1. Highly reflective material

A fiber laser cutting machine is a processing equipment that uses the thermal energy of laser beams to cut materials into desired shapes. For highly reflective materials, because the surface is highly reflective of the laser beam, it is difficult for the laser beam to penetrate and produce a cutting action, resulting in poor or no cutting effect.

Highly reflective materials include metals, copper, aluminum, etc., which have high reflectivity and high thermal conductivity. For such metals, the wavelength of the laser light is not in the ideal absorption range for these materials. When the laser beam is irradiated on the surface of these materials, most of the laser energy is reflected in the laser cutting head, and only a small part of the energy can be absorbed into the surface of the material. Part of the energy is reflected and will damage the protective lens of the laser cutting machine.

2. Not Applicable Wavelengths

Materials outside the wavelength range of fiber laser cutting machines.

Fiber laser cutting machine is mainly used ed in the cutting machines of metal cutting machine. For some materials whose wavelength absorption range exceeds the wavelength of the fiber laser cutting machine, the ideal range cannot be achieved.

Specifically, the laser beam in the fiber laser cutting machine is mainly designed for the absorption rate of the metal material, because the metal has a high absorption rate for the laser and can quickly heat the metal material to the evaporation point. A laser beam heats and vaporizes the metal material, thereby cutting it. This is determined by the wavelength range of the fiber laser cutting machine.

3. Non-metallic materials

Fiber laser cutting machines are mainly used in the cutting work of metal cutting machines and usually cannot cut non-metallic materials. Examples include wood, plastic, glass, MDF, and wood-based panels. The absorption rate of non-metallic materials to laser beams is relatively low, and it is difficult to quickly heat up to a sufficient temperature to evaporate the material. When cutting with a fiber laser cutting machine, the following problems will be encountered

3.1. Different materials:

Non-metals have lower thermal conductivity and higher absorption than metal materials. This means that it is difficult for a laser beam to generate high enough heat energy on its surface that it cannot be evaporated quickly.

3.2. Different structure:

Non-metallic interiors usually contain a large amount of air and other materials. This structure will cause the laser beam to be scattered and absorbed, resulting in a poor cutting effect.

The principle of a fiber laser cutting machine is to use a laser beam to heat and vaporize metal materials, thereby cutting them. For non-metallic materials, such as wood, plastic, and glass, their chemical and physical properties are very different from those of metal materials, so different cutting methods are required, such as mechanical cutting, laser engraving, and water jet cutting. These methods can be selected according to different materials and required cutting accuracy, and the most suitable cutting method needs to be selected according to the actual situation.