In chip manufacturing, the chip size is small, but key information such as model and serial number need to be accurately marked. Laser marking machines can achieve micron-level or even higher precision marking, and clearly and permanently engrave the logo without damaging the performance of the chip. For example, the ultraviolet laser marking machine uses the principle of cold processing to break the chemical bonds of the material through high-energy-density ultraviolet photons, and finely marks the chip, avoiding chip damage that may be caused by thermal effects, and ensuring the high stability and reliability of the chip.

For circuit boards, laser marking can mark component locations, models and other information, helping to automate the assembly process. In the field of consumer electronics, such as the shells of mobile phones, tablets and other devices, laser marking machines can engrave brand LOGO, product model, anti-counterfeiting code, etc., which not only improves the aesthetics of the product, but its permanent marking can also effectively prevent the product from being counterfeited and maintain the brand image. For metal materials like the back cover of mobile phones, laser marking can form high-contrast, wear-resistant marks; while for plastic shells, laser marking can achieve clear markings by changing the surface structure or color of the material.

In the manufacturing of automotive parts, key components such as engines, transmissions, chassis, etc. need to be marked with unique serial numbers, production batches and other information to facilitate quality tracking and after-sales service in subsequent use. The information marked by the laser marking machine is clear, permanent, wear-resistant and corrosion-resistant, and can withstand various harsh environments during the use of the car. For example, on the engine block, the laser marking machine forms a deep, clear and readable mark on the metal surface by precisely controlling the laser energy and spot. Even if the engine is subjected to extreme working conditions such as high temperature and high pressure, the mark is still completely identifiable.

In terms of automotive interiors, laser marking machines are also widely used. Personalized logos and brand patterns can be engraved on leather seats; brand logos and function instructions can be marked on steering wheels; and decorative parts such as door panels, center consoles, and instrument panels in the car can be engraved with text, numbers, patterns, etc. through laser marking to meet the identification needs in the production process, while improving the overall texture and personalization of the interior.

For surgical instruments, such as scalpels, tweezers, scissors, etc., it is necessary to clearly mark the model, specification, production batch and other information so that they can be identified and traced during use, cleaning, and disinfection. The information marked by the laser marking machine will not be blurred or fall off due to multiple disinfection and sterilization, ensuring the traceability of the entire life cycle of the device. For example, a short-pulse fiber laser marking machine is used to mark stainless steel surgical instruments. After more than 500 disinfection and sterilization, the mark is still clearly visible and there is no obvious corrosion on the surface of the instrument.

In the field of implantable medical devices, such as pacemakers, artificial joints, bone screws, etc., laser marking is even more critical. These devices are in direct contact with human tissue and have extremely high requirements for the biocompatibility of the marking. Laser marking can accurately mark key information such as product model, serial number, production date, etc. without affecting the performance and biosafety of the device, meeting the strict requirements of medical device regulatory authorities for product traceability. At the same time, laser marking can also be used for micro-marking of medical devices, such as marking micro QR codes on the surface of tiny devices such as dental implants to achieve accurate traceability and anti-counterfeiting.

Compared with traditional inkjet coding, laser marking is a non-contact process that does not pollute food packaging, ensuring food safety. At the same time, the marks formed by laser marking are clear and durable, and are not easily blurred or faded due to environmental factors such as friction and moisture. On food plastic packaging, laser marking machines can form high-contrast marks by changing the physical or chemical properties of the plastic surface; on paper packaging, laser marking can achieve clear text and pattern engraving. In addition, for some special-shaped packaging or small-sized packaging, laser marking machines can flexibly adjust marking parameters to achieve accurate and efficient marking to meet the diverse packaging needs of the food industry.