Design of the Metal-Welder Ultrasonic Transducer by Using Finite Element Analysis

Abstract:

In this paper the optimized design of ultrasonic metal welding transducer has been done by using the finite element analysis method and the Screwing torque test. The converter part, boost part and horn part are all taken into account here. The p-wave propagation on the face and s-wave on the flange are approved primely. With the binding force changes, the mechanical Q value of transducer changes also followed. Therefore the amplitude of the output energy will be affected. Through the experiment the optimal design of the Screwing torque output were achieved. Metal Ultrasonic welding has its own special requirements. And the mechanical vibration frequency of the transducer is set as 20 kHz here. At last phase and frequency characteristics of the transducer were measured with Impedance Analyzer Test.

• Periodical: Applied Mechanics and Materials (Volumes 511-512)
• Pages: 1114-1117
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.511-512.1114
• Online since: February 2014
• Authors: Wen Jie Yu, Tao Yu, Sung Jun Park
• Keywords: Screwing Torque, Transducer, Ultrasonic

References

[1] Lorenzo Parrini, Design of Advanced Ultrasonic Transducers for Welding Devices, IEEE Trans. Sonics Ultrason. Vol 48, No 6, 1632～1639, Nov (2001).

DOI: 10.1109/58.971714

[2] Shuyu, L., 2004, Optimization of the Performance of the Sandwich Piezoelectirc Ultrasonic Transducer, J. Acoustic Soc. Am., Vol. 115, pp.182-186.

[3] Miodrag Prokic, Piezoelectric Transducers Modeling and Characterization, 2004, August.

[4] J. Tsujino, T. Ueok, Y Suzaki, K Uchida, Ultrasonic Butt Welding of Thick Metal Plate Specimens Using a Capacity Static Induction Thyristor Power Amplifier, IEEE Ultrasonic Symposium, 371～374, (1990).

DOI: 10.1109/ultsym.1990.171389

[5] Ned Mohan, Tore M. Undeland, William P. Robbins, Power Electronics, WILEY.

[6] Timothy L. Skvarenina, The Power Electronics Handbook, CRC PRESS.