Title :
Ultrasonic butt welding of large metal plates shifting welding tip driving position at regular spaces along the specimens
Author :
Tsujino, Jiromaru ; Ueoka, T. ; Watanabe, Issei ; Ogawa, Michiko ; Hirasawa, Masakazu
Author_Institution :
Fac. of Eng., Kanagawa Univ., Yokohama, Japan
Abstract :
The welding characteristics of large metal place specimens using an ultrasonic butt welding system with a 15-kHz large capacity vibration source are studied. The vibration source has eight 15-kHz bolt-clamped Langevin-type lead zirconate titanate (PZT) transducers of 60-mm diameter driven by a 50- or 100-kW static induction thyristor power amplifier. Aluminium plates of 6-mm thickness and 100-mm to 400-mm width are successfully joined end-to-end by changing welding tip driving positions. The required input power is about 2.2 kW/cm2. Aluminium and copper plate specimens were also joined successfully by about 4 kW/cm2 input power
Keywords :
ultrasonic welding; 100 kW; 15 kHz; 50 kW; Al plates; PZT transducers; PbZrO3TiO3; changing welding load; large capacity vibration source; large metal plates; static induction thyristor power amplifier; ultrasonic butt welding; Acoustic applications; Aluminum; Clamps; Copper; High power amplifiers; Power amplifiers; Thyristors; Ultrasonic transducers; Vibration measurement; Welding;
Conference_Titel :
Ultrasonics Symposium, 1992. Proceedings., IEEE 1992
Conference_Location :
Tucson, AZ
Print_ISBN :
0-7803-0562-0
DOI :
10.1109/ULTSYM.1992.275862
