Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for controlling microstructure and hot crack sensibility of laser cladding coating

A technology of microstructure and laser cladding, which is applied in the direction of coating, metal material coating process, etc., can solve the problems that there is no method to control the cracks of laser cladding coating, and achieve good effect, simple operation and reliable highly operable effect

Active Publication Date: 2016-04-20
SHANGHAI JIAO TONG UNIV
View PDF2 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] However, the prior art does not provide a method that can well control the cracks of the laser cladding coating.

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
  • Method for controlling microstructure and hot crack sensibility of laser cladding coating
  • Method for controlling microstructure and hot crack sensibility of laser cladding coating
  • Method for controlling microstructure and hot crack sensibility of laser cladding coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0038] Such as figure 1 and 2 As shown, a preferred embodiment of the present invention provides a method for controlling the microstructure and thermal crack sensitivity of laser cladding coatings, comprising the following steps:

[0039] Step 1, providing the laser head 1; placing the material 6 for cladding on the surface of the substrate 4;

[0040] Step 2, the laser head emits a high-energy laser beam 2, cladding the material 6 for cladding on the surface of the substrate 4, forming a molten pool 5, and the molten pool 5 solidifies to form a cladding coating 3; wherein, in the cladding process In the process, the laser head 1 is rotated so that the incident angle of the laser light is not perpendicular to the substrate 4, and the incident angle of the laser light is changed.

[0041] Step 3, the change of the incident angle of the laser changes the morphology and temperature field of the molten pool 5, thereby changing the microstructure and growth orientation of the cl...

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

No PUM Login to View More

Abstract

The invention discloses a method for controlling the microstructure and the hot crack sensibility of a laser cladding coating, comprising the following steps: changing the incident angle of laser during laser cladding so as to change the microstructure and the growth orientation of the cladding coating, and further change the hot crack initiation resistance of the cladding coating, and achieve the purpose of controlling forming of the cladding hot cracks. The method for controlling microstructure and hot crack sensibility of laser cladding coating can effectively control the microstructure and the hot crack sensibility of the cladding coating by changing the incident angle of the laser, is simple in operation, strong in operability and good in effect, is suitable for the preparation process of various laser cladding coatings, and is particularly applicable to laser cladding of nickel-base superalloy.

Description

technical field [0001] The invention relates to the field of laser cladding coatings, in particular to a method for controlling the microstructure and thermal crack sensitivity of laser cladding coatings. Background technique [0002] Laser cladding is a new type of additive technology, which uses a laser beam with a certain power density to act on the powder material pre-coated on the metal surface or fed in synchronously, so that the material and the surface of the metal substrate are melted, and the subsequent cooling During the solidification process, a cladding layer with a low dilution rate and good metallurgical bonding is formed on the surface of the metal substrate to achieve the purpose of material surface repair or additive manufacturing. Compared with traditional surface repair technology, laser cladding technology has the following advantages: [0003] (1) The dilution rate of the base material is low, generally below 5%, and the cladding layer and the base mat...

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
Patent Type & Authority Applications(China)
IPC IPC(8): C23C24/10
CPCC23C24/10C23C24/103
Inventor 陈源李铸国姚成武
Owner SHANGHAI JIAO TONG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com