Laser-induced formed mother-of-pearl layered steel bond hard alloy and preparation method thereof

A steel-bonded hard alloy, laser-induced technology, applied in laser welding equipment, metal processing equipment, coatings, etc., can solve problems such as laser cladding steel-bonded hard alloy application problems, achieve significant energy dissipation effect, Controlling the Effects of Extensions

Pending Publication Date: 2022-04-15
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Laser cladding technology is an important method to prepare steel-bonded hard alloy material layer. However, steel-bonded hard alloy has a great tendency to crack during laser cladding preparation, which limits the application of laser cladding steel-bonded hard alloy posed a great problem

Method used

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  • Laser-induced formed mother-of-pearl layered steel bond hard alloy and preparation method thereof
  • Laser-induced formed mother-of-pearl layered steel bond hard alloy and preparation method thereof
  • Laser-induced formed mother-of-pearl layered steel bond hard alloy and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0025] Laser-induced forming method of imitating mother-of-pearl layered steel-bonded cemented carbide:

[0026] (1) The layered steel-bonded cemented carbide structure is composed of TiC hard ceramic material layers and 316L soft material layers alternately, forming a "mud brick" structure similar to natural mother-of-pearl;

[0027] (2) Using ultra-high-speed laser cladding technology to prepare each layer of TiC hard ceramic material layer and 316L soft material layer of layered steel-bonded cemented carbide, the laser power is 3000W and 1800W respectively, and the scanning speed is 12m / min , after the preparation of each layer of material, the picosecond laser processing technology is used to prepare the grid structure in the "mud brick" structure. The laser parameters are: power 35W, spot diameter 30 microns. Through continuous accumulation and forming, a steel-bonded cemented carbide with a layered structure imitating mother of pearl is formed;

[0028] (3) The single-l...

Embodiment 2

[0032] Laser-induced forming method of imitating mother-of-pearl layered steel-bonded cemented carbide:

[0033] (1) The layered steel-bonded cemented carbide structure is composed of TiC hard ceramic material layers and 304 stainless steel soft material layers alternately, forming a "mud brick" structure similar to natural mother-of-pearl;

[0034] (2) Using ultra-high-speed laser cladding technology to prepare each layer of TiC hard ceramic material layer and 304 stainless steel soft material layer of layered steel-bonded cemented carbide, the laser power is 2800W and 1600W respectively, and the scanning speed is 10m / min, after the preparation of each layer of material, the picosecond laser processing technology was used to prepare the grid structure in the "mud brick" structure. The laser parameters were: power 30W, spot diameter 30 microns. Through continuous accumulation and forming, a steel-bonded cemented carbide imitating mother-of-pearl layered structure is formed; ...

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Abstract

The preparation method mainly comprises the following steps: preparing each hard ceramic material layer and each soft material layer of the layered steel bond hard alloy by utilizing an ultra-high-speed laser cladding technology, and after each layer of material is prepared, preparing the hard ceramic material layer and the soft material layer of the layered steel bond hard alloy by utilizing an ultra-high-speed laser cladding technology; a grid structure in a'mud brick '-shaped structure is prepared by using an ultrafast laser processing technology, and finally, the steel bond hard alloy with the imitated mother-of-pearl layered structure is formed through continuous stacking forming. The obtained layered steel bond hard alloy structure is of a mud brick-shaped structure which is formed by alternately arranging hard ceramic material layers and soft material layers and is similar to nacre in the nature. According to the method, the technical characteristics of an ultra-high-speed laser cladding technology and an ultra-fast laser technology can be effectively coupled, a'mud brick '-shaped steel bond hard alloy structure similar to a mother-of-pearl is prepared, a good strengthening effect is achieved, and the problems of cracking and the like caused by a conventional laser steel bond hard alloy layer in the laser cladding preparation process are effectively controlled.

Description

technical field [0001] The invention belongs to the field of mechanical manufacturing, and in particular relates to a mother-of-pearl-like layered steel-bonded hard alloy formed by laser induction and a preparation method thereof. Background technique [0002] Steel-bonded cemented carbide is a composite material with steel as the binder phase and hard ceramic particles such as TiC and WC and their composite phase as the strengthening phase. It has the comprehensive excellent properties of steel and cemented carbide and is widely used in the preparation of The surface material layer of the abrasive part. [0003] Laser cladding technology is an important method to prepare steel-bonded hard alloy material layer. However, steel-bonded hard alloy has a great tendency to crack during laser cladding preparation, which limits the application of laser cladding steel-bonded hard alloy posed great difficulties. Contents of the invention [0004] In order to overcome the cracking ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C24/10B23K26/342B23K26/362
Inventor 李永健任旭东顾嘉阳周王凡杨宇陈兰
Owner JIANGSU UNIV
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