ULTRASONIC WELDING OF METALS AND POLYMERS
The research is carried out by the Institute for Industrial Mathematics in cooperation with Microswiss Co. and is financially supported by the Israeli Ministry of Science through grant 9641--1--96.
Ultrasonic welding is a comprehensive technological process for producing bonds between metals and polymers by high-frequency vibration (from 20 to 120 kHz). It is widely used in microelectronics (wire bonding for joining microstructures into circuit packages), and in manufacturing advanced thermoplastic composites, because
The aim of the study is to design advanced mathematical models for ultrasonic welding, which include as components the following submodels:
The objectives are (i) to derive complex models, which could correctly predict the bond strength for given technological parameters and geometry of sonotrons; and (ii) to apply these models for optimal design of capillaries which ensure the required strength of bonds produced by ultrasonic welding.