Views: 0 Author: HanTenCNC Publish Time: 2021-10-27 Origin: Site
Many products or components made of stainless steel require some form of marking. Whether this mark is a simple alphanumeric code indicating the production date or part number, or a more complex barcode or data barcode, fiber laser printers can print it. Fiber laser printers can print single-line fonts, hollow fonts or solid fonts. In short, any font that can be printed on paper can be printed on metal. Some markings are quite complex, such as functional markings such as scales commonly found on tools or meters. Fiber laser marking machine can also print more complex decorative patterns.
According to the characteristics of non-irradiation and stainless steel grades, stainless steel has a very significant response to laser, and various visual effects can be obtained. Using a pulse with sufficient energy to locally melt the surface, the laser can produce a series of small pits on the surface. The locally melted small pit metal chemically reacts with the oxygen in the atmosphere to form a black mark that can be touched. When the pulse energy increases, some materials evaporate, and the melt in the small pit is pressed to squeeze out the melt, which produces a splashing effect, which significantly improves the visual quality and gives a feeling of carving.
If a lower energy intensity is used, a longer mutual reaction time can achieve completely different effects. Without melting the metal, it can form a deep black surface mark known as annealing spot in the industry. More precisely, it is a high-contrast black oxide spot that has no effect on the roughness or texture of the material surface. This kind of marking is usually widely used in daily consumer goods, and may be used more in medical surgical instruments with stricter marking requirements, which can ensure that medical surgical instruments will not rust after repeated sterilization. This challenge is severe and requires careful control of pulse conditions and heat input rate. The flexibility of the fiber laser marking machine and the controllable pulses it generates make this surface marking possible.
The fiber laser marking machine can also print pure white marks on stainless steel. Moreover, by controlling the laser energy, a very short low-energy pulse can be used to generate a very small melt, so that it can be solidified before oxidation to print a grid, and a solid white mark can be generated. Because of its beautiful appearance, it is usually used in consumer goods such as cameras and mobile phones. This type of marking also has a significant impact on the physical properties of the material, such as the waterproof performance of the material.
Another purpose of fiber laser marking machine is to use very short low-energy pulses with a repetition rate of up to 1MHZ to polish the stainless steel with wire drawing, so that only the micro convex part of the textured surface of the wire drawing is melted. The resulting remelting can effectively polish the material and make the material have a reflective effect.
Therefore, the combination of fiber laser marking machine and stainless steel can produce a lot of different effects.