Ultrasonic welding apparatus.

摘要

In an ultrasonic welding tool with a longitudinal oscillation-generating sonic transducer (1) coupled to one end of a resonator (3) of length one or more times lambda/2, the novelty is that a second longitudinal oscillation-generating sonic transducer (2) is coupled to the free end of the resonator (3) and oscillates synchronously with the first transducer (1).