Fiber laser marker | Whether the fiber laser marker machine can be applied to metal materials.
01 Jan

Fiber laser marker | Whether the fiber laser marker machine can be applied to metal materials.

Fiber laser marker machine uses a laser beam to print permanent symbols on the surface of various materials. The surface layer of the target material is evaporated by the laser light energy and the deep layer of the material is revealed; the chemical and physical changes of the surface material are caused by the laser light energy to "engrave" the desired pictures and characters; the laser light energy can burn off part of the material to reveal the desired etching pictures and text.

 

Fiber lasers are also well suited for marking metals. For different applications and different metals, the advantages shown by different lasers will also vary. Not only the type of laser, the duration of the pulse, the peak and average power of the pulse, but also the quality of the beam will affect the marking results. The high quality of the beam makes it possible to focus the laser beam on a very small spot, so that a high power density can be achieved on the surface of the workpiece. It is very suitable to use a laser as a tool for marking metal. fiber laser marker machine can engrave metal and non-metal materials. It is more suitable for some occasions requiring more precision and higher precision. However, for metals with higher reflectivity, such as aluminum, copper, and gold, they absorb only a small fraction of the infrared light. At the moment, choosing a short-wavelength beam (such as green light) can also bring good marking results, because the metal is more likely to absorb short-wavelength light.

 

Small area thermal effects Since the short-wavelength laser can focus better, the marking accuracy is higher when the outer surface area is small. The pulsed laser beam acts on the workpiece as a series of single-point pulses, which are either adjacent or stacked. Pulses can deliver a precise specific energy, allowing energy and heat to enter the material, as long as a small part of the area is affected by thermal and mechanical effects.