Laser processing technology is mainly used in smart phones in three aspects: laser marking and micro-processing, laser welding and laser cutting. In terms of marking, we are all familiar with the logo and laws and regulations of laser marking can be seen in the cell phone case, battery and other parts. In terms of laser pointer micro-processing, the multi-station precise splicing technology makes the outer frame more beautiful. In glass micro-processing, “breath breath” is required to display characters, which plays a good role in anti-counterfeiting. There are also invisible information reminding patterns, such as breathing lamp and indicator lamp.
Wan always introduces the work system and a variety of laser welding and welding application, including dual cameras fixed plate automatic welding process and welding line location, fingerprint identification module, welding system, spring bracket welding workbench, flat welding workstation, USB metal shell welding workstation, laser welding, mobile phone connector joint device configuration characteristic of medium plate and welding technology.
In laser cutting, wan introduced the application of ultra-fast laser in glass cutting, drilling and three kinds of laser precision cutting machines. Wan zong said that CO2 laser cutting machine can be used for cutting and displaying modules of glass front cover and back cover PET film (3D film, diamond film, colorful film) and backlight module (polarizer, reflector, diffuser, light guide plate). Metal laser cutting machine is used for the precision cutting of middle plate, sim card needle, logo, heat dissipation micro hole, waterproof micro hole and so on. Ceramic laser cutting machine is used for cutting ceramic frame and ceramic back cover.
In addition, wan zong also introduced the application of laser in wireless charging (Tx terminal and Rx terminal). At the Tx end, the laser is mainly reflected in the marking of the motherboard PCB and charging shell, as well as CO2 and green laser used for cutting nanometer lattice magnetic sheet. At the Rx end, the laser is used to peel and cut the wound coil.