今天A2 - Song, Aiguo AU -塔拉索夫，Alexander F. AU - Altukhov, Alexander V. AU - Gribkov, Eduard P. AU - Abdulov，亚历山大·r . PY - 2019 DA - 2019/10/16 TI -发展和新的严重的塑性变形过程的有限元建模根据反向剪切方案SP - 8563830六世- 2019 AB -工业商业用途的社民党过程在某些情况下阻碍了设备的复杂性和高负载与高流体静力学相关的工具在实现现有的变形过程。新的和修改的SPD方案相对较多，因此其创建、建模和改进方法特别值得关注。因此，本文对SPD方案进行了分类，根据变形区物质流动的性质将SPD方案分为若干组。裂变过程的第二个属性是同时位于塑性变形区金属的体积。通过分析SPD方案对塑性变形区形成特征的影响，我们可以找到有前景的改进方法。提出了一种新的SPD过程，称为“反向剪切”(RS)，即工件在平面变形状态下变形，在每个横截面上沿工件的整个长度均匀分布。RS过程允许我们改变变形的路径，在工件体积内重新分布应变由于工件在模具中的不同位置。为了证明所提出的变形方案，SPD过程被分成组，并分析变形方案的特点，这是类似的RS，进行了分析。在专用的QForm cae系统中，采用有限元方法对所考虑的SPD进程进行了仿真。 A study of the influence of a tool with inclined surfaces on formation of a deformation zone in a workpiece during RS and analogues has been carried out. The degree of deformation nonuniformity in a cross section for the considered deformation schemes has been determined, and the possibilities of the proposed process are shown in comparison with analogues. The advantage of the RS scheme is the absence of unformed edges of the workpiece, which reduces material consumption, increasing the accumulated degree of deformation by one operation and reducing the tooling complexity to obtain workpieces with a desired structure. It also provides an opportunity to deform workpieces by various routes (RS-60 and RS-180) and to more specifically develop or select SPD schemes based on modeling. Changing the aspect ratio of the workpiece cross section also allows us to manage the change in its stress-strain state during deformation. Comparisons with the experiment carried out for three operations of deformation of a Cu-ETP copper sample by the RS-60 route show that the simulation results correspond to the real process. SN - 1687-5591 UR - https://doi.org/10.1155/2019/8563830 DO - 10.1155/2019/8563830 JF - Modelling and Simulation in Engineering PB - Hindawi KW - ER -