Abstract: The present invention is an ultrasonic welding system having an ultrasonic welder integrated with a servo press for galling and ultrasonic welding of a first workpiece to a second workpiece. The first and second workpieces are substantially disposed between a confronting tip and stationary anvil of the ultrasonic welder. Prior to welding, the servo press preferably quickly moves the tip toward and generally against the first workpiece. During welding, a variable speed motor of the servo press preferably slowly moves the tip toward the anvil compressing the workpieces together while a transducer of the ultrasonic welder transmits mechanical vibration to the tip for welding the workpieces together.