Aperture closing process involves friction or ultrasonic welding of closing element to component forming connecting region between cover surface and aperture

摘要

The aperture closing process involves using a closing element with a roughly circular cover surface of greater diameter than the greatest lateral expansion of the aperture. The closing element (10) is welded by friction or ultrasound to the component (1). A connecting region (17) is formed between the cover surface of the closing element and the region (14) surrounding the aperture.