锻压技术

钛合金板料橡皮高压冷成形起皱数值模拟与控制研究

英文标题：Numerical simulation and control method of wrinkling in rubber high pressure cold forming of Ti alloy sheet metal

作者：贾敏白颖许海燕陈磊

关键词：钛合金板料橡皮成形起皱

分类号：TG386

出版年,卷(期):页码：2014,39(6):132-136

摘要：

针对TB5高强度钛合金隔板零件的外形特征，利用PAM-STAMP软件对钛合金隔板零件的橡皮高压冷成形进行有限元数值模拟及试验研究，探讨消除成形中“起皱”缺陷的解决方案。采用不同的成形压力、橡皮硬度和摩擦系数等参数进行模拟成形试验，得到不同的模拟成形结果及成形参数。依据模拟成形结果，进行了隔板零件的橡皮成形试验，并考虑到侧压块对成形的影响，增加了楔形消皱块。综合试验和模拟的结果，最终确定出橡皮高压冷成形中的展开毛坯、模具结构和成形压力等主要影响因素的最佳参数值，为新型TB5钛合金材料在飞机零件上的应用提供了有效的参考数据。

Aiming to the physical characteristics of TB5 Ti alloy sheet metal parts with high strength, the finite element numerical simulation and test research of rubber high pressure cold forming for TB5 Ti alloy sheet metal parts were carried out by using soft ware PAM-STAMP. The solutions were investigated to eliminate the fault of wrinkling. The different forming forces, rubber hardnesses and friction coefficients were used to simulate the forming experiment. The different simulation results and forming parameters were obtained. And based on the simulation results, the rubber forming test of sheet metal parts was done. While considering the effect of side blank holder on forming, wedge anti-winkling block was added. The optimum parameters of main influencing factors such as unfold blank during rubber high pressure cold forming, die structure, forming pressure and so on, were determined finally by synthesizing test and simulation results, which provides effective reference data for the application of novel TB5 Ti alloy sheet metal on parts of airplane.

基金项目：

国家自然科学基金资助项目（51275141）；杭州电子科技大学基金资助项目（KYS015613011）

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