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An ultrasonic insert refers to a type of threaded insert that is designed to be installed using ultrasonic welding techniques. These inserts are typically made of metal and feature threads on the inside to allow for the attachment of screws, bolts, or other threaded fasteners.

Ultrasonic welding is a process in which high-frequency ultrasonic vibrations are applied to materials being joined together, causing them to heat up and melt at the interface. The ultrasonic insert is placed into a pre-drilled hole in the workpiece, and then ultrasonic energy is applied to bond the insert to the surrounding material. This creates a strong, permanent attachment point for fasteners.

Ultrasonic inserts are commonly used in industries where high-strength, reliable connections are required, such as automotive, aerospace, and electronics manufacturing. They offer advantages such as fast installation, minimal heat distortion, and the ability to bond dissimilar materials together.