Traditional plastic welding uses ultrasonic welding, but ultrasonic welding has certain limitations, such as contact welding is not conducive to a large number of automated production, contact welding makes the product has a certain probability of mechanical wear, mechanical will lead to residual stress inside the product, reduce the mechanical properties of the product itself. With the development and popularization of laser and laser plastic welding technology, laser has also developed and promoted plastic stress welding. Compared with ultrasonic welding, the advantages of laser plastic welding in the welding of plastic parts include: welding accuracy, firmness, sealing, sealing, air permeability, water leakage, and less resin degradation during the welding process.
Laser plastic welding method is easy to control, welding small size or complex shape structure of the workpiece. Because the laser welding process is controlled by computer software, the laser output can flexibly reach every fine part of the part, laser plastic welding can weld areas that are not easy to reach by ultrasonic welding methods, and welding products with complex shapes and even three-dimensional geometric shapes;
Compared with ultrasonic welding method, laser plastic welding greatly reduces the vibration stress and thermal stress of the product. This means that the internal components of the product or device age at a slower rate and can be used for products that are easily damaged. A variety of different materials can be welded.