Ultrasonic plastic welding is the joining
or reforming of thermoplastics through the use of heat generated from
high-frequency mechanical motion. It is accomplished by converting
high-frequency electrical energy into high-frequency mechanical motion. That
mechanical motion, along with applied force, creates frictional heat at the
plastic components' mating surfaces (joint area) so the plastic material will
melt and form a molecular bond between the parts. Plastics assembly is a
fast, clean, efficient, and repeatable process that consumes very little
energy. No solvents, adhesives, mechanical fasteners, or other consumables are
required, and finished assemblies are strong and clean.
Using ultrasonic welder has many advantages over traditional methods. For one, welding occurs at low temperatures relative to other methods. So, the manufacturer does not need to expend vast amounts of fuel or other energy to reach high temperatures. This makes the process cheaper. It's also faster and safer. The process occurs in fractions of a second to seconds. So, it can be done more quickly than other methods. Ultrasonic welding does not require flammable fuels and open flames, so compared to other welding methods, it's a safer process. Workers are not exposed to flammable gases or noxious solvents. Finally, ultrasonic welds are as strong and durable as conventional welds of the same materials. Ultrasonic welding can be used to bond the metal in less time and at lower temperatures than traditional welding.
The process of ultrasonic welding allows assembly of thermoplastic composite parts.An understanding of ultrasonic welders helps designers apply this assembly method efficiently.
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