Ultrasonic Welding is a means of fastening two similar, or dissimilar, materials together without the use of mechanical fasteners. It differs from hot gas Plastic Welding in that it melts the parent materials together to form the weld rather than adding additional material to the process.
Ultrasonic Welding uses high frequency sound waves to soften the material and melt the pieces of thermoplastic together. Parts are held together under pressure and the ultrasonic vibration is applied. Welding time is typically very short.
Ultrasonic Welding can be used in applications where:
- Mechanical fasteners can’t be used
- The area to be fastened is hard to reach
- Primary surface aesthetics are a concern