

基　　金：重庆市自然科学基金重点项目(CSTC;2009BA4065);国家重大专项(G09003.8-1)

摘　　要：针对某大型船用低中速柴油机双金属轴瓦塑性加工精度质量难以得到准确预测及控制的问题,建立了该型轴瓦弯曲及镦缩两成形工序的弹塑性有限元模型。研究了不同镦缩系数对成形的影响规律,优化得到了最佳的镦缩系数,并预测了对应的成形载荷。To deal with the problem of low accuracy in forming process of the bimetal bearing bushes, two-dimensional elastic-plastic finite element models were established by MSC. Marc software to simulate the forming processes of bending and upsetting. The influence of process parameters on forming quality was further researched. Based on the simulation re- suit, the upsetting parameters were optimized and the corresponding loadings were predicted.

关 键 词：双金属轴瓦 弯曲 镦缩系数 数值模拟 

分 类 号：TG386[金属学及工艺—金属压力加工]