威廉希尔官方下载

Principle of Crystal Laser 3D Engraving

威廉希尔官方下载Apr 22, 2020

When it comes to laser, we can easily think of its application in machining. However, in addition to its industrial application, laser technology also has many applications in-process products. Laser engraving is based on numerical control technology and the laser is used as a processing medium. Under the irradiation of laser engraving, the physical denaturation of melting and gasifying takes place immediately, so as to achieve the purpose of engraving. Laser engraving is the use of laser technology to write characters on objects. The characters carved by this technology are not scored, the surface of objects is still smooth, and the handwriting will not be worn.

When it comes to laser made crafts, the first thing we think about is crystal engraving. The crystal is smooth and hard without any cracks. People who don't know the technology principle behind it can't figure out how the internal pattern is made?

In fact, most of the handicrafts we usually see are not real crystal, but artificial crystal. "Laser" is the most useful tool for the "internal engraving" of the artificial K9 crystal (also known as "crystal glass"). 威廉希尔官方下载ing laser internal engraving technology, the plane or three-dimensional pattern is "carved" in the interior of crystal glass.

These glass and crystal crafts are made by computer-controlled laser engraving machine. The laser machine will inject a certain wavelength of the laser into the glass or crystal, which will cause the specific parts inside to crack slightly and form bubbles, so as to outline the preset shape.

3D Laser engraving principle

The principle of 3D laser engraving is very simple. In order to be able to engrave glass, the energy density of laser must be greater than a certain critical value, or threshold value, which makes the glass damaged. The energy density of laser somewhere is related to the size of its spot at that point. The smaller the spot is, the greater the energy density is. In this way, through proper focusing, the energy density of laser can be lower than the breaking threshold of glass before it enters into the glass and reaches the processing area, and it can exceed this critical value in the desired processing area. The laser generates a pulse in a very short time, and its energy can heat the water crystal to break in an instant, thus producing a small white point, and engraving a predetermined shape inside the glass.


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