钨合金液力挤压模具参数设计数值仿真研究  

Numerical simulation on parameters design of hydraulic extrusion die for tungsten alloys

作　　者：钱学梅[1] 袁格侠[2] 田雨江[1] 蔡波[1] 阎晓燕[1] 贺新民[1] 侯彩云[1] 

机构地区：[1]中国兵器科学研究院宁波分院,浙江宁波315103 [2]宝鸡文理学院,陕西宝鸡721013

出　　处：《兵器材料科学与工程》2013年第5期97-99,共3页Ordnance Material Science and Engineering

摘　　要：采用有限元数值模拟仿真技术研究液力挤压过程中模具定径尺寸,并与实测结果相比较。结果表明:数值模拟仿真计算结果和实测结果相一致,即随着挤压比的增大,制品直径回弹量也随之增大;当制品直径尺寸精度要求大于5道时,模具设计中定径尺寸的回弹量可忽略。The finite element numerical simulation technique was used to study the mould sizing dimension in the process of hydraulic extrusion, and the calculated results were compared with that of experimental results. The results show that the numerical simulated values are identical with experimental values. The springback values increase with the increase of extrusion ratio. The springback values of sizing dimension in die design can be disregarded if diameter dimensional accuracy of products is more than 0.01 mm.

关 键 词：液力挤压 定径尺寸 数值仿真 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术] TG376.4[自动化与计算机技术—计算机科学与技术]