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Laser head, laser including the laser head and use method

A laser head and laser technology, applied in the field of lasers, can solve the problems affecting the service life of the laser head, high heat, restricting the development prospect of laser cladding technology, etc., and achieve the effects of improving operability, high safety factor, and strong practicability

Active Publication Date: 2018-11-23
SHANDONG ENERGY HEAVY EQUIP GRP DAZU REMANUFACTURING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, lasers are mainly used in the repair process of the outer surface of workpieces. Due to the small size of semiconductor lasers and fiber lasers, they can be applied to the cladding process of the inner wall / hole of large-diameter hollow components with a diameter of more than 1 meter. Existing lasers cannot It is used in hollow components with a diameter of less than 1 meter, which seriously restricts the development prospect of laser cladding technology; in addition, due to the high energy density of the laser, the heat emitted by it is large, which affects the service life of the components of the laser head

Method used

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  • Laser head, laser including the laser head and use method
  • Laser head, laser including the laser head and use method
  • Laser head, laser including the laser head and use method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Such as figure 1 As shown, a laser head includes a transition tube 1, a light guide part 2 and a light outlet 8. One end of the light guide part 2 is provided with a transition tube 1, and the other end is provided with a light outlet 8. The light outlet 8 A powder feeding device 7 and a shielding gas device 6 are provided at the place, the powder feeding device 7 includes a powder feeding head and a fixed part, a cooling part 10 is arranged inside the powder feeding head, and the powder feeding head can slide along the fixing part , it is convenient to adjust the powder feeding angle. The protective gas device 6 includes an air curtain part and a light shielding part in turn from top to bottom. A cooling part 10 is arranged inside the light shielding part, and the light shielding part can effectively prevent the cladding process The slag generated in the process is splashed into the laser head to avoid damage to various components.

[0043] The transition cylinder 1 a...

Embodiment 2

[0049] Such as figure 2 , image 3 As shown, the reflector group 3 includes a mirror base 32 and a reflector 31, the reflector 31 is arranged in the mirror base 32, and the angle between the reflector 31 and the horizontal plane is 44-46°, the reflector A reflector cover 33 is provided on the back of the mirror 31, and a molybdenum film is provided on the reflective surface of the reflector 31 to effectively prevent the laser from dissipating heat.

[0050] Such as Figure 3-6 As shown, the inside of the mirror base 32 and the reflector 31 are provided with an adjustment hole 15, the inside of the reflector cover 33 and the reflector 31 are provided with an adjustment hole 16, and the inside of the adjustment hole 15 is provided with an internal thread , the reflector group 3 also includes an adjustment member, the surface of the adjustment member is provided with an external thread matching the internal thread, the adjustment member includes an adjustment member 12, an adj...

Embodiment 3

[0059] Such as figure 1 , Figure 7 , Figure 8 As shown, an adjustment device 5 is provided at the joint between the light guide part 2 and the reflector group 3, and the adjustment device 5 includes a matching scroll 51 and a turbine 52, and the turbine 52 is connected with the light guide part 2, A worm rod 51 is arranged above the turbine 52, and the turbine 52 is driven to rotate by twisting the worm rod 51, and then drives the light guide part 2 and the integrator mirror group 4 to realize a 360° rotation, and adjusts the exit angle of the laser light. Improve the operability of cladding inside hollow components, with high flexibility and strong practicability.

[0060] Such as figure 2 As shown, the junction of the integrator mirror group 4 and the light guide part 2 is provided with a heat insulation part 18, which effectively prevents the heat generated during the laser cladding process from being transferred to the light guide part 2 and the reflector group 3, fu...

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Abstract

The invention relates to a laser head, a laser comprising the laser head and an application method thereof, and belongs to the technical field of laser equipment. The laser head comprises a transition cylinder, a light guiding part and a light outlet. One end of the light guiding part is provided with the transition cylinder, and the other end of the light guiding part is provided with the light outlet. The transition cylinder and the light guiding part are of a vertical structure, and the juncture part of the transition cylinder and the light guiding part is provided with a reflector group. The light outlet is provided with an integrator group. According to the technical scheme of the invention, the application range of the laser cladding technique is effectively expanded. Meanwhile, all parts are long in service life. At the same time, the laser head is high in flexibility, high in practicability and high in safety coefficient is high. The internal cladding operability of hollow members is improved.

Description

technical field [0001] The invention belongs to the technical field of laser equipment, and in particular relates to a laser head, a laser including the laser head and a use method. Background technique [0002] Laser cladding technology is a new surface modification technology. By adding cladding materials on the surface of the substrate and using a high-energy-density laser beam to melt it together with the thin layer on the surface of the substrate, the surface of the base layer is formed on the surface of the substrate. It is a metallurgically bonded cladding layer, which can significantly improve the wear resistance, corrosion resistance, heat resistance, oxidation resistance and electrical properties of the base surface. [0003] Compared with surfacing, spraying, electroplating and vapor deposition, laser cladding has the characteristics of small dilution, dense structure, good combination of coating and substrate, many materials suitable for cladding, and large chang...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01S3/10H01S3/04H01S5/06H01S5/024
Inventor 周峰杨庆东肖拥军澹台凡亮杨帆宋其伟刘虎侯庆玲陶常胜
Owner SHANDONG ENERGY HEAVY EQUIP GRP DAZU REMANUFACTURING CO LTD
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