In this study, hydraulic pressure generation and small-scale cylindrical hydromechanical deep-drawing experiments were conducted using a novel die-integrated active high-pressure generation system. The most significant feature is the installation of a hydraulic pressure-generating piston structure inside the die, which enables a high-pressure generation process of 100 MPa or higher inside the die. In addition, by taking advantage of the size effect of a smaller die, a high hydraulic pressure is actively generated using the same equipment as in conventional drawing processes. It was discovered that a piston installed in the die can actively generate a hydraulic pressure of 100 MPa or higher based on the Pascal principle. By downsizing the die, a hydraulic pressure of 100 MPa or higher can be generated using only the power of a small press machine (50 kN). By actively applying high hydraulic pressure counter and radial pressures, small-scale drawability can be significantly improved. Furthermore, the application of the proposed system to single-action presses and progressive dies can enable hydromechanical deep drawing with optimized conditions for each process in a single motion.

在本研究中，使用新型模具集成主动高压生成系统进行了液压生成和小型圆柱形流体力学拉深实验。最显着的特点是在模具内部安装了液压产生活塞结构，可以在模具内部实现100 MPa或更高的高压产生过程。此外，通过利用较小模具的尺寸效应，使用与传统拉丝工艺相同的设备主动产生高液压。人们发现，根据帕斯卡原理，安装在模具中的活塞可以主动产生 100 MPa 或更高的液压。通过缩小模具尺寸，仅使用小型压力机（50 kN）的动力即可产生 100 MPa 或更高的液压。通过积极施加高液压反压力和径向压力，可以显着改善小尺寸拉深性能。此外，将所提出的系统应用于单动压力机和级进模可以实现流体机械拉深，并在单次运动中为每个过程提供优化的条件。