Abstract: The invention relates to a method for ultrasound welding of a first and a second component, whereby the first component contains a recess for the reception of first and second protrusions of the second component, with the following steps: Positioning of the first and the second components so that the first and second protrusions protrude into the recess and touch a floor of the recess, Transmission of an ultrasound oscillation for the generation of a relative movement between the first and the second components, whereby the floor is pressed against the first and second protrusions, so that first protrusion is deformed in a first direction and second protrusion in a direction opposite to the first direction, and that at least a first welding connection between the first protrusion and the floor and a second welding connection between the second protrusion and the floor are formed.

Abstract: The invention relates to a method for the ultrasound welding of a first (100) and a second component (108), the first component having a recess (102) for accommodating first (112) and second projections (114) of the second component, comprising the following steps: positioning the first and second components in such a way that the first and second projections project into the recess and touch a bottom (104, 104?) of the recess, transmitting an ultrasound vibration for generating a relative movement between the first and second components, the bottom being pressed against the first and second projections so that the first projection (112) is deformed in a first direction while the second projection (114) is deformed into a second direction that is counter to the first direction, at least one first welding connection (130, 104) being formed between the first projection and the bottom and a second welding connection (132, 104) being formed between the second projection and the bottom.