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Rotary light beam ultra-high-speed laser cladding method

A technology of laser cladding and rotating beam, which is applied in the coating process and coating of metal materials, can solve the problems of large powder consumption, heavy grinding workload, low utilization rate, etc., and achieve the effect of improving stability

Inactive Publication Date: 2020-03-27
JINAN G WEIKE SCI & TECH
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the current laser cladding technology, the cladding speed is usually less than 1m / min, and the thickness of the cladding layer is between 0.5-2mm. For most wear-resistant and corrosion-resistant requirements, the thickness value is higher than the design index Times, resulting in grinding after cladding, and the grinding workload after cladding is very large, which leads to a large amount of powder, but the utilization rate is low, which is not conducive to the reduction of production costs

Method used

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Embodiment

[0035] refer to Figure 1-5 , a rotating beam ultra-high-speed laser cladding method, comprising the following steps:

[0036] S1: Fix the workpiece on the outside of the device, so that the powder ejected from the laser cladding nozzle is placed above the workpiece to be clad through the feeding pipeline;

[0037] S2: Control the laser beam to irradiate the rotating prism;

[0038] S3: Adjust the rotational speed of the workpiece so that the rotational speed of the workpiece is set within the range of 25-200m / min;

[0039] S4: Start the motor, control the reciprocating movement of the rotating prism, so that the laser beam reflected by the rotating prism irradiates the powder inside the pipeline;

[0040] S5: The powder is heated by uniform laser energy radiation inside the pipe, flows out of the pipe in liquid or semi-solid state and falls into the molten pool, and then cools to form a cladding layer;

[0041] S6: Control the movement of the workpiece to clad the entire w...

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Abstract

The invention discloses a rotary light beam ultra-high-speed laser cladding method, and belongs to the technical field of laser cladding. The rotary light beam ultra-high-speed laser cladding method comprises a workbench. A fixed table is connected with the top of the workbench. A mirror surface is connected with the outer wall of the fixed table through a hinge. A reciprocating movement mechanismis further connected with the outer wall of the fixed table and is connected with the mirror surface. A powder box and a laser head are connected with the top of the workbench. A spraying nozzle is connected with the top of the powder box. The outer wall of the spraying nozzle is connected with a conveying pipe. A concave hole is chiseled in the outer wall of the workbench and internally connected with a conveying belt. A second motor is fixedly connected with the outer wall of the conveying belt. The output end of the second motor is connected with a workpiece body. Large-area even irradiation can be performed on powder, it is ensured that more powder is molten in a limited space and a large melt bath is formed, the powder utilization rate and cladding efficiency are increased, the subsequent grinding machining amount and powder consumption are reduced, and cost is saved.

Description

technical field [0001] The invention relates to the technical field of laser cladding, in particular to a rotating beam ultra-high-speed laser cladding method. Background technique [0002] At this stage, laser cladding technology is mainly used to form a layer of functional coating different from the base material on the metal surface to improve the wear resistance and corrosion resistance of the base material. Many shaft parts, such as hydraulic supports, rolls, Offshore platform columns, etc., have requirements for wear resistance or corrosion resistance on the outer surface or inner surface, which is a major application field in the surface treatment industry. [0003] Existing surface treatment methods mainly include laser cladding, electroplating, and thermal spraying. Among them, laser cladding technology, compared with thermal spraying technology, can produce metallurgical bonding between cladding materials and substrate materials. Compared with electroplating, lase...

Claims

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Application Information

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IPC IPC(8): C23C24/10
CPCC23C24/10
Inventor 蒋习锋岳念举
Owner JINAN G WEIKE SCI & TECH
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