CO2 laser cutting machine uses focus lens to make CO2 laser beam focus on material surface to melt materials, at the same time uses compressed gas which is coaxial with the laser beam to blow melting materials, and laser beam and materials are in relative motion along certain tracks, thus forming cutting slotting in a definite shape. Since 1970s, with the unceasing development and perfection CO2 laser and numerical control technology, CO2 laser cutting machine has become an advanced processing device for plates cutting in industry. In 1950s &1960s the main methods for plates cutting are as follows: cutting medium thickness plate, we adopt oxyacetylene flame cutting method; for thin plate, forming by shearing mass complex components by stamping, sheet by adopting the vibration shears. In the 1970s, to improve the quality of the flame cutting, precision oxyacetylene flame cutting and plasma cutting occur. In order to reduce production cycle of stamping tool, CNC nibbling and ED machining technology have been invented. All cutting methods have their flaws, but still have their applications in specific fields.
Advantages of CO2 laser cutting machine over other cutting devices:
(1) High cutting quality. Narrow incision width (general 0.1 - 0.5 mm), high precision (general distance error of hole centre is 0.1-0.4 mm, size error of outline is 0.1 -- 0.5 mm), good incision surface roughness (general Ra is 125 -- 25 um), cutting slotting can be welded without reprocessing.
(2) High cutting speed. For example, we use laser cutting machine with laser power of 2KW to cut 8mm thick carbon steel, the cutting speed can reach 1.6 m/min; for 2mm thick stainless steel, the cutting speed is about 3.5 m/min, heat affected zone is small, deformation is minimal.
(3) Clean, safe and free from contamination. Greatly improve the operation personnel working environment. Of course in terms of precision and surface roughness, CO2 laser cutting machine is not better than electric processing; but in terms of cutting thickness, it is about the same level of fire and plasma cutting. But just above prominent advantages sufficient proof: CO2 laser cutting has and is instead of traditional cutting process of various methods, especially the cutting nonmetal materials. It is developing rapidly, widely applied more and more advanced processing method.
Since 1990s, due to economy development of socialist market in our country, competitions among enterprises become more and more intense, every enterprise are eager to choose advanced manufacturer to improve the products quality and production efficiency. Therefore, CO2 laser cutting technology developed quickly in China.
The applications of CO2 Laser Cutting Machine in industry
The first CO2 laser cutting machine was invented in 1970s. Due to the enlargement of the applications of CO2 laser cutting machine, at present many international and domestic enterprises are engaged in the production of different kinds of CO2 laser cutting machine to meet the demand of the market, such as two-dimensional flat cutting machine, three-dimensional space curve cutting machine, pipe cutting machine, etc. Famous foreign enterprises are: Trumpf company in Germany, Prima in Italy, Bystronic in Switzerland, Amada in Japan. According to the American Laser Industrial application Laser Industrial authoritative journal "separate" 2000 annual report statistics: in 1999 the world total sales of Laser cutting system (mainly CO2 Laser cutting system), were 11.74 on 3325 sets for $. According to not complete count our current annual production CO2 laser cutting machine nearly 100 computers, a total of 1.5 billion yuan. Although laser cutting the trend of the development of the application level of fast, but the gap between the developed and developing countries. To 2003 in industrial production in our country has already used the CO2 laser cutting system had accumulated around 500 sets of the world is about 1.5% of the total operating system.
Two kinds purchasers of CO2 Laser Cutting Machine
One kind is large and medium-sized manufacturing enterprises, those enterprises need lots of plate cutting, and they have strong economic and technical strength; Another kind is processing station (also called Job Shop abroad), which undertake the further processing of laser. Its existence on the one hand can meet the need of some small and medium-sized enterprise processing; On the one hand in early to promotion application laser cutting technology demonstration role play propaganda. In 1999, American's total of laser machining, which stand 27 home in laser cutting 51%. The 1980s laser processing station in China, mainly engaged in laser heat treatment after 90's, laser cutting and tapping stood gradually to increase. On this basis with China's large and medium-sized enterprise system reform of and economic strength increase, more and more companies will use the CO2 laser cutting technology.
From the current domestic application analysis, CO2 laser cutting widely applied in < 12mm thick low carbon steel, < 6mm thick stainless steel plate and < 20mm thick nonmetal materials. For 3d space curve cutting, in car, aviation industry also began to obtain the application. At present the suits to use CO2 laser cutting products generally can be divided into three categories:
The first type: metal parts, which are hard to manufacture from the technical and economic angle, especially those components with complex shape in small orders, like low-carbon steel with thickness below 12mm , or stainless steel with thickness below 6mm. The typical product has already adopted: automatic elevator structure, lifts panel, machine tools and grain machinery casings, various electrical cabinets, switchgear, textile machinery parts, construction machinery structure, big motor silicon steel, etc.
The second type: stainless steel in decoration, advertising, service industry (general the thickness < 3mm) or non-metallic materials (general the thickness <20mm).
The third type: special components with the requirements of even cutting slotting. The most widely used typical components are die boards in packaging and printing industry, it requires cut slotting with the width of 0.7 ~ 0.8 mm on 20mm thickness wood board, then slot enchase the blade. Use in die cutting machine, fashion cut various has printing good graphic cartons. Domestic in recent years a new field application is oil sieve tube. In order to block sediment into the oil well pump, in wall thickness for 6 ~ 9mm alloy steel tube cut out < 0.3 mm wide uniform cut the perforation seam, up little hole diameter > 0.3 mm, not cutting technology is difficult, there have been many units into production.
0086-769-89833333
ec@ymlaser.com
