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High-speed laser cladding method for upright post and upright post

A laser cladding and cladding technology, which is applied in coating, metal material coating process, etc., can solve the problems of processing efficiency improvement bottleneck, large amount of machining removal, low processing precision, etc., and achieve the optimization of cladding deformation problem , Simplify machining procedures and improve processing efficiency

Inactive Publication Date: 2019-11-22
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

However, over the years, it has not been able to replace chrome plating in a real sense. The reason is that processing costs, processing accuracy, processing efficiency and other issues limit its further promotion and application, and the improvement of processing efficiency is the technical bottleneck.
[0003] The processing efficiency of the existing laser cladding technology is low, and the efficiency has become the main factor restricting the popularization and application of this technology, which leads to high processing costs and cannot completely replace electrochrome plating; at the same time, the processing accuracy of the existing technology is low, and it is difficult to process in a small size, precision The surface of the parts is processed by laser cladding, and the existing technology has a large heat input and a large dilution rate, which leads to deformation of the parts, making it difficult to complete the cladding processing such as slender shafts, and it is difficult to realize the surface laser of titanium, aluminum, copper and other materials processing; moreover, most of the existing technologies are large-thickness cladding forming, and the subsequent mechanical processing removes a large amount, resulting in serious waste of materials

Method used

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  • High-speed laser cladding method for upright post and upright post

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A high-speed laser cladding method for a column, the specific steps are as follows:

[0025] S1: Processing and testing before cladding. Machining the column to be processed, checking the original size, and leaving a machining allowance according to technical requirements. The machining allowance is generally the diameter size after cladding minus the diameter size of the final product, and the machining allowance in this embodiment is not less than 0.2 mm.

[0026] S2: Surface pretreatment, degreasing the workpiece to ensure the combination between the post-cladding layer and the substrate. Specifically, use alcohol to wipe and sandpaper to polish the area to be clad to remove rust, oil and dirt.

[0027] S3: High-speed cladding. Place the column to be processed on the lathe, use an elastic thimble to clamp the column, and perform alignment. The laser processing system in this embodiment is coaxial powder feeding. First, set the laser cladding parameters, including...

Embodiment 2

[0035] A high-speed laser cladding method for a column, the specific steps are as follows:

[0036] S1: Processing and testing before cladding. Machining the column to be processed, checking the original size, and leaving a machining allowance according to technical requirements. The machining allowance is generally the diameter size after cladding minus the diameter size of the final product, and the machining allowance in this embodiment is not less than 0.2 mm.

[0037] S2: Surface pretreatment, degreasing the workpiece to ensure the combination between the post-cladding layer and the substrate. Specifically, use alcohol to wipe and sandpaper to polish the area to be clad to remove rust, oil and dirt.

[0038] S3: High-speed cladding. Place the column to be processed on the lathe, use an elastic thimble to clamp the column, and perform alignment. The laser processing system in this embodiment is coaxial powder feeding. First, set the laser cladding parameters, including...

Embodiment 3

[0046] A high-speed laser cladding method for a column, the specific steps are as follows:

[0047] S1: Processing and testing before cladding. Machining the column to be processed, checking the original size, and leaving a machining allowance according to technical requirements. The machining allowance is generally the diameter size after cladding minus the diameter size of the final product, and the machining allowance in this embodiment is not less than 0.2 mm.

[0048] S2: Surface pretreatment, degreasing the workpiece to ensure the combination between the post-cladding layer and the substrate. Specifically, use alcohol to wipe and sandpaper to polish the area to be clad to remove rust, oil and dirt.

[0049] S3: High-speed cladding. Place the column to be processed on the lathe, use an elastic thimble to clamp the column, and perform alignment. The laser processing system in this embodiment is coaxial powder feeding. First, set the laser cladding parameters, including...

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Abstract

The invention belongs to the technical field of laser cladding and particularly relates to a high-speed laser cladding method for an upright post. The method comprises the following steps of carryingout processing and detecting before cladding, performing surface pretreatment, setting machine tool parameters after the pretreatment is finished, starting a machine tool, pneumatically feeding alloypowder to a laser cladding head by nitrogen, and starting laser cladding. The invention further relates to an upright post which is cladded by the high-speed laser cladding method. According to the high-speed laser cladding method for the upright post and the upright post, the high-speed laser cladding method has an extremely high cladding linear speed and is capable of realizing large-area preparation of a coating in a short time; and the thickness of a single-layer cladding layer is extremely thin, so that high-precision forming on the surfaces of parts is realized, the cladding lap joint isflat, the surface roughness is small, the removal amount of subsequent machining is greatly reduced, the material consumption is reduced, and the machining efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of laser cladding, and in particular relates to a high-speed laser cladding method for a column and a column. Background technique [0002] Surface treatment technology has created great practical value since its application, realizing the recycling of remanufactured parts and extending the service life of reinforcement parts. Traditional application processes such as hard chrome electroplating, thermal spraying, surfacing, etc. have their own technical limitations. The emergence of laser cladding has greatly expanded the application field of surface treatment technology and improved processing efficiency and processing quality. However, for many years, it has not been able to replace chrome electroplating in the true sense. The reason is found that problems such as processing cost, processing accuracy and processing efficiency limit its further promotion and application, and the improvement of processing e...

Claims

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Application Information

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IPC IPC(8): C23C24/10C22C38/02C22C38/04C22C38/44C22C38/54
CPCC23C24/103C22C38/02C22C38/04C22C38/54C22C38/44
Inventor 澹台凡亮田洪芳李广浩郎坤张盟王伟杨帆杜学芸
Owner SHANDONG ENERGY HEAVY EQUIP GRP DAZU REMANUFACTURING CO LTD
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