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3D printing method for ceramic-based nickel alloy composite material

A 3D printing, composite material technology, applied in the field of metal selective laser melting, can solve the problem of lack of biological activity, and achieve the effect of high toughness, improved strength, excellent wear resistance and thermal insulation performance

Active Publication Date: 2016-01-20
GUANGDONG INST OF NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although Ti alloys and Ni alloys have good biocompatibility, they are not bioactive
In the prior art, no attempt has been made to use 3D printing technology to prepare composite dental parts based on bioceramics and metal Ni alloys with good biocompatibility.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Measure ZrO at 85% and 15% by volume 2 The ceramic powder and Ni-based alloy powder are stirred and mixed evenly in a mixer, and placed in the 3D printing studio.

[0013] A three-dimensional solid model is established by using a computer, and a layered model with a thickness of 20 μm per layer and a program for scanning paths of each layer are set along the Z direction.

[0014] 3D printing process parameters: power 150W, scanning speed 600mm / s, spot diameter 60μm, scanning distance 70μm, studio oxygen concentration <50ppm.

[0015] Start the printing program, the laser spot completes the printing of the first layered cross-section graphics according to the preset scanning path, the worktable descends 20 μm along the Z axis, and starts the printing of the second layered cross-sectional graphics, the above process is repeated to obtain the workpiece.

[0016] Move the printed parts to the heating furnace, which has N 2 Gas protection, temperature 850°C, annealing trea...

Embodiment 2

[0018] Measure ZrO by volume percentage 70% and 30% respectively 2 The ceramic powder and Ni-based alloy powder are stirred and mixed evenly in a mixer, and placed in the 3D printing studio.

[0019] A three-dimensional solid model is established by using a computer, and a layered model with a thickness of 20 μm per layer and a program for scanning paths of each layer are set along the Z direction.

[0020] 3D printing process parameters: power 100W, scanning speed 600mm / s, spot diameter 60μm, scanning distance 70μm, studio oxygen concentration <50ppm.

[0021] Start the printing program, the laser spot completes the printing of the first layered cross-section graphics according to the preset scanning path, the worktable descends 20 μm along the Z axis, and starts the printing of the second layered cross-sectional graphics, the above process is repeated to obtain the workpiece.

[0022] Move the printed parts to the heating furnace, which has N 2 Gas protection, temperature ...

Embodiment 3

[0024] Measure ZrO by volume percentage 70% and 30% respectively 2 The ceramic powder and Ni-based alloy powder are stirred and mixed evenly in a mixer, and placed in the 3D printing studio.

[0025] A three-dimensional solid model is established by using a computer, and a layered model with a thickness of 20 μm per layer and a program for scanning paths of each layer are set along the Z direction.

[0026] 3D printing process parameters: power 100W, scanning speed 450mm / s, spot diameter 60μm, scanning distance 55μm, studio oxygen concentration <50ppm.

[0027] Start the printing program, the laser spot completes the printing of the first layered cross-section graphics according to the preset scanning path, the worktable descends 20 μm along the Z axis, and starts the printing of the second layered cross-sectional graphics, the above process is repeated to obtain the workpiece.

[0028] Move the printed parts to the heating furnace, which has N 2 Gas protection, temperature ...

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Abstract

A 3D printing method for a ceramic-based nickel alloy composite material is characterized in that ZrO2 ceramic powder and Ni-based alloy powder which are evenly mixed according to a proportion are put into a metal 3D printing work chamber, printing is conducted on the conditions that power is 100-400 W, the scanning speed is 200-600 mm / s, the diameter of light spots is 30-60 micrometers, the scanning interval is 40-70 micrometers and the oxygen concentration of the work chamber is smaller than 50 ppm, and a product obtained through 3D printing is annealed under the protection of N2 gas at the temperature of 800-890 DEG C for 8-12 hours. The biocompatibility of the material of the product obtained through the printing and a human body is good; the structure is compact and controllable; the mechanical property is good, the product has good corrosion and abrasion resistance, and is short in production period and low in manufacturing cost; the whole strength of the formed product can be adjusted by changing the proportion of Ni60 alloy in a base material.

Description

technical field [0001] The invention relates to a 3D printing method of a ceramic-based nickel alloy composite material, which belongs to the technical field of metal selective laser melting. Background technique [0002] 3D printing technology is a solid rapid prototyping manufacturing technology. It adopts the discrete-stacking principle and integrates the advantages of computer graphics processing, digital information and control, optical electromechanical technology and material technology. Accumulate, and finally form a three-dimensional object. Directly manufacturing metal parts and components, even assembled functional metal products, is undoubtedly the most cutting-edge and most potential technology in the 3D printing system. At present, the rapid prototyping methods that can be used to directly manufacture metal functional parts mainly include: Selective Laser Melting (SLM), Electron Beam Selective Melting (EBSM), Laser Engineered Net Shaping (LENS), etc. [000...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/05C22C29/12B33Y10/00
Inventor 戚文军黄正华黎小辉周楠农登甘春雷
Owner GUANGDONG INST OF NEW MATERIALS
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