What is the status quo of laser surface treatment

With the rapid development of industry, the important role of sheet metal processing has gradually become prominent. Laser processing has been widely used in cutting, welding, and welding due to its flexibility, high precision, high speed, low thermal impact, easy programming and automation. Heat treatment field. On this basis, the Sheet Metal Equipment Division has honed its research and development, intensively cultivated the market, and has achieved remarkable results. For the development of an enterprise, we need to further explore the market and find new growth points while consolidating and improving the existing achievements. At present, laser surface modification treatment technology is gradually being widely used and rapidly growing into a brand-new industry. There are trillions of yuan of equipment in service in my country, and the loss of equipment shutdown and scrap due to corrosion and wear of its key components every year accounts for 3% to 5% of the total national economic output value. Laser surface modification technology has played an important role in the surface strengthening and manufacturing of fragile and consumable parts in industrial production. After several five-year national scientific and technological research plans, this technology has been applied in many fields.

Laser modification of the surface of the parts is equivalent to putting on a layer of protective armor, which greatly improves the service life of the workpiece. Laser surface modification technology mainly includes laser surface transformation hardening, laser remelting strengthening, laser alloy strengthening, laser cladding strengthening and so on. Laser cladding, also known as laser cladding, is a new surface modification technology. It uses high-energy laser beams to fuse and fuse the surface of the substrate by adding fused materials on the surface of the substrate to form a metallurgy with the substrate. Combined cladding layer. Due to the small dilution of the deposited layer, the excellent performance of the original deposited material is guaranteed. The surface of the substrate will form a new composite material after cladding, which significantly enhances the surface performance of the substrate. According to the service environment of the workpiece, by selecting different cladding materials, it can be prepared for heat resistance, corrosion resistance, wear resistance, Anti-oxidation or anti-fatigue surface protection deposited layer is flexible and convenient, which greatly reduces the manufacturing cost of the workpiece. Laser surface modification is applied to the surface protection, phase change heat treatment and cladding treatment and repair of axle rollers, automobile molds, gears and other components. The parts manufactured by using laser cladding technology surface strengthening not only exceed the performance of parts manufactured by traditional processes At the same time, due to the advantages of materials and processing, the production cost is reduced by 20% to 40%, and the production cycle is also shortened by about 80%. In today's environment of advocating green remanufacturing and energy saving and environmental protection, it is foreseeable that laser cladding will have broad market prospects.

Laser cladding is one of the surface modification technologies with the greatest potential for modern industrial applications and has significant economic value. As early as the early 1980s, the British RollsRoyce company used laser welding technology to perform hard surface welding on the joint part of the RB211 turbine engine housing, and achieved good results. As early as the last century, the commercial application of laser cladding on the surface of gravure rollers has been realized in China, and the cladding technology has been applied to the fields of ships, gas turbines and locomotives. Due to the long wavelength, low absorptivity, and large volume of CO2 lasers, laser surface treatment using this laser consumes a lot of energy. At present, the business unit uses optical fiber and direct semiconductor lasers. Due to its short wavelength and high absorption rate, the volume is also reduced a lot, making the surface modification treatment more practical. The Sheet Metal Equipment Division recently received a cladding order from a company in Shanxi. Han's owns laser manufacturing technology that is unmatched by other domestic laser companies. Advanced laser equipment provides a broad platform for the research and development of laser processing technology. We should make full use of our own software and hardware advantages to quickly occupy the commanding heights of the laser surface modification market. With the help of laser surface treatment, the business unit jumped to a new level.