Torsion sonotrode and ultrasonic welding procedure using a torsion sonotrode

摘要

Torsion sonotrode (S) with a contact surface (1, 1 ') for the transmission of a torsion oscillation directed around a torsion axis (T) on a component to be welded (4), in which the surface of contact (1, 1 ') has a corduroy stop surface (2, 2') that extends essentially perpendicular to the torsion axis (T), characterized in that the elevations (3, 3 ') configured as islands from the stop surface (2, 2 ') extends with a pyramidal shape that ends at a point, which are spaced apart from each other by means of flat sections of the stop surface (2, 2'), and why a relationship between the stop surface (2, 2 ') and a total base surface of all elevations is in the range of 2.0 to 5.5.