Laser marking machine technology is one of the largest application areas of laser processing. Laser marking, as an emerging high-tech marking method at present, is a marking method that uses high-energy-density laser to partially irradiate the workpiece, so that the surface material evaporates or undergoes a chemical reaction of discoloration, thereby leaving a permanent mark. Laser marking can print various characters, symbols and patterns, and the size of characters can range from millimeters to microns, which has special significance for product anti-counterfeiting. Compared with traditional marking methods such as mould, electro-etching marking, self-adhesive, screen printing, start-up marking, etc. , it has the characteristics of fast processing speed, high precision and no fading. At the same time, laser marking is a non-contact processing process, there is no mechanical effect in the processing process, and it will not damage the material on the surface of the processed object. So now, in order to ensure the marking effect of parts, automakers widely use lasers to mark part information. In addition, the laser equipment adopts computer software control system, which has strong compilability and stable performance. It can not only edit the pattern and text of auto parts, but also meet the current needs of mass production and personalized customization, and provide more manufacturable space for current car design and manufacturing. At present, people pay more and more attention to safety while paying attention to the performance of automobiles. Auto parts are multi-variety and mass-produced. At present, quality control mainly uses spot checks, which belong to backtesting, and cannot play a role in prevention and control during the production process. Now, through information tracking, we can transform quality control from post-inspection to pre-prevention, and laser marking plays an important role in this link. Using the information of laser marking parts, through online monitoring, abnormal parts can be found and eliminated in time, preventing defective products in production and checking product quality. And for those defective products that cannot be detected during production, we can trace the information through the information marked on the parts, so as to quickly determine the cause and batch of the defect, and make a quick response in time. This not only effectively improves the quality of auto parts, but also ensures the driving safety of the car, giving each of our car passengers an extra guarantee, and avoiding some accidents caused by minor faults. In the field of auto parts processing, laser marking machines are mainly used to mark information such as two-dimensional codes, bar codes, clear codes, production dates, serial numbers, logos, patterns, certification marks, and warning signs. Including high-quality marking of automotive wheel arcs, exhaust pipes, engine blocks, pistons, crankshafts, sound-transmitting buttons, labels (nameplates) and other accessories.