The materials are connected in a cold friction welding process, under influence of pressure and high frequency mechanical vibrations. The ultrasonic welding is a form of friction welding.The friction generates heat in the weld, but far from the melting point of the componentsIn metallic compounds a durable, metallic pure compound with good electrical properties is formed in a short time. The strength of this connection is up to 80% of the strength of the base metal. The vibration movement can be straight (longitudinal) or wiping (PowerWheel technology).