3D printing method of ceramic titanium alloy composite biological implanting product

A composite material and 3D printing technology, applied in the directions of additive manufacturing, additive processing, process efficiency improvement, etc., can solve the problems that are not involved in research reports, and achieve low production cost, excellent corrosion resistance and wear resistance, and biocompatibility. Good results

Inactive Publication Date: 2016-07-06
GUANGDONG INST OF MATERIALS & PROCESSING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, none of the published patents involves research reports in this area

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Measure TZP ceramic powder with a particle size of 10-20 μm and titanium alloy powder with a particle size of 10-30 μm at 80% and 20% by volume, stir and mix evenly in a mixer, and place them in the 3D printing studio.

[0014] 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.

[0015] 3D printing process parameters: power 400W, scanning speed 600mm / s, spot diameter 60μm, scanning distance 70μm, studio oxygen concentration <50ppm.

[0016] 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.

[0017] Move the printed parts to a heating furnace with Ar gas ...

Embodiment 2

[0019] Measure TZP ceramic powder with a particle size of 10-20 μm and titanium alloy powder with a particle size of 10-30 μm at 65% and 35% by volume, stir and mix evenly in a mixer, and place them in a 3D printing studio.

[0020] 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.

[0021] 3D printing process parameters: power 300W, scanning speed 600mm / s, spot diameter 60μm, scanning distance 70μm, studio oxygen concentration <50ppm.

[0022] 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.

[0023] Move the printed parts to a heating furnace protected by A...

Embodiment 3

[0025] Measure ceramic powder Al by volume percentage 50% and 50% respectively 2 o 3 , with a particle size of 10-20 μm and titanium alloy powder with a particle size of 10-30 μm, stir and mix evenly in a mixer, and place them in the 3D printing studio.

[0026] 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.

[0027] 3D printing process parameters: power 400W, scanning speed 450mm / s, spot diameter 60μm, scanning distance 55μm, studio oxygen concentration <50ppm.

[0028] 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.

[0029] Move the printed parts to ...

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Abstract

A 3D printing method of a ceramic titanium alloy composite biological implanting product is characterized in that ceramic powder ZrO2, Al2O3 or ZrO2/Al2O3 and titanium alloy powder which are evenly mixed according to the proportion are placed in a metal 3D printing work chamber, and printing is carried out under the conditions that power ranges from 200 W to 500 W, the scanning speed ranges from 200 mm/s to 600 mm/s, the spot diameter ranges from 30 micrometers to 60 micrometers, the scanning gap ranges from 40 micrometers to 70 micrometers and the working chamber oxygen concentration is smaller than 50 ppm; and the product obtained through 3D printing is subject to isostatic pressing or solid solution treatment under the Ar gas protection and at the temperature ranging from 950 DEG C to 1050 DEG C, and time ranges from 1.5 h to 4 h. The printed product material is good in biocompatibility with the human body, compact and controllable in texture, adaptive in mechanical property, short in production period and low in manufacturing cost and has the excellent corrosion-resisting wear-resisting performance, and the whole strength of the forming product can be adjusted by changing the proportion of a titanium alloy in a base body material.

Description

technical field [0001] The invention relates to a 3D printing method for bioactive ceramic-titanium alloy composite bio-implant parts, belonging to the technical field of metal selective laser melting (SLM). Background technique [0002] 3D printing is a high-tech developed on the basis of information technology, precision machinery, laser electron beam technology, and material science. It mainly uses the three-dimensional design model created by CAD / CAM to "layer print" and superimpose materials, and finally form a whole. Compared with the traditional processing technology of material removal (or deformation), metal additive manufacturing technology based on material addition has extremely high material utilization rate, can manufacture complex parts and components, and its application has been developed rapidly. [0003] In recent years, 3D printing technology in the medical field has attracted great attention. The main forming methods are: (1) Stereolithography, which is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F3/105B33Y10/00B22F1/00B33Y70/00
CPCB22F1/0003B33Y10/00B33Y70/00B22F10/00B22F10/62B22F10/36B22F10/28Y02P10/25
Inventor 戚文军黄正华黎小辉周楠农登甘春雷
Owner GUANGDONG INST OF MATERIALS & PROCESSING
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