METHOD FOR SEALED WELDING OF ELEMENTS USING ULTRASOUND

摘要

The invention relates to a method for the sealed welding of a first element, made of a first material, to a second element, made of the first or of a second material, using ultrasound, wherein an intermediate element is disposed between the first element and the second element in an area to be connected and sealed and then ultrasonic oscillations are transmitted by way of a sonotrode. To ensure that the desired sealing weld connection can be provided even in areas in which the intermediate element and/or the first and/or the second element partially overlap, it is proposed that the intermediate element used is one that comprises perforations that are open both toward the first element and toward the second element, said perforations being filled with the material of the intermediate element during welding, at least in areas.