Ultrasonic Inserts
Source: Penn Engineering
SI ultrasonic inserts provide strong, durable threads in plastic materials and are designed for permanent installation in plastics using either high-frequency vibration or a thermal press
Penn Engineeringic inserts provide strong, durable threads in plastic materials and are designed for permanent installation in plastics using either high-frequency vibration or a thermal press. The inserts enable quick and easy assembly and disassembly of electronics, automotive, aerospace and communications equipment. Made of brass or stainless steel, the inserts can be installed ultrasonically by pressing the fastener into a mounting hole while applying a high-frequency vibration. Frictional heat caused by the vibration melts the plastic around the insert. When the vibration ceases, the plastic solidifies, locking the insert permanently in place. A thermal press can also be used to create the heat necessary for installation.
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