阶梯轴台肩圆角冷挤压成形速度场建模研究  

Research on velocity field modelling of the multi-diameter shaft's shoulder fillet forming by open-die cold extrusion

作　　者：张双杰[1] 曾富铭[1] 韩建业[2] 周增宾[1] 李军[1] 

机构地区：[1]河北科技大学,石家庄050054 [2]西北工业大学,西安710072

出　　处：《塑性工程学报》2005年第6期17-19,共3页Journal of Plasticity Engineering

基　　金：河北省科技厅重大攻关计划项目(02212105D)。

摘　　要：将开式冷挤压技术用于阶梯轴台肩圆角的成型。分析了阶梯轴台肩圆角开式冷挤压成形的变形特点,建立了该变形过程的非稳态动可容连续速度场,并利用上限法原理得出功率计算公式,通过实验结果与理论计算,验证了该模型的可行性。The open-die cold extrusion technique is firstly applied in forming of the multi-diameter shaft＇ s shoulder fillet The deformation characteristic is analysed, and the model of kinetically admissible unstable continuity velocity field of open-die cold extrusion of forming of the Multi-diameter Shaffs shoulder fillet is built, which is verified by comparing theoretical data of the upper-bound power with the experimental data.

关 键 词：台肩圆角 开式冷挤压 非稳态速度场 上限法 

分 类 号：TG371[金属学及工艺—金属压力加工]