With the rapid development of industry, the important role of sheet metal processing has become increasingly prominent. Laser processing is widely used in sheet metal cutting. Welding and cladding and other fields due to its advantages of good flexibility, high precision, high speed, low thermal impact, ease of programming, and automation.
At present, laser surface modification technology is gradually being widely used as a new industry. China has trillions of yuan worth of equipment in service. Each year, due to the corrosion and wear of its key components, the losses caused by the suspension of production and retirement of the equipment account for 3% to 5% of the national economy's total output value. Laser surface modification technology plays an important role in the surface strengthening and manufacturing of vulnerable and consumable parts in industrial production. After several years of national scientific and technological breakthroughs in China, the technology has been applied in many fields.
In the early 1980s, Rolls Royce of the United Kingdom applied laser cladding technology to hard face cladding the joint of the RB211 turbine engine shell and achieved good results. The domestic commercial application of laser cladding on the surface of the gravure roll as early as the last century has been applied to aerospace, marine, gas turbine and locomotive, energy and other fields. Due to the long wavelength, low absorption, and the large volume of CO2 lasers, the laser surface treatment using this laser consumes more energy.
Laser modification of the surface of the component is equivalent to putting a protective armor on it, which greatly increases the service life of the workpiece. The laser surface modification technology mainly includes laser surface transformation hardening, laser remelting strengthening, laser alloy strengthening, laser cladding strengthening and the like. Laser cladding, also known as laser cladding, is a new surface modification technique that adds a cladding material to the surface of the substrate and uses a high-energy laser beam to fuse it with the surface of the substrate to form a metallurgy with the substrate. Combined cladding layer. Due to the smaller dilution of the deposited layer, the excellent properties of the originally deposited material are ensured. The surface of the substrate will constitute a brand-new composite material after the deposition, which significantly enhances the surface performance of the substrate. According to the service environment of the workpiece, heat resistance, corrosion resistance, and wear resistance can be prepared by selecting different deposition materials. Anti-oxidation or anti-fatigue surface protection of the deposited layer, flexible and convenient, greatly reducing the manufacturing cost of the workpiece. Laser surface modification is applied to surface protection, phase change heat treatment and cladding treatment and repair of shaft rollers, automobile molds, gears, etc. Surface-strengthened parts manufactured using laser cladding technology not only exceed the performance of conventional parts 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 manufacturing and energy conservation and environmental protection, it can be predicted that laser cladding will have a broad market prospect.
At present, laser surface modification technology is gradually being widely used as a new industry. China has trillions of yuan worth of equipment in service. Each year, due to the corrosion and wear of its key components, the losses caused by the suspension of production and retirement of the equipment account for 3% to 5% of the national economy's total output value. Laser surface modification technology plays an important role in the surface strengthening and manufacturing of vulnerable and consumable parts in industrial production. After several years of national scientific and technological breakthroughs in China, the technology has been applied in many fields.
In the early 1980s, Rolls Royce of the United Kingdom applied laser cladding technology to hard face cladding the joint of the RB211 turbine engine shell and achieved good results. The domestic commercial application of laser cladding on the surface of the gravure roll as early as the last century has been applied to aerospace, marine, gas turbine and locomotive, energy and other fields. Due to the long wavelength, low absorption, and the large volume of CO2 lasers, the laser surface treatment using this laser consumes more energy.
Laser modification of the surface of the component is equivalent to putting a protective armor on it, which greatly increases the service life of the workpiece. The laser surface modification technology mainly includes laser surface transformation hardening, laser remelting strengthening, laser alloy strengthening, laser cladding strengthening and the like. Laser cladding, also known as laser cladding, is a new surface modification technique that adds a cladding material to the surface of the substrate and uses a high-energy laser beam to fuse it with the surface of the substrate to form a metallurgy with the substrate. Combined cladding layer. Due to the smaller dilution of the deposited layer, the excellent properties of the originally deposited material are ensured. The surface of the substrate will constitute a brand-new composite material after the deposition, which significantly enhances the surface performance of the substrate. According to the service environment of the workpiece, heat resistance, corrosion resistance, and wear resistance can be prepared by selecting different deposition materials. Anti-oxidation or anti-fatigue surface protection of the deposited layer, flexible and convenient, greatly reducing the manufacturing cost of the workpiece. Laser surface modification is applied to surface protection, phase change heat treatment and cladding treatment and repair of shaft rollers, automobile molds, gears, etc. Surface-strengthened parts manufactured using laser cladding technology not only exceed the performance of conventional parts 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 manufacturing and energy conservation and environmental protection, it can be predicted that laser cladding will have a broad market prospect.
Comments
Post a Comment