Ultrasonic Welding
Ultrasonic Welding is a welding method typically used
on plastics. Ultrasonic welding joins two pieces of plastic
by creating friction, and thus heat, between the two parts
and applying pressure. This friction is caused by ultrasonic
sound vibrations. It is typically used in procedures where
the two parts to be joined are too small, complex, or fragile
to be joined using other methods. Possible applications for
ultrasonic welding include automotive applications, cosmetics,
computers, domestic appliances, the toy industry, medical
applications, electronics, textiles, packaging, and the food
industry. Ultrasonic welding depends on the geometry of the
parts to be welded. Since ultrasonic welding does not use
any materials beyond the two welded pieces of plastic, it
is a highly efficient process.
In an ultrasonic welder, the two parts to be
welded are placed between an anvil and a sonotrode, or "horn".
The horn, connected to a transducer that converts an electric
control signal into mechanical motion, delivers ultrasonic
energy to the plastic parts. Ultrasonic welding depends on
the geometry of the parts to be welded. At points at the interface
of the two parts that have been engineered specifically for
ultrasonic welding, the ultrasonic vibration causes enough
friction to generate the heat required to melt the plastics
and cause a weld. After the plastic cools, the result is a
strong and lasting bond.
Plastic Assembly Systems offers a large range
of ultrasonic welders and ultrasonic welding equipment including
ultrasonic horns and tips for ultrasonic welding. We manufacture
horns, amplitude boosters, and converters in 15 kHz, 20 kHz,
30 kHz and 40 kHz from high-grade alloys. We offer both standing
models and hand held pistol ultrasonic welders. We also have
a large stock of used ultrasonic welding units and accept
trade-ins during the purchase of a new ultrasonic welding
unit. Plastic Assembly Systems also has a leasing program
for ultrasonic welders.
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