With the increasing demand for high-precision machining, related precision machining technologies have also developed rapidly, and laser technology has gained more and more recognition in the market.
Precision processing technology based on thin plate, high processing precision, fast speed, smooth and flat cut, generally no need for subsequent processing; small heat affected zone, small deformation of sheet; high processing precision, good repeatability, no damage to material surface. At present, there are more and more application industries for precision machining, PCB board cutting, microelectronic circuit template precision cutting, glasses industry, jewelry industry.
Laser precision machining has the following remarkable features:
(1) Wide range: Laser precision machining has a wide range of objects, including almost all metal materials and non-metal materials; suitable for sintering, punching, marking, cutting, welding, surface modification and chemical vapor deposition of materials. . Electrolytic processing can only process conductive materials, photochemical processing is only suitable for corrosive materials, and plasma processing is difficult to process certain high melting point materials.
(2) Precise and precise: The laser beam can be focused to a small size, making it particularly suitable for precision machining. The precision of laser precision machining has few influencing factors and high processing precision, which is superior to other traditional processing methods under normal circumstances.
(3) High-speed and fast: From the processing cycle point of view, the tool electrode of EDM has high precision, large loss and long processing cycle; the processing of cavity and profile of electrolytic machining has a large design workload and the manufacturing cycle is also high. It is very long; the photochemical processing process is complicated; the laser precision machining operation is simple, the slit width is convenient to control, and the high-speed engraving and cutting can be performed immediately according to the computer output pattern, the processing speed is fast, and the processing cycle is shorter than other methods.
(4) Safe and reliable: Laser precision machining is non-contact processing, which does not cause mechanical extrusion or mechanical stress on the material; compared with EDM and plasma arc machining, its heat affected zone and deformation are very small, so it can be processed very tiny. Parts.
(5) Low cost: not limited by the number of processing, laser processing is cheaper for small batch processing services. For the processing of large-sized products, the mold manufacturing cost of large-sized products is very high, laser processing does not require any mold manufacturing, and laser processing completely avoids the collapse formed when the material is punched and sheared, which can greatly reduce the production cost of the enterprise. Grade.
(6) The cutting seam is small: the slit of the laser cutting is generally 0.1-0.2 mm.
(7) The cutting surface is smooth: the laser-cut cutting surface has no burrs.
(8) Small thermal deformation: laser-cut laser slits are thin, fast, and concentrated in energy, so the heat transferred to the material to be cut is small, and the deformation of the material is also very small.
(9) Material saving: The laser processing adopts computer programming, which can set the material of different shapes to maximize the utilization rate of materials and greatly reduce the material cost of the enterprise.
(10) It is very suitable for the development of new products: Once the product drawings are formed, laser processing can be performed immediately, and you can get the new products in the shortest time.
In general, laser precision machining technology has many advantages over traditional processing methods, and its application prospects are very broad.
