| 摘要 |
In the ultrasonic welding process according to the invention, an additional element 3, besides the ultrasonic welding probe (2), is used as a holding-down device which vibrates at the same ultrasonic frequency as the ultrasonic welding probe 2 but with reduced amplitude, is in contact with areas outside the bearing surface of the ultrasonic welding probe 2 and dampens these externally located surfaces or parts or masses which are in contact with the ultrasonic welding probe itself or lie directly next to the bearing surface of the ultrasonic welding probe 2. Thus areas or parts of the object to be welded which protrude and/or have a relatively large mass and/or areas with a small wall thickness are prevented from fracturing or breaking off or the object to be welded is prevented from being detrimentally affected during the welding operation. Furthermore, an apparatus for carrying out the process according to the invention is specified, the additional element 3 being arranged in the interior of a hollow ultrasonic welding probe 2. The disadvantages with regard to the vibration behaviour of the ultrasonic welding probe which occur when bores are formed in the wall of the ultrasonic welding probe are avoided by the bores being sawn from the welding surface or towards the welding surface and by the welding surface of the welding probe being split up into welding-surface segments. <IMAGE> |
