Ultrasonic welding is a process that uses high-frequency sound waves to join materials, typically plastics or metals. The technique involves applying ultrasonic vibrations to the surfaces of the materials, which generates heat through friction. This heat softens the materials, allowing them to fuse together without the need for additional adhesives or fasteners. The process is quick and efficient, making it ideal for manufacturing applications. Ultrasonic welding is commonly used in industries such as automotive, electronics, and medical devices, where strong, reliable joints are essential. Its precision and ability to work with delicate components make it a popular choice for modern production methods.