The third is to be cleaned material to absorb the laser energy, this energy is then heated cleaning agent, leading to explosive vaporization and remove particles. Experiments show that with laser-assisted surface cleaning methods get rid of the semiconductor particles is effective for highly integrated semiconductor devices to improve the yield shows a bright future. The application of laser technology in the automobile industry safety, comfort, energy saving and environmental protection have been the subject of the development of the world automobile industry, laser technology as a modern automobile production in the main processing methods, and its development is mainly around this theme and combine the characteristics of their own profession. The experts are holding the meeting to improve technology ofgreen laster pointer. The automotive industry is the most widely used laser processing areas. According to relevant statistics, in Europe and industrialized countries, 50% to 70% of the parts are done by laser processing. In particular, developed rapidly in recent years, there are around 1998, more than 3,000 laser processing machine for the automotive industry, but each year hundreds of laser processing machine in use. Used in automotive testing, rapid prototyping, low-power lasers now have thousands. In the automotive industry, the laser cutting process is usually based. Laser beam cutting is generally used high-power RF CO2 laser (IPG Germany in recent years has been the trend of high-power fiber laser replacement), in order to improve the cutting speed and cutting quality in laser beam cutting machines are generally equipped with a nozzle exit in order to while blowing gas cutting process. In cutting the metal parts are often blowing oxygen or compressed air, in order to improve cutting efficiency; cutting flammable materials in the injection of nitrogen and other inert gases to prevent burning. Technology perfection ofGreen laser pointerwill improve quality ofgreen laster pointer. Laser cut cutting path width generally less than 0.5mm (IPG's high power fiber lasers up to 0.05mm). It and the workpiece material and thickness, the laser beam power, focal length and focus position, laser beam diameter, the gas injection pressure and flow and other factors. In the car-like vehicles and small batch production in large-scale use three-dimensional laser beam cutting machine, for ordinary aluminum, stainless steel sheet, strip cutting, high-speed laser cutting speed has reached 10M/min, not only greatly reduced the production preparation period , and so achieve a flexible manufacturing plant, processing area is reduced by half. Because of its high efficiency, than the machining methods of processing costs by 50%. If the daily opening two classes. Depreciation period may be completed in 2 years. Laser welding in the automotive industry has become the standard technology. Laser welding for body panels of different thicknesses and can be coated with different surface coating of metal plates welded together, and then to press, so that structural panel made of metal to achieve the most reasonable combination. The quality ofgreen laster pointercannot be ensured with the technical problem unsolved. Laser welding speed of about 4.5M/min, and rarely deformed, eliminating the need for secondary processing. Accelerated the use of laser welding instead of forging parts stamping parts process. Laser welding can reduce the overlap width and some enhanced components, you can compress the size of their body structural parts. This alone can reduce body weight 56kg. Laser welding for welding the roof shell and frame, transmission converter cover weld by the CNC control, the cycle time is about 16 seconds, the actual welding time is only three seconds a day can run continuously for 24 hours. In recent years Germany IPG's meteoric rise in the manufacturing of advanced lasers, launched a commercial high-power fiber laser system, with the traditional CO2 laser and Nd: YAG laser has many advantages compared to: 1. Maintenance-free running time significantly longer than 50,000 hours; (traditional laser systems about 500 to 5000 hours) 2 volume / weight of conventional laser 1 / 5 ~ 1 / 10. The workshop is working on the technical problem ofgreen laster pointer. Power consumption as traditional laser 1 / 10 ~ 1 / 20; running costs and maintenance costs for the conventional laser system 1 / 10 ~ 1 / 100; 5 output beam quality than conventional laser a few times (this is of great significance, means less output power available for processing laser beam, the effect of a great power but also superior to the traditional needs of laser systems, significant savings in energy consumption and reduce costs. With German IPG's commercial launch of high-power fiber lasers, metal surface treatment process has been great progress which has broader application of laser coatings, laser alloying, laser polishing, laser shock hardening technology. The technical problem ofgreen laster pointeris very critical to quality.