The service life of ultrasonic welding is mainly determined by the following points.
Ultrasonic welding of horn materials requires metal materials to have the characteristics of good flexibility (small mechanical loss in the process of sound wave transmission), so the most commonly used materials are aluminum alloys and titanium alloys. However, ultrasonic metal welding requires wear resistance of the welding head (higher hardness is required), which makes the selection of materials more difficult, because hardness and toughness are inherently opposed, which requires the selection of high-quality steel materials with very high requirements, so that the The effective life of the welding head is maximized. So the cost is high.