At present, in addition to stainless steel laser cutting and carbon steel laser cutting, the metal processing industry also has a relatively wide demand for copper and aluminum. When purchasing 6kw fiber laser cutting machine, many customers will ask whether they can cut aluminum, copper and other high-reflective materials. In fact, the metal laser cutter was able to cut aluminum plates a few years ago. After continuous reform and innovation, cutting capacity has been significantly improved.
So what is high-reflective materials, how to judge it?
1. Resistivity judgment
The most conductive material is high-reflective material. The smaller the resistivity, the better the conductivity; the larger the resistivity, the worse the conductivity. Among common steels, the resistivity is increased by carbon steel, ferritic stainless steel, martensite and austenitic stainless steel.
2. Judging by the surface structure
If the surface of the material is very smooth, the absorption rate of the laser is small, it is a high anti-material.
It should be noted that if the surface is too smooth (even if it is not a high anti material under normal conditions), it is also a high anti material for laser processing.
3. Judging by surface condition
If its surface temperature is different, under the same laser irradiation conditions, its absorption rate of the laser is also different.
Generally speaking, when the temperature is high or the surface is liquid, the absorption rate of the laser is higher; the surface of the material is low temperature or solid, and the absorption rate is usually lower than the liquid state.
4. Judging by the laser output wavelength
In fact, everyone knows that high-reflective materials are very important in laser processing. However, many types of laser technology are affected by materials. Sometimes it will cause unstable operation and destructive automatic shutdown during processing. Even there will cause great damage to the laser, which invisibly shortens the life of the laser.
Everyone knows that high-reflective materials are very important in laser processing. The cutting effects are affected by materials. Sometimes it will also cause unstable operation and destructive automatic shutdown during processing, and damage the laser device. When cutting high-reflective materials, customers must not only pay attention to the debugging of the machine, but also have certain requirements for the operator's technology. Only in this way can both the cutting effect and the service life of machine be guaranteed.
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