The traditional cutting technologies include flame cutting, plasma cutting, water jet cutting, wire cutting and punch machining. As a new technology in recent years, laser cutting irradiates a laser beam with high energy density on the workpiece to be processed to make it partially heated and melted, and then uses high-pressure gas to blow off the slag to form a cutting seam.
The laser cutting machine has the following advantages:
1. The slit is narrow, with high precision and good roughness, so there is no need to reprocess the next process after cutting.
2. The laser processing system itself is a set of computer system, which can be easily arranged and modified, and is suitable for personalized processing. Especially for some sheet metal parts with complex contour and shape, the batch number is large, the batch number is not large, and the product life cycle is not long. From the perspective of technology, economic cost and time, it is not cost-effective to manufacture molds, and laser cutting is particularly advantageous.
3. Laser processing has large energy density, short action time, small heat affected zone, small thermal deformation, and small thermal stress. In addition, laser processing is non mechanical contact processing, which has no mechanical stress on the workpiece, and is suitable for precision processing.
4. The high energy density of laser is enough to melt any metal, especially suitable for processing some high hardness, high brittleness and high melting point
Materials that are difficult to process by other means.
5. Low processing cost. The one-time investment of equipment is expensive, but the continuous and large amount of processing reduces the processing cost of each part.
6. The laser is non-contact processing, with small inertia and fast processing speed. With the CAD/CAM software programming of the numerical control system, it is time-saving and convenient, and the overall efficiency is very high.
7. The laser has a high degree of automation, can be processed in a totally enclosed manner, and has low noise, greatly improving the working environment of operators.
Fiber laser cutting machine VS early laser cutting
1. The laser is transmitted to the focusing head through optical fiber, and the flexible connection is easy to realize automatic work with the production line.
2. The ideal beam quality of optical fiber greatly improves the cutting quality and working efficiency.
3. The extremely high stability of fiber lasers and the extremely long service life of pump diodes decide that it is unnecessary to adjust the current to adapt to the aging problem of xenon lamps as traditional lamp pumped lasers do, which greatly improves the stability of production and the consistency of products.
4. The photoelectric conversion efficiency of fiber laser is higher than 25%, and the system has small power consumption, small volume and small land occupation.
5. Compact structure, high system integration, few faults, simple and easy to use, no need for optical adjustment, low maintenance or even zero maintenance, really achieve “light on the ground”, coupled with anti shock vibration, anti dust, really suitable for industrial processing applications.
