Tsujino J, Ueoka T, Otoda K, Fujimi A
Faculty of Engineering, Kanagawa University, Yokohama, Japan.
Ultrasonics. 2000 Mar;38(1-8):72-6. doi: 10.1016/s0041-624x(99)00175-4.
For increasing the available vibration velocity of the one-dimensional longitudinal-torsional vibration converter, a new type of complex vibration converter with multiple slitted parts installed in the positions avoiding longitudinal nodal positions along the converter for decreasing the maximum vibration stress level at the vibration nodal part was studied. The free end of the converter vibrates in an elliptical or circular locus. Complex vibration systems with elliptical to circular or rectangular to square loci can be applied effectively for various high-power applications, including ultrasonic welding of metal or plastics, ultrasonic wire bonding of IC, LSI and electronic devices, and also ultrasonic motors. The converter with multiple slitted parts was improved in the vibration stress level and the quality factor compared with the converter with single slitted part.
为了提高一维纵向扭转振动换能器的有效振动速度，研究了一种新型复合振动换能器，该换能器在沿换能器避免纵向节点位置处安装了多个开槽部件，以降低振动节点部分的最大振动应力水平。换能器的自由端在椭圆或圆形轨迹上振动。具有从椭圆到圆形或从矩形到正方形轨迹的复合振动系统可有效地应用于各种高功率应用，包括金属或塑料的超声焊接、IC、LSI和电子设备的超声引线键合，以及超声电机。与单开槽部件的换能器相比，具有多个开槽部件的换能器在振动应力水平和品质因数方面都有改进。
