Laser cladding method of shaft and tube element

A laser cladding and cladding technology, which is applied in the direction of machine tools designed for grinding the rotating surface of workpieces, grinding/polishing equipment, surface polishing machine tools, etc. Low-level problems, to achieve the effect of simplifying machining procedures, improving cladding efficiency, and improving processing efficiency

Pending Publication Date: 2019-11-22
SHANDONG ENERGY HEAVY EQUIP GRP DAZU REMANUFACTURING CO LTD
View PDF5 Cites 6 Cited by
  • 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

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Laser cladding method of shaft and tube element
  • Laser cladding method of shaft and tube element
  • Laser cladding method of shaft and tube element

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0040] Example one:

[0041] A laser cladding method for a column, the specific steps are as follows:

[0042] S1: Processing and testing before cladding. Perform mechanical processing on the column, check the original specifications and dimensions, and leave a machining allowance according to the technical requirements. The machining allowance is generally the diameter after cladding minus the diameter of the final product, and the machining allowance in this embodiment is not less than 0.2 mm.

[0043] S2: Surface pretreatment, degreasing the column to ensure the bonding between the post-cladding layer and the substrate. Specifically, use alcohol to wipe and sandpaper to polish the area to be cladding to remove rust, oil and dirt.

[0044] S3: Laser cladding. Place the column on the lathe, clamp the column with an elastic thimble, and perform positioning and alignment. The laser processing system of this embodiment is coaxial powder feeding. First, set the laser cladding paramet...

Example Embodiment

[0058] Embodiment two:

[0059] A core rod laser cladding method, the specific steps are as follows:

[0060] S1: Processing and testing before cladding. The cladding part is the overall outer surface of the core rod. The diameter of the core rod in the cladding area is Φ180.3mm, the cladding area is 11m long, and the cladding surface area is 6.3m 2 ; After confirming the state of the mandrel, straighten the workpiece, with a concentricity ≤0.2mm; use a lathe to turn the surface of the mandrel. The turning process includes the rough turning process and the fine turning process. The turning speed of the lathe is set to 100r / min, and the feed The speed is 40mm / min, the lathe speed is 150r / min and the feed rate is 20mm / min when finishing turning, the fatigue layer on the surface of the mandrel is removed by turning, and the surface roughness is ≤Ra6.3; finally, flaw detection is performed on the workpiece to check the surface of the mandrel Whether there are pores or cracks, the next...

Example Embodiment

[0072] Embodiment three:

[0073] A high-speed laser cladding method for boiler tubes, the specific steps are as follows:

[0074] S1: Processing and testing before cladding. Perform mechanical processing on the boiler tube, inspect the original specifications and dimensions, and leave a processing margin according to technical requirements. The machining allowance is generally the diameter after cladding minus the diameter of the final product, and the machining allowance in this embodiment is not less than 0.2 mm.

[0075] S2: Surface pretreatment, degreasing the workpiece to ensure the bonding between the post-cladding layer and the substrate. Specifically, use alcohol to wipe the area to be cladding to remove rust, oil and dirt.

[0076] S3: Laser cladding. First, place the boiler tube to be processed on the lathe, use the displacement tooling to clamp, and perform positioning and alignment; then the robot grabs the laser to move along the axial direction of the boiler tube wit...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Concentricityaaaaaaaaaa
Thicknessaaaaaaaaaa
Pore diameteraaaaaaaaaa
Login to view more

Abstract

The invention discloses a laser cladding method of a shaft and tube element. The shaft and tube element comprises but is not limited to a column, a core rod and a boiler tube. The laser cladding method comprises the following steps: 1, carrying out machining or detecting before cladding; and 2, carrying out laser cladding. According to the laser cladding method, cladding linear velocity is higher,a cladding layer can be rapidly prepared within a short time, and the cladding efficiency is remarkably improved; and meanwhile, the heat effect is small, high-precision forming on the surface of a workpiece can be obtained, subsequent machining removal amount is reduced, machining programs are simplified, material consumption is reduced, and the machining efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of laser cladding, in particular to a laser cladding method for shafts and pipes. Background technique [0002] The surface treatment technology has created great practical value since its application, realizing the recycling of remanufacturable parts and prolonging the service life of reinforcement parts. Traditional application processes such as hard chrome plating, thermal spraying, surfacing, etc., have their own technical limitations. The emergence of laser cladding has greatly expanded the application field of surface treatment technology, improved processing efficiency and processing quality. However, over the years, it has not been able to replace electrochrome 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. ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C23C24/10C22C38/54C22C38/44C22C38/04C22C38/02C22C38/52C22C19/05B24B5/04B24B29/04
CPCB24B5/04B24B29/04C22C19/056C22C38/002C22C38/02C22C38/04C22C38/44C22C38/52C22C38/54C23C24/103
Inventor 澹台凡亮田洪芳杜学芸郎坤李光浩杨帆王伟侯庆玲翟勋富张岩
Owner SHANDONG ENERGY HEAVY EQUIP GRP DAZU REMANUFACTURING CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap