4/10/2008

Laser carving and engraving technology materials

The impact of laser engraving four is the most fundamental elements: carving speed, laser power, carving precision materials. In the specific materials, such as a sculpture must reach a certain effect, requires a certain absorption of laser energy, this energy should be seen as a material absorption of laser energy = laser power / speed carving. Briefly is to improve the absorption of laser energy, it should raise or lower power laser engraving speed, as the final say on which method depends on sculpture materials and the final results. Generally speaking users will avoid the high and low speed, because it would reduce production efficiency. In fact, not only affect the efficiency of sculpture is carved speed, precision carving also have a very significant impact on its. From our experience of the practice of using the same 500 dpi to 600 dpi precision carving articles from the inside glance husband too much difference, the time, about 20 ~ 30% of the access. Under normal circumstances users will use 500 dpi to complete most of the work only in cutting or high-density energy needs will be used at 600 dpi or higher settings, the ultimate effect of the carving from the decisions of the material is still carving. New users of the general characteristics of the material are not very understanding of the different forms of carving materials nor profound understanding, it is bound to be some loss of customers. Below carvings on some commonly used materials and the performance of sculpture as a method, substituting reference: First, the performance of Gray Ordinary mechanical sculpture can not be economical manner carvings of varying thickness, which does not have gray manifestations. Laser engraving is achieved RBI sculpture, a gray-scale performance in a natural advantage. In this sculpture design can be used as far as possible gray manifestations, is the advantage of reducing the coloring process, saving costs on the other hand the rich sculpture reproduction means to increase the level of the graphics. Users in the use of, first, do different graphics Gray filling (first text into graphics), choice of black-and-white engraving output model to test the effect of different outlets, accuracy generally not more than 500 dpi. Second, sculpture materials 1, Timber A log (unprocessed timber) So far only wood is the most commonly used laser processing materials, it is easy carving and cutting. Light-colored wood like birch, cherry or maple can be a good laser gasification, thus more suitable sculpture. Wood, who each have the characteristics of some dense some, such as hardwood, in carving or cutting needs to be used when more laser power. We are not familiar with the proposed wood carvings, sculpture should be the first to study its properties. B, plywood Sometimes, you may be required in the plywood on the sculpture, in fact carved in wood with no big difference, but rather to pay attention to the depth of the engraving too. After cutting-edge of glued wood will be as black as the key to see if the use of plywood that Woody made. C, timber cutting Laser cutting wood carving machine depth does not generally deep within 5 mm, which is smaller because the laser power, such as slowing down economic growth will cause cutting wood combustion. Specific operation to try to use the standard lens, and a repeat cutting method. E, coloring Wood carving will be a general feeling had been burning with a wooden background match the original art with the United States, its main color depth look at the speed of laser power and carvings. Some timber is usually the kind of soft texture , no matter how you can change its color (such as: Birch). Sometimes customers may ask you finished coloring, use acrylic paints. 2, density Tiemianban A general density Tiemianban This is the type of Miduban signs we used to do the kind of wood pallet liner. High Miduban materials, surface affixed with a thin layer of wood. Laser sharp material in this factory on the sculpture, but carving out the design and uneven color black, generally coloring. Under normal circumstances, you can learn appropriate design, the use of the 0.5 mm dual plate mosaic to obtain better results. B, laser special density Tiemianban Some Miduban is designed specifically for laser engraving, carving a uniform color patterns, coloring also have very good results. C, clean After the sculpture can be used wet cloth Miduban clean surface. D, colouring Acrylic paints can be used or Chunsuanqi. In the sculpture, color graphics can be set to 60% gray, some carving bottom Ma, in order to improve the adhesion of color. 3, Acrylic (a faceted glass) A, acrylic Acrylic is second only to the most commonly used wood carving material, it is very easy to cut and sculpture, a wide variety of shapes and sizes, relatively speaking at relatively low cost. There are two plexiglass production process: the casting and rolling, laser engraving main casting production of the plexiglass, as it emerged from the laser engraving of the cream of the effect was very white, transparent texture of the original produced stark contrast to calendar Production of the plexiglass after the laser engraving is still transparent, and there is no adequate contrast. In the purchase of work, you have to dealers stressed the need to the kind of high-purity, or buy back the material at the possibility of carving or cutting will be melting phenomenon. B, sculpture Under normal circumstances a plexiglass back eagles, that is carved from the front, rear view, which makes products more three-dimensional sense. In the back, you should be carving graphics to mirror, and the carving faster speed, lower power. Sculpture, such as high power, the base will rise to the formation of stripes, such as carving a deep hope that some may try several more birds. Thai circumstances in the back of local color should be the first to carve a deeper color more, then use the flame polishing machine polishing, can be colouring. If not polished, from the front to see the color will not be uniform. C, cutting PMMA is relatively easy to cut, such as customer main requirement, cutting the latter can be delivered, and there is no flame polishing. Otherwise, the use of inflatable devices should be cut to improve the quality of incision. Cutting more than 8 mm in the plexiglass, should replace the large format lenses. Note: When cutting plexiglass operators not to leave, may be cutting flame.

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