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In recent years, laser cutting machine technology has developed rapidly in various fields, and laser cutting machines occupy a considerable proportion of metal and non-metal processing. Among them, the most representative applications in the automotive industry include laser welding of car roofs, laser cutting of windshields, laser tailored welding of bottom plates, and laser cutting of three-dimensional contours of body panels. There is no 'tool' wear in laser cutting, and the workpiece is not affected by the cutting force. Compared with the traditional method, the cutting efficiency of laser cutting can be increased by 8-20 times, and it can save 15%-30% of the material.
The production and sales of laser processing machines and industrial lasers in developed countries such as Europe, the United States, and Japan are also increasing year by year, and the fields of application are becoming more and more extensive. More than 40% of the industrial lasers used in the field of laser processing in the world are used for cutting. In contrast, Japan's research on laser processing technology is at the forefront of the world. It has integrated steel plate cutting, welding and die forming in the car door manufacturing process, and has made great progress.
In the laser cutting machine process research, the main focus is on the laser output power, focus position, laser mode, and nozzle shape. As early as the 1970s and 1980s, the United States, Japan, Germany and other countries have established laser cutting process databases based on a large number of cutting process tests. In the early 1990s, some high-performance laser cutting systems were launched abroad.
The laser cutting machine is a technological revolution and the 'processing center' in sheet metal processing; the laser cutting machine has a high degree of flexibility, fast cutting speed, and high production efficiency. The short production cycle has won a wide range of markets for customers. The technology has a long effective life. Most foreign plates with a thickness of more than 2 mm use laser cutting machines. Many foreign experts agree that the next 30-40 years will be the development of laser processing technology. Golden age.
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