Ultrasonic welding is a method of bonding together two parts made of the same or chemically compatible materials using high frequency ultrasonic vibrations that create a solid state weld between them. The advantage of ultrasonic welding plastics is that within seconds a high strength, gas and water tight bond is formed without screws, glue, threads, solder or any other type of bonding material. Parts that have been welded do not need to be left in a jig for curing, making them immediately useable in an automation line. The ultrasonic welding of plastics is an eco-friendly process that consumes very little energy while producing a cost effective, permanent, and clean weld. The process is used in the electrical, computer, automotive, aerospace, medical, and packaging industries, to name a few.