摘要
针对现有薄壁管材翻转方式存在的问题,提出了一种新的助推式翻管结构。利用塑性有限元模拟,确定了相应外翻管模具的下模圆角半径r、助推块内径D、助推块速度v等工艺参数的数值,在此基础上设计并制造了一套助推式外翻管模具进行试验验证。有限元模拟和物理试验均证明,该助推式翻管方法可以得到比传统翻管方式质量更高的翻管件,且成品率更高。
On account of the drawbacks of the traditional thin-walled tube inversion method,a new boosted tube inversion process was put forward.The die radius r,inner diameter D and velocity v of the booster block were determined by Finite Element simulation,meanwhile the device for boosted tube external-inversion was made.Both the theoretical and experimental studies indicate that the quality of the double-walled tubular part produced by boosted tube inversion device is much higher than the quality of the part from any other inversion method,the rate of finished products is much higher.
出处
《中国机械工程》
EI
CAS
CSCD
北大核心
2008年第13期1625-1629,共5页
China Mechanical Engineering
基金
重庆市科技攻关重大项目(CSTC
2005AA3012-6)
关键词
管材
翻管
助推式翻管
成形
tube
inversion
boosted tube inversion
forming
