Posts by James Stern

There are several different ultrasonic frequencies that can be used for plastic welding. The frequency is usually determined by the specific application.

There are several types of ultrasonic systems that are available. For more information on any of these systems please contact us.

Regrind is a term used that refers to plastic material that has been recycled or reprocessed and added to the original resin.

Infrared Welding is a form of non-contact plastic welding utilizing a heat array element that provides even heat distribution to the weld area.

In Directed Infrared Welding the parts being welded never come in contact with the infrared array, as they do with the hot platen in standard[…]

Frequency within the scope of ultrasonic welding refers to the number of vibrations per second that the ultrasonic stack can produce.

A thermoplastic which has a random molecular structure. Examples are ABS, Polycarbonate, and Polystyrene.

Semi-crystalline plastics require a high heat and high energy/amplitude. Semi-crystalline materials attenuate the vibrations more and are more "spongey".

There are many factors that can affect the weldability of plastic materials. Lubricants, modifiers, resin grade and age can all affect weldability.

Peak to peak value is the measure of amplitude in units of microns. It is the distance from the upper and lower peaks of the[…]