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Multi-beam coaxial powder feeding type laser cladding nozzle with water cooling protection function

A technology of coaxial powder feeding and laser cladding, applied in metal material coating technology, coating, additive processing, etc., can solve problems such as nozzle burning deformation, working process stability and continuous damage

Active Publication Date: 2017-02-22
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the problem that the nozzle works continuously for a long time during the current powder-feeding laser cladding or laser additive manufacturing, the temperature of the nozzle is very high, and the nozzle is easily burned and deformed, causing damage to the stability and continuity of the working process. To solve the technical problems, a multi-beam coaxial powder-feeding laser cladding nozzle with water cooling protection is provided

Method used

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  • Multi-beam coaxial powder feeding type laser cladding nozzle with water cooling protection function
  • Multi-beam coaxial powder feeding type laser cladding nozzle with water cooling protection function
  • Multi-beam coaxial powder feeding type laser cladding nozzle with water cooling protection function

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specific Embodiment approach 1

[0020] Specific implementation mode one: as Figure 1-9 , this embodiment is a multi-beam coaxial powder-feeding laser cladding nozzle with water cooling protection, which is specifically composed of an inner ring nozzle 7 with a water cooling channel and an outer ring nozzle 1 with a water cooling inlet and outlet;

[0021] The center of the outer ring nozzle 1 with a water-cooling inlet and outlet is a cavity 11 connected with the upper and lower end surfaces, the outer wall of the inner ring nozzle 7 with a water-cooling channel and the cavity of the outer ring nozzle 1 with a water-cooling inlet and outlet The inner wall of the cavity 11 has the same taper and height so that the outer wall of the inner ring nozzle 7 with the water cooling channel is closely connected with the inner wall of the cavity 11 of the outer ring nozzle 1 with the water cooling inlet and outlet;

[0022] The center of the inner ring nozzle 7 with a water-cooling channel is a truncated laser shieldi...

specific Embodiment approach 2

[0025] Embodiment 2: This embodiment differs from Embodiment 1 in that the outer wall of the inner ring nozzle 7 with water-cooling channels and the inner wall of the cavity 11 of the outer ring nozzle 1 with water-cooling inlets and outlets are tightly connected by brazing. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0026] Embodiment 3: This embodiment differs from Embodiment 1 in that the outer wall of the inner ring nozzle 7 with water-cooling channels and the inner wall of the cavity 11 of the outer ring nozzle 1 with water-cooling inlets and outlets are tightly connected by a sealing ring. Others are the same as in the first embodiment.

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Abstract

The invention discloses a multi-beam coaxial powder feeding type laser cladding nozzle with a water cooling protection function, and relates to multi-beam coaxial powder feeding type laser cladding nozzles. The nozzle aims at solving the technical problems that an existing powder feeding type laser cladding nozzle continuously works for a long time, the temperature of the nozzle is very high, and the nozzle is very prone to burning deformation. The nozzle is composed of an inner ring nozzle with a water cooling groove way and an outer ring nozzle with a water cooling inlet and a water cooling outlet; a snake-shaped path water cooling groove is formed in the outer wall of the inner ring nozzle, the water cooling inlet and the water cooling outlet are distributed in the upper end face of the outer ring nozzle body, a water inlet pipeline and a water outlet pipe are communicated with the lower portion of the outer ring nozzle body, the other end of the water inlet pipeline and the other end of the water outlet pipeline are communicated with an inner and outer ring nozzle water cooling connecting pipeline, and the other end of the inner and outer ring nozzle water cooling connecting pipeline is connected with the water cooling groove in the outer wall of the inner ring nozzle body. The multi-beam coaxial powder feeding type laser cladding nozzle has the beneficial effects that the snake-shaped path water cooling groove completely covers the outer wall of the inner ring nozzle body, the cooling water can completely circulate in a groove way, and the optimum cooling effect is met.

Description

technical field [0001] The invention relates to a multi-beam coaxial powder feeding laser cladding nozzle. Background technique [0002] Laser cladding technology is a flexible advanced manufacturing technology, which has developed rapidly in recent years and has been widely used. The basic process of laser cladding technology is: a laser beam with high energy density generates a molten pool on the surface of the substrate, and at the same time, the material is added by feeding powder or wire, and finally a high-quality cladding layer is formed on the surface of the substrate to achieve Modification and repair of the surface of parts. If laser cladding is carried out by accumulating materials layer by layer, it is the laser direct fusion deposition technology in laser additive manufacturing. [0003] Nowadays, powder-feeding laser cladding is widely used, because compared with wire-feeding laser cladding, it has the advantages of high precision, controllable materials, and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C24/10B33Y30/00
CPCB33Y30/00C23C24/10
Inventor 李俐群陶汪黄怡晨申发明
Owner HARBIN INST OF TECH