Threaded inserts, grub screws or other parts can be ultrasonically embedded in thermoplastics.


Melting and forming of a plastic stud to retain or lock another material, often dissimilar, in place.


Used for joining two thermoplastic parts with no pre-formed hole or energy director. This technique is particularly suited to large parts or parts with complicated geometry and thermoformed or blow-molded parts without a joint.


Used to capture another component of an assembly by melting and reforming a ridge of plastic around the component. The ridge locks the second component in place without welding the materials together.