首页> 外文OA文献 >Process Design for Electromagnetic Forming of Magnesium Alloy AZ31 Using FE Simulation
【2h】

Process Design for Electromagnetic Forming of Magnesium Alloy AZ31 Using FE Simulation

机译:有限元模拟的镁合金AZ31电磁成形工艺设计

摘要

Magnesium wrought alloys are outstanding lightweight materials due to their low densityand high specific strength. The low formability of magnesium wrought alloy AZ31 at roomtemperature is increased by electromagnetic forming in comparison to quasi-staticforming. For a detailed study of electro-magnetic process a coupled FE simulation must beperformed. In this paper the process design for electromagnetic forming of magnesiumwrought alloy AZ1 using FE simulation is presented.The complexity of an electromagnetic forming process requires the illustration ofmagnetic, thermal and structural dynamic domains. Moreover, it is also necessary toillustrate the electromagnetic resonant circuit RLC. Short processing time and the strongdependence of the physical domains to each other requires a coupled FE simulation.The illustration of resonant circuit and the resulting formation of magnetic field iscarried out in two-dimensional rotationally symmetric model in ANSYS MAPDL using asuitable material model. As a result time-dependent and location-dependent eddy currentsand Lorentz forces are estimated.Subsequently, the transmission of the estimated Lorentz forces and joule heatgeneration rates to ANSYS LS-DYNA is done. Due to the rotational symmetry of 2D ANSYSMAPDL model a transformation of the loads on 3D structures can be realized. Theformation of an optimum deformation of a work piece in dependence of a defined die hasbeen carried out. Here, the influence of different coil designs, die materials and geometriesand RLC parameters was investigated.
机译:镁锻造合金由于其低密度和高比强度而成为出色的轻质材料。与准静态成形相比,通过电磁成形增加了镁锻合金AZ31在室温下的低成形性。为了详细研究电磁过程,必须执行耦合有限元模拟。本文介绍了用有限元模拟对镁合金AZ1进行电磁成形的工艺设计。电磁成形过程的复杂性需要对磁,热和结构动态域进行说明。此外,还必须说明电磁谐振电路RLC。短的处理时间和物理域之间的强依赖性要求耦合的有限元模拟。在ANSYS MAPDL中使用合适的材料模型在二维旋转对称模型中进行谐振电路的图示和由此形成的磁场。结果,估计了时间相关和位置相关的涡流和洛伦兹力。随后,完成了将估计的洛伦兹力和焦耳生热速率传输到ANSYS LS-DYNA的过程。由于2D ANSYSMAPDL模型的旋转对称性,可以实现3D结构上载荷的转换。已经完成了取决于限定的模具的工件的最佳变形的形成。在这里,研究了不同线圈设计,模具材料和几何形状以及RLC参数的影响。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号