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Four common laser mental cutting machine methods

Four common laser mental cutting machine methods

 

1. Melt cutting

In this way, when the laser mental cutting machine is irradiated on the surface of the metal material, the laser heat causes the entry to melt quickly, and the molten metal is blown away from the material by high-pressure inert gas coaxial with the beam (such as nitrogen, argon, helium, etc.) Thereby forming a slit. Compared with vaporized cutting, melt cutting can save a lot of energy, and is usually used for some metals that are not easily oxidized, such as stainless steel, titanium, aluminum and their alloys.

2. Vaporization cutting

The surface of the material is irradiated with light of extremely high power density, and the material is vaporized in a very short time, and the steam is blown away from the surface of the material, thereby forming a cut. The energy required to heat the material to the vaporization temperature is much greater than melting it, so vaporizing cutting is more energy consuming than melting cutting. Vaporization cutting is mostly used for very thin metal materials and non-metallic materials, such as plastics, wood, etc.

3. Oxygen cutting

Oxygen as a combustion aid can react violently with the metal heated by the laser to melt, generating a large amount of heat of oxidation, so in fact oxygen cutting is the “aerobic” version of melt cutting. Since metal burning generates heat, oxygen cutting is more energy-saving than melting cutting, but the cutting speed is much faster than melting cutting and vaporizing cutting. Oxygen cutting is mainly used to cut carbon steel, titanium steel and other easily oxidized metal materials.

4.scribing and controlled fracture cutting

Scribing is the use of high energy density laser to scan the surface of brittle materials. After the material is heated, it evaporates into a small groove. When a certain pressure is applied to the material, the brittle material will crack along the small groove.
Controlled fracture is the steep temperature distribution generated by laser mental cutting machine, which generates local thermal stress in brittle materials, causing the material to fracture along small grooves. For example, glass cutting.

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