无缝钢管局部径向模具塑性成形过程的三维有限元数值模拟

3D FEM Simulation on the Locally Radial Die Shaping of Seamless Steel Pipe

采用大变形弹塑性有限元理论,用DYNA3D(研究版)有限元软件,对无缝钢管局部径向模具塑性成形过程中当凸模的凹槽尺寸与凸模的圆弧半径发生变化时进行了数值模拟研究,得出了对成形钢管表面质量控制具有重要参考价值的结论,解决了成形钢管表面的压痕问题。

In this paper the large deformation elastoplastic theory and software of DYNA(studyedition)are used to carry out the 3D FEM simulation research on the process of the locally radial die shaping of seamless steel pipe when the die-heads groove dimension are different,it comes to some important and valuable value conclusions which affects the surface quality of seamless steel pipe, solve the problem of moulding surface impression.