超声辅助微挤压成形系统设计

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振动与冲击 ›› 2017, Vol. 36 ›› Issue (15) : 259-264.

论文

超声辅助微挤压成形系统设计

彭卓1 韩光超1,2,3 李凯1 陈昊1

作者信息 +

Design of ultrasonic-assisted micro extrusion forming system

PEN Zhuo 1, HAN Guangchao 1,2,3 , LI Kai 1, CHEN Hao1

Author information +

文章历史 +

摘要

针对微型零部件的超声微挤压成形过程，对的振动特性进行仿真优化设计，研制可实现工件辅助超声振动的超声微挤压成形系统。在对矩形六面体竖直超声振动模态进行仿真分析的基础上，通过矩形六面体的结构参数优化并设置一定数量的圆柱形内孔，使得超声变幅器辐射面可实现均匀的竖直方向超声振幅输出，并采用双换能器和双变幅杆驱动形式实现整体超声振动系统的支撑和振动能量的输入。实验结果表明，所研制的超声辅助微挤压成形系统可负载微成形工件及模具实现竖直方向的整体超声谐振，并能满足工件超声振动辅助微挤压成形加工的需求。

Abstract

For the ultrasonic-assisted micro extrusion process of micro parts, the ultrasonic micro extrusion forming system was developed to realize the ultrasonic-assisted vibration of workpiece. And the numerical simulation analysis method was used to optimize the vibration characteristics of rectangular hexahedron sonotrode. Basing on the ultrasonic vibration mode of rectangular hexahedron which could implement vertical vibration modal, the resonant surface of sonotrode was made to realize uniform vertical output of ultrasonic amplitude after having been made structure optimization and set up with a certain number of cylindrical holes inside. Double transducers and double stepped horns were designed to support the whole ultrasonic vibration system and apply input of ultrasonic vibration energy. Experimental results show that the micro ultrasonic assisted extrusion forming system can load micro forming workpiece and die with vertical ultrasonic resonant vibration. It can also satisfy the requirement of micro extrusion forming process with ultrasonic vibration of workpiece.

导出引用

彭卓1 韩光超1,2,3 李凯1 陈昊1. 超声辅助微挤压成形系统设计[J]. 振动与冲击, 2017, 36(15): 259-264

PEN Zhuo 1, HAN Guangchao 1,2,3,LI Kai 1, CHEN Hao1. Design of ultrasonic-assisted micro extrusion forming system[J]. Journal of Vibration and Shock, 2017, 36(15): 259-264

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