With the rapid development of photonics technology, laser engraving technology range more widely, Increasingly demanding high precision carving.
The most fundamental element of effecting laser engraving: engraving speed, laser power, engraving precision and materials. On the specific materials to achieve a certain effect engraving, requires absorb some energy laser, this energy should be seen as a material to absorb the laser energy = laser power / engraving speed.
Briefly that if improve the material absorbs laser energy, it should improve the laser power or reduce engraving speed, As for choose which method depends on the material and the final engraving effect. In general, users will avoid the high and low speed, because it would reduce production efficiency. In fact, not only the speed affect the efficiency , but also the carving precision have a very big impact.
Laser engraving process is the use of numerical control technology, laser-processing medium. Processing materials melting and vaporization of instant physical degeneration in the laser irradiation, to achieve the purpose of processing.
Laser processing characteristics: no contact with the material surface, without mechanical movement affected ,surface will not be deformed, generally without fixed, not affected by the material flexibility and elasticity, convenient for soft materials. High precision, high speed, wide range of applications
Laser engraving into laser cutting, laser engraving, laser marking..
Laser engraving is widely used in advertising processing, gift processing, packaging engraving, leather processing, fabric proofing, seal carving, product marking, seal carving and many other industries.
Common laser engraving material:
1, non-metallic materials processing (co2 laser): plexiglass, wood, leather, cloth, plastic, printing rubber , color plates, glass, synthetic crystal, horn, cardboard, MDF, marble, jade and so on;
2, metal processing (YAG laser) common metallic materials.
Laser engraving principle
Laser engraving and cutting, the process is very simple, as the use of computers and printers to print on paper. You can use in the Win98 / Win2000 / WinXP environment ,use a variety of graphics processing software, such as CorelDraw and other design, scanned graphics, vector graphics and a variety of CAD files can easily “print” to the engraving machine. The only difference is, print the toner applied to the paper, Laser engraving is the laser hitting the materials
Lattice engraving
Lattice engraving resembles high-resolution dot matrix printing. Laser head from side to side, each carving out a series of points of a line, then the laser head moves up and down while carving out a number of lines, and finally constitute a full-page image or text. Graphics, text and vector graphics can be used to scan a lattice engraving.
Vector Cutting
With different lattice carving ,vector graphic cut in the outer contour line. We usually use this mode on wood, acrylic, paper and other materials for penetrating cutting,Also can operate in a variety of marking material surface.
Laser Engraving speed:
Engraving speed refers to the speed of the laser head movement, usually represented by IPS (inches / sec) High speed means high productivity. Speed is also used to control the cutting depth, For a specific laser intensity, the slower the speed, the depth of cutting or carving the greater. You can use the machine panel to adjust the speed , also can use the computer printer driver to adjust. In the range of 1% to 100%, the adjustment is 1%
Spot size
Laser beam spot size can be adjust byehe lens of different focal lengths . Small spot lens for high-resolution engraving. big spot lens for a lower resolution carving, but for vector cutting, it is the best option. Standard configuration of the new device is 2.0-inch lens. Its spot size in the middle, for a variety of occasions.
Advantage of the laser processing
1, Wide range: a co2 laser machine can working with almost any non-metallic materials. And low prices!
2, Safe and reliable: use of non-contact processing, the material does not cause mechanical compression or mechanical stress. No “marks” and does not harm the surface of the workpiece; do not deform the material;
3, Meticulous precision: machining precision can reach 0.02mm;
4, Environmental conservation: Beam and the spot diameter is small,generally less than 0.5mm; cutting to save material, safety and health;
5, Consistent results: Ensure that the same batch of processed exactly the same effect.
6, High-speed fast: can immediately speed engraving and cutting according to pattern that computer output.
7, Low cost: not limited by the number of processing, and cheaper for small batch processing services.
