锻压技术

微小管轴向超声辅助液压成形装置的设计与开发

英文标题：Design and development on axial ultrasonic assisted hydroforming device for microtubule

作者：陈占斌杨连发李贤章黄进杰姜靖宇

单位：桂林电子科技大学

分类号：TG394

出版年,卷(期):页码：2021,46(4):69-74

摘要：

针对现有的超声振动液压成形装置中振动主要施加在模具上、振动能量传递路径长、结构复杂等特点，开发了一种将振动直接作用于管材的微小管轴向超声辅助液压成形装置，可在普通压力机上进行超声和常规的轴压胀形。该装置选用标准模架作为轴向进给机构，结构简单、成本低，通过设计耦合了变幅杆功能和密封结构的一体化工具头，将超声振动顺利叠加在轴压胀形过程中，并以TP2无缝内螺纹铜管为试验材料进行了相关试验。结果表明：该装置拆装方便、操作简单，振动的加载降低了对成形过程中轴压载荷和液压力的要求，加强了材料的轴向流动。

For the characteristics of existing ultrasonic vibration hydroforming device, the vibration is mainly applied to the die, the transmission path of vibration energy is long, and the structure is complicated. Therefore, a kind of axial ultrasonic assisted hydroforming device for microtubule was developed, which applied the vibration to the tube directly, and the ultrasonic and conventional axial expansion were performed on ordinary press. Furthermore, the standard die base was used as the axial feeding mechanism in the device with simple structure and low cost, and by designing an integrated tool head coupled with the function of luffing horn and sealing structure, the ultrasonic vibration was superimposed during the process of axial expansion. Finally, the related tests were conducted with TP2 seamless internal thread copper tube as the test material. The results show that the device is convenient to assemble and disassemble with the simple operation, and the loading of vibration reduces the requirements of axial load and hydraulic pressure during the forming process and strengthens the axial flow of material.

基金项目：

广西研究生教育创新计划项目（JGY2019074）；桂林电子科技大学研究生优秀学位论文培育项目资助（18YJPYSS03）；2017广西自然科学基金资助项目（2017GXNSFAA198133）

陈占斌（1992-），男，硕士研究生 E-mail：C_zhanbin@163.com 通讯作者：杨连发（1965-），男，博士，教授 E-mail：y-lianfa@163.com

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