Torsion sonotrode and ultrasonic welding process using a torsion sonotrode

摘要

The invention relates to a torsion sonotrode (S) having a contact surface (1, 1′) for transferring a torsional oscillation directed about a torsion axis (T) onto a component (4) to be welded. To ensure that the welded joint has a uniform strength, it is proposed according to the invention that the contact surface (1, 1′) has a flat stop surface (2, 2′) which runs substantially perpendicular to the torsion axis (T) and from which elevations (3, 3′) of insular design extend with a pointed form.

主权项

1. A torsion sonotrode comprising:
a contact surface for transferring a torsional oscillation directed about a torsion axis onto a component to be welded, wherein the contact surface has a flat stop surface extending substantially perpendicular to the torsion axis and projections extending from the flat stop surface and having a pointed shape, said projections are spaced apart from one another by flat sections of the stop surface, and a ratio of the stop surface to a total base area of all the projections is in a range of 2.0 to 5.5.