title: Welding characteristics of 27, 40 and 67 kHz ultrasonic plastic welding systems using fundamental- and higher-resonance frequencies.
abstract: The welding characteristics of 27, 40 and 67 kHz ultrasonic plastic welding systems that are driven at only the fundamental-resonance frequency vibration were compared, and also those of the welding systems that were driven at the fundamental and several higher resonance frequencies simultaneously were studied. At high frequency, welding characteristics can be improved due to the larger vibration loss of plastic materials. For welding of rather thin or small specimens, as the fundamental frequency of these welding systems is higher and the numbers of driven higher frequencies are driven simultaneously, larger welded area and weld strength were obtained.
authors.affiliation: Faculty of Engineering, Kanagawa University, 3-27-1 Rokkakubashi, Kanagawa-ku, Yokohama 221-8686, Japan. tsujino@cc.kanagawa-u.ac.jp
authors.forename: Jiromaru
authors.initials: J
authors.lastname: Tsujino
authors.forename: Misugi
authors.initials: M
authors.lastname: Hongoh
authors.forename: Masafumi
authors.initials: M
authors.lastname: Yoshikuni
authors.forename: Hidekazu
authors.initials: H
authors.lastname: Hashii
authors.forename: Tetsugi
authors.initials: T
authors.lastname: Ueoka