As early as the 1970s, lasers were used for cutting for the first time. In modern industrial production, laser cutting is more widely used in sheet metal, plastics, glass, ceramics, semiconductors, textiles, wood and paper and other materials processing. With the continuous maturity of laser cutting technology and the continuous reduction of the cost of laser cutting machines, the application of laser cutting will increase substantially.
The principle of laser cutting
Laser cutting is one of the thermal cutting methods. It uses a focused high-power density laser beam to irradiate the workpiece to quickly melt, vaporize, ablate or reach the ignition point of the irradiated material. At the same time, the molten material is blown away by the high-speed airflow coaxial with the beam. , So as to realize the cutting of the workpiece. Laser cutting can be divided into four categories: laser vaporization cutting, laser melting cutting, laser oxygen cutting and laser scribing and controlled fracture.
Advantages: good cutting quality, narrow incision, good cutting seam, smooth and beautiful cutting surface, and even can be used as the final processing procedure without mechanical processing, small deformation of the workpiece, high cutting accuracy, non-contact cutting, and no tool wear.
Pain points: high cost of oxygen (O2), high cost of nitrogen (N2), high gas consumption during cutting;
The compressed air (Air) is not up to the standard, and there will be water mist on the protective lens during the air-assisted cutting process. Not only the cutting speed is very slow, the cutting quality is also poor, there are burrs, slag, waste products, and even the laser head burns. Damage, frequent replacement or cleaning of the protective lens, resulting in low cutting efficiency.
Application of compressed air in the field of laser cutting
The laser cutting machine can meet the cutting requirements of various materials and complex shapes. In addition to the laser that can provide high energy, the auxiliary gas is an indispensable substance to complete the cutting process. The auxiliary gases used for laser cutting mainly include oxygen (O2), nitrogen (N2) and compressed air (Compressed Air). Compressed air is easier to obtain than oxygen and nitrogen, and the price is very cheap compared with oxygen and nitrogen. It is very common to use compressed air as an auxiliary gas for cutting.
Compressed air mainly acts on the lens of the laser cutting machine head. If it contains oil or water, it will inevitably cause pollution to the lens. Seriously, it will reflect laser light and cause the collimator, focusing lens, and laser head to burn out. Therefore, the quality of the compressed air is also an important factor that affects the quality of the final molded parts of laser cutting.
There are special air compressors for laser cutting in the market (most of which integrate air storage tanks and cold dryers), but the cleanliness and dryness of the compressed air is far below the requirements of the laser cutting process. The oil, water, and dust are seriously exceeding the standard, which has a direct impact on the quality and efficiency of laser cutting. Therefore, it is very important to configure high-efficiency and suitable compressed air drying and purification equipment for laser cutting, which deeply removes harmful substances such as oil, water and dust in the compressed air to ensure that the cleanliness and dryness of the compressed air meet the process requirements of laser cutting and reduce protection The frequency of lens replacement improves the quality of laser cutting and can greatly reduce production costs. The following are mature and stable compressed air drying and purification solutions for laser cutting
Product advantages
Drying effect丨Sustainable and stable below -40℃, with a service life of more than 10 years;
Operating cost 丨 low operating energy consumption, more energy-saving;
Maintenance cost丨Long service life, convenient replacement of consumables, no dust pollution, low maintenance cost.
About Biteman
Founded in 2006, Biteman is the world's leading provider of compressed air drying and purification equipment. With everything for better production as the driving force, it is committed to let dry and clean compressed air drive every production link to achieve high efficiency and safety. After eight generations of product technology upgrades, Biteman products have mature technology, stable and reliable performance, high efficiency and energy saving, and have more than 100 effective patents at home and abroad, covering purifying air dryer , desiccant air dryers, laser cutting dryers, high-efficiency precision filter and Zhaoyu refrigerated air dryer Six series of products. It can also ensure superior performance under extremely complex and harsh working conditions. In our eight major offices and international business divisions, more than 100 excellent partners will continue to provide customers with professional services to help customers improve the quality of compressed air, increase production efficiency, and reduce production energy consumption!
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