Laser generation: Fiber laser marking machine uses fiber laser, and laser is transmitted through optical fiber. The laser medium inside the laser (usually erbium-doped fiber) generates laser after excitation.
Beam focusing: The laser is focused into a fine laser beam through an optical system, and the energy density of the laser beam is very high.
Marking process: When the laser beam is irradiated to the surface of the object, the heat energy of the laser causes the surface of the object to melt or vaporize instantly, leaving a permanent mark on the object. This method can produce very wear-resistant and durable marks.
Laser generation: CO2 laser marking machine uses CO2 gas as the laser medium, and the laser excites gas molecules through electric current to generate infrared laser.
Beam transmission: The laser is transmitted through mirrors and lenses, and finally focused into a fine laser beam.
Marking process: When the laser beam is irradiated to the object, the heat energy of the laser causes the surface of the material to evaporate or burn. Patterns or text are formed on the surface of the material, usually with slight depressions or scorch marks.
Laser generation: UV laser marking machine uses ultraviolet laser, usually solid-state laser. The laser wavelength is short (about 355 nm) and has high energy density.
Beam focusing: The laser is focused by the optical system to form a small laser beam.
Marking process: The low thermal effect of UV laser prevents the surface of the material from being overheated under laser irradiation, thus avoiding thermal damage. The laser beam can trigger a photochemical reaction of the material, resulting in a permanent mark on the surface of the material.
1. Fiber laser marking machine is suitable for metal
High energy density: The laser produced by fiber laser has a high energy density and can concentrate a large amount of energy on the metal surface in a short time, thereby effectively melting or vaporizing the metal.
Deep penetration: Fiber laser has strong penetration into metal and can produce durable and wear-resistant marks on the metal surface. It is suitable for various metal materials such as stainless steel, aluminum, copper, etc.
Fast marking: The high efficiency of fiber laser marking machine makes it very suitable for marking metal parts in large-scale production.
2. CO2 laser marking machine is suitable for wood products
Suitable for non-metallic materials: The infrared laser produced by CO2 laser has a long wavelength, which is very suitable for marking non-metallic materials such as wood, paper and plastic.
Thermal evaporation: CO2 laser can evaporate the fibers on the surface of wood to form a clear mark or engraving without causing too much thermal damage to the material.
Rich colors and details: On wood, CO2 laser can produce rich colors and delicate patterns by adjusting the laser parameters, which is suitable for personalized and decorative marking.
3. UV laser marking machine is suitable for marking glass
Short wavelength laser: UV laser has a short wavelength (about 355 nm) and can produce photochemical reactions on the surface of the material instead of relying on heat energy. This makes UV laser particularly suitable for brittle and heat-sensitive materials.
Avoid thermal damage: Due to the low thermal effect of UV laser, materials such as glass or plastic will not be overheated during the marking process, thus avoiding cracks and deformation and ensuring the quality of the mark.
High-precision marking: UV laser can produce extremely high marking clarity and details, suitable for applications that require high-quality marking, such as electronic components and high-end glass products.
According to the different characteristics of the material, choosing the right laser marking machine will ensure the best marking effect and material protection.
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