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Selective laser melting and forming method for TC4 titanium alloy hollowed-out artificial bone

A selective laser melting, titanium alloy technology, applied in the direction of additive manufacturing, process efficiency improvement, prosthesis, etc., can solve the problem of long time cycle in mold design and manufacturing, inability to realize, and difficult to realize the personalization and customization of bioartificial bone and other problems, to achieve the effect of improving biocompatibility, reducing weight, and uniform internal organization

Inactive Publication Date: 2016-03-16
XIAN BRIGHT ADDTIVE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the time period for mold design and manufacturing is very long, and this method is difficult to realize the personalization and customization of bioartificial bones; at the same time, because artificial bones are implanted in the human body, some hollow grid structures are required to achieve complete integration with the human body , these structures cannot be realized by traditional processing methods

Method used

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  • Selective laser melting and forming method for TC4 titanium alloy hollowed-out artificial bone
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  • Selective laser melting and forming method for TC4 titanium alloy hollowed-out artificial bone

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Effect test

Embodiment 1

[0050] according to figure 1 As shown in the steps, the selective laser melting method of the TC4 titanium alloy artificial femur specifically includes the following steps:

[0051] (1) Design the CAD model of the TC4 titanium alloy artificial femur through the existing 3D modeling software; or use the traditional reverse method to obtain the 3D model of the TC4 titanium alloy artificial femur;

[0052] (2) Use commercial 3D design software to design the hollow structure of the 3D model of the artificial femur, select a suitable area to add the hollow grid structure, and increase the compatibility of the artificial femur with the human body;

[0053] (3) The artificial femur 3D model with a hollow structure is layered and discretized using commercial subdivision software, and the 3D model of the artificial femur is converted into a 2D slice model to obtain layer-by-layer cross-sectional contour data, and corresponding contour data are generated according to the contour data p...

Embodiment 2

[0063] according to figure 1 The steps shown, the selective laser melting method of the TC4 titanium alloy artificial pelvis, specifically includes the following steps:

[0064] (1) Design the CAD model of the TC4 titanium alloy artificial pelvis through the existing 3D modeling software; or use the traditional reverse method to obtain the 3D model of the TC4 titanium alloy artificial pelvis;

[0065] (2) Use commercial 3D design software to design the hollow structure of the 3D model of the artificial pelvis, select a suitable area to add the hollow grid structure, and increase the compatibility between the artificial pelvis and the human body;

[0066] (3) Use commercial subdivision software to carry out hierarchical discretization of the 3D model of the artificial pelvis, convert the 3D model of the artificial pelvis into a 2D slice model, obtain layer-by-layer cross-sectional contour data, and generate corresponding processing programs based on the contour data ;

[0067...

Embodiment 3

[0076] according to figure 1 The steps shown, the selective laser melting method of the TC4 titanium alloy artificial clavicle, specifically include the following steps:

[0077] (1) Design the CAD model of the TC4 titanium alloy artificial clavicle through the existing 3D modeling software; or use the traditional reverse method to obtain the 3D model of the TC4 titanium alloy artificial clavicle;

[0078] (2) Use commercial 3D design software to design the hollow structure of the 3D model of the artificial clavicle, select a suitable area to add the hollow grid structure, and increase the compatibility of the artificial clavicle with the human body;

[0079] (3) Use commercial subdivision software to carry out hierarchical discretization of the three-dimensional model of the artificial clavicle, convert the three-dimensional model of the artificial clavicle into a two-dimensional slice model, obtain layer-by-layer cross-sectional contour data, and generate corresponding proce...

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Abstract

The invention discloses a selective laser melting and forming method for a TC4 titanium alloy hollowed-out artificial bone. The method comprises the steps that 1, a three-dimensional model of an artificial bone is obtained through three-dimensional modeling or reverse engineering; 2, the structures such as grids, grids with a thin-gauge skin and grids with a complex curved-surface thin-gauge skin in the hollowed-out zone of the artificial bone are designed; and 3, by using the selective laser melting and forming method, the TC4 titanium alloy artificial bone prepared according to technological parameters is selected. The obtained TC4 titanium alloy artificial bone is high in surface precision and dimensional precision and excellent in mechanical property; moreover, due to the hollowed-out grid structural design in the bone, the artificial bone prepared through the selective laser melting and forming method is light in weight and good in biocompatibility, and using for patients is more convenient.

Description

technical field [0001] The invention belongs to the technical field of TC4 titanium alloy artificial bone manufacture, and in particular relates to a selective laser melting forming method of TC4 titanium alloy hollow artificial bone. Background technique [0002] Artificial bone is a new type of material with biological functions. It can form new bone by supplementing certain ions from human body fluids, and undergo reactions such as decomposition, absorption, and precipitation at the bone bonding interface to achieve a firm bond of bones. TC4 titanium alloy has the characteristics of good corrosion resistance, good elasticity, high strength and high stability. It also has excellent biocompatibility. It will not change its essence after long-term contact with people, and will not cause human allergic reactions. New bones can be attached to TC4 titanium alloy, which can be closely combined with human bones. It is also the only metal that has no effect on human autonomic nerv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F3/105A61L27/06
CPCA61L27/06B22F10/00B22F10/32B22F12/67B22F10/28B22F10/36B22F12/41Y02P10/25
Inventor 赵晓明薛蕾胡桥王俊伟
Owner XIAN BRIGHT ADDTIVE TECH CO LTD
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