锻压技术

基于Simufact Forming的涡轮壳成形模具的设计

英文标题：Design of turbine shell forming die based on Simufact Forming

作者：张良

单位：江阴职业技术学院

分类号：TG386

出版年,卷(期):页码：2018,43(6):113-117

摘要：

以液力变矩器中的涡轮壳零件作为分析对象，利用Simufact Forming软件建立涡轮壳成形的有限元模型，仿真了两种不同的涡轮壳成形方案，通过仿真结果可以得知，采用压边圈的方案可以使冲压成形力降低27.1%，并且采用630 t机床可以满足零件的冲压。借助Simufact Forming软件对涡轮壳的成形进行回弹分析，研究了冲压工艺参数对涡轮壳成形回弹的影响变化趋势，研究表明，涡轮壳的回弹量随着模具间隙的增大而增加，而随着冲压速度的增大则减小。此外，基于有限元模拟的结果设计了涡轮壳的成形模具，并进行试验验证，通过测量得知涡轮壳的最大回弹量为0.442 mm，回弹量的最大模拟值为0.37 mm，两者之间的相对误差为16.3%，其可以满足样件制造的要求，从而为涡轮壳成形模具的设计提供重要的参考。

For the turbine shell used in hydraulic torque converter, the finite element model of turbine shell forming was established by software Simufact Forming, and two different turbine shell forming schemes were simulated. The simulation results show that the stamping force can be reduced by 27.1% by the blank holder, and 630 t machine tool can meet the stamping requirement of part. Furthermore, the springback of turbine shell was analyzed by software Simufact Forming, and the influence of stamping process parameters on the springback of turbine shell forming was studied. Then, it is found that the springback amount of turbine shell increases with the increase of die clearance, while it decreases with the increase of stamping speed. In addition, the stamping die of turbine shell was designed based on the results of finite element simulation, and it was verified by tests. The maximum springback of turbine shell is 0.442 mm by measurement, and the maximum simulation value of springback is 0.37 mm. Thus, the relative error between them is 16.3% which meets the requirements of sample manufacturing. Therefore, it provides an important guidance for the design of turbine shell forming die.

基金项目：

江阴职业技术学院科研项目（17E-JD-29）

张良（1973-），男，硕士，副教授；Email：zlthzl@hotmail.com

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