The linear vibration welding consist to generate heat and melting plastic by superficial molecular friction, this effect is obtained from mechanical movements in longitudinal by vibration welding machines that operate at low frequencies which are typically between 100 Hz and 240 Hz
Typically the amplitude of displacement may vary from 1.8 to 4 mm. The weld time can be between 2 and 8 seconds more the cooling time. Although this time be bigger than the rotational friction welding or ultrasound, is much smaller than the cycles of hot plate welding or solvent.
The weld made by friction allows join basically all plastic resins, as amorphous or crystalline, and in many cases, be applied not similar materials.Important feature compared to other welding processes. Another difference is larger areas of welding and joining of parts with complex geometric shapes. Among them parts and plastic components used by the automotive industry, aerospace and shipbuilding, such as bumpers, front panels, glove boxes, door panels, oil tanks, valve covers, intake manifold, inner panels of aircraft parts, home parts and many others.