#Product Trends
Introduction and Working Principle of Laser Subsurface Engraving Machine
Perfect Laser Laser Subsurface Engraving Machine
Laser Subsurface Engraving Machine Introduction:
3D laser engraving machine is widely used on laser crystal engraving and glass, acrylic internal sculpture engraving with various engraving areas: big size 3D laser engraver, medium size 3D engraving machine, small size 3D engraver etc.If adding a 3D camera,it can be used to make 3D portrait.
Perfect Laser is a company which commits in research, production, marketing, training and after-sales service. Crystal laser engraving machine we produced is specially designed for mass 3D laser carving with innovation design in the field of machining. Large-format processing platform, high processing efficiency, 50% lower of carving time and full automatic batch processing procedures make it possible for the equipment to work constantly in the condition of unmanned and the production efficiency is improved.
Main Feature:
1.The engraved image is located inside the product (glass, crystal, and acrylic, etc.) without any damage to the surface of goods and can never be obliterated.
2.The blasting point (imaging point) are delicate, uniform, density, so that the interior image is clear and beautiful.
3.Lasers can achieve high-speed, high-precision engraving by using a high-speed galvanometer (or flying light path).
4.It`s easy and convenient to setting up their own desired images, text, symbols by computer.
5.The image processing technology keeps improving and make lifelike carving products and an unprecedented engraving effect;
6.The first image sculpture “zero width” splicing technology, can make a wide range of joining together without any trace of carving;
7.Humanized system control and operation design, “one-click” sculpture of control to complete all work to avoid the loss of human error;
8.Equipment plug and play, no special installation, convenient and quick to replace site;
9.”Zero width” sculpture of splicing technology makes range up to 320*400*400 mm, meet the demand of personalized customization carving;
10.Inside crystal carving and material surface text’s speed is extremely high;
11.Suitable for any crystal materials carving and the surface of various materials logo engraving;
Applicable industry:
Industrial gifts: crystal and glass crafts, such as trophies, medals, souvenirs (such as factory celebrations, school celebrations, conference commemorative souvenirs), crystal necklaces, pendants, personalized 3D portraits, wedding photos, newborn footprint, personal photos, etc.
Decoration industry: glass decoration and glass deep processing, such as mirrors, glass interior logos, high-end hotels, galleries and exhibition decoration, etc.
Teaching Research: automated laboratories, research rooms and exhibition halls. Laser and automation specialized teaching, student practice.
Industrial applications: anti-counterfeit of high-grade glass products, anti-counterfeiting bar code and industrial markings, and the interior of the bottle to match the factory production line flight identification (security code, production date, etc.).
Crystal laser engraving machine working principles:
Laser engraving machine is adopting advanced laser marking technology to engraving two-dimensional or three-dimensional images and graphics on the glass or transparent goods. This technology does not destroy the surface of the products, the images and graphics will not discoloration, deformation.
The principle of laser engraving is the phenomenon of light interference. The two lasers are injected into transparent objects (such as glass, crystal, etc.) from different angles and accurately converge at one point. Because the two lasers interfere and cancel each other at the point of intersection, their energy is converted from light energy to internal energy, and a large amount of heat is released, melting the point into tiny holes. The machine accurately controls the convergence of the two laser beams at different positions to create a large number of tiny holes. Finally, these holes form the required pattern. This is the principle of laser engraving.
When machine working, do not worry about the injected laser will melt away the material, because the laser to maintain the form of light energy when passing through the transparent object, will not generate excess heat, only at the interference point will be converted to internal energy and melted.
CCD Camera:
Applicable to a wide range of 3D surface data measured by using color structured light measurement principle, can be taken within 0.5 seconds out of 3D surface data. Can be widely used in large-scale measurement of 3D objects and 3D portrait crystal engraving system, human face shooting. The system is more plug-ins with the crystal engraving, Crystal laser can select a variety of shapes and crystal types for simulation and match. Their features:
1. Details and speed of capture: It can handle details such as hair clothes, making the portrait more vivid; you can finish 3D portraits in less than a second;
2. Large shooting range: it can shoot high-precision 3D portraits of 4 people at the same time;
3. Easy to carry: small size, light weight, easy for individuals to carry out;
4. Point cloud generation and preview: It can be judged according to the result of point cloud preview before engraving;
5. Text and logo: company logo, trademark, personalized signature and 3D portrait can be carved into the crystal at the same time;
Easy to operate: The software is fully functional and highly automated. The 3D model can be saved in a variety of common file formats, such as ASC, DXF, CAD, OBJ, etc., compatible with laser engraving machines.
Get the 3d model
To make the 3d crystal, you must have the 3d model first, which we can get them by using the 3d design software, such as 3ds max. This requires that you have the skill of design or 3d model.
Of course you can also download them from the internet, such as http://archive3d.net/ . I realy like this website indeed, because more than 45,000 free and excellent models there.
Which format we should use ?
We will use the “obj”format and it will be better that the 3d object file with texture, the texture file always be “bmp”or “jpg”. You will also find the “mtl” file, which includes the details of the textrue. For example, D:\3d model\04 human\obama you will find there file together.
General the points cloud?
The 3D Crystal program is very easy to use, but it has many powerful features. For more details about how to use the 3D Crystal software, please watch the short training video. We will use it to general the 3d points cloud.To general the “cut back” points cloud, just press F8 or from the Menu – Model – Generate Point Cloud. You can change the brightness, contrast and the gamma to adjust the quality or points number for the model.
The development history of laser engraving machine
1.The first generation of white light engraving machine:
The core of the laser engraving machine is the laser. The original internal engraving machine is a light pump type white light machine. The crystal engraving industry is called "white light machine", which is the 1064nm infrared light that is invisible to the naked eye. This wavelength of light can be used. In the inner carving, but the idea of the large and large thickening of the inner carving is relatively rough, so the resolution of the pattern is not high.
2.The second generation of green light engraving machine:
Based on the shortcomings of the white light machine, it was later discovered that the 1064nm multiplier light 532nm is superior to the white light machine in engraving effect, and the 532nm green light machine is easy to adjust in the visible light range, just one more frequency doubled crystal. Therefore, in a very short period of time, the green light machine replaced the white light machine and entered the crystal engraving processing industry. In addition to the easy adjustment of the main advantages of the green light machine, the internal carving effect is also improved, and the speed is faster than the white light machine.
3.The third generation of semiconductor laser engraving machine:
The third-generation lasers are mainly divided into two categories, electro-optical Q-switched lasers and acousto-optic Q-switched lasers, but both use galvanometers to control the direction of light, and control the doting in a manner similar to light scanning, so the speed is very fast, almost at Working close to the theoretical maximum speed, its working speed can be more than 3000HZ.
3D laser crystal engraving machine is widely used in hotel, tourism, photographic studio, advertising, gallery and other consumption activities industry, urban scenic spots, photo print shops, wedding photo, tourist souvenir and personalized gift shop and other forms of consumption and temporary activity places.
Suitable Materials:crystal, glass, acrylic, decoration materials and other apparent materials.
Perfect Laser is focusing on the laser subsurface engraving machine`s R&D and production, welcome to inquire, our website : https://www.perfectlaser.net/3d-engraver/
