METHOD FOR LASER CLADDING OF NANO CERAMIC COATING ON METAL SURFACE UNDER ASSISTANCE OF ULTRASONIC FIXED-POINT FOCUSING

Title:

METHOD FOR LASER CLADDING OF NANO CERAMIC COATING ON METAL SURFACE UNDER ASSISTANCE OF ULTRASONIC FIXED-POINT FOCUSING

Document Type and Number:

WIPO Patent Application WO/2020/258859

Kind Code:

A1

Abstract:

A method for laser cladding of a nano ceramic coating on a metal surface under the assistance of ultrasonic fixed-point focusing, comprising the following steps: A. treating and fixing a metal matrix (11); B. baking and placing nano ceramic powder; C. fixing and adjusting a laser coaxial powder feeding nozzle (7) and a semicircular ultrasonic transducer (8); D. turning on an argon gas storage tank (9) and performing communication; E. turning on the semicircular ultrasonic transducer (8), a laser (3), and a synchronous powder feeder (6) for laser cladding; and F. after the laser cladding is ended, turning off the devices in sequence and cooling the matrix. The infrared light emitted by the infrared emitter (17) at the lower end of the laser coaxial powder feeding nozzle (7) forms a light spot (13) on the upper end surface of the metal matrix (11), the ultrasonic focus point of the semicircular ultrasonic transducer (8) on the metal matrix (11) is adjusted to coincide with the light spot (13), during the subsequent laser cladding, laser light is emitted from the lower end of the laser coaxial powder feeding nozzle (7) and then coincides with the light spot (13), and the ultrasonic focus point of the semicircular ultrasonic transducer (8) coincides with the light spot (13).

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Inventors:

WANG YULING (CN)
ZHANG JIE (CN)
JIANG FULIN (CN)
AN XIANGLONG (CN)

Application Number:

PCT/CN2020/072128

Publication Date:

December 30, 2020

Filing Date:

January 15, 2020

Export Citation:

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Assignee:

UNIV QINGDAO TECHNOLOGICAL (CN)

International Classes:

C23C24/10

Foreign References:

CN110158082A	2019-08-23
CN106350817A	2017-01-25
RU189306U1	2019-05-21
CN103114286A	2013-05-22
CN106917086A	2017-07-04
JP2005300182A	2005-10-27

Attorney, Agent or Firm:

FUZHOU KEYANG PATENT FIRM (CN)

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