Feed for 3D printing as well as preparation method thereof and application thereof

A 3D printing and feeding technology, which is applied in the field of 3D printing feeding and its preparation, can solve the problems of waste of raw materials, insufficient precision, complex and expensive equipment, etc., and achieve the effects of reducing production costs, improving quality, and shortening the development process

Active Publication Date: 2017-07-28
KUNSHAN KADAM NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the deficiencies in the prior art, the present invention provides a feeding material for 3D printing. The feeding material is linear, thereby avoiding the problems caused by the feeding shape when the existing powder injection molding technology is combined with the 3D printing technology. waste of raw materials, complex and expensive equipment, and insufficient precision

Method used

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  • Feed for 3D printing as well as preparation method thereof and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] A kind of preparation method of feeding material for 3D printing is as follows:

[0050] (1) 60vol% titanium metal powder is mixed with 40vol% polymer binder, and described polymer binder comprises: polyoxymethylene 85wt%, polypropylene 14wt%, stearic acid 1wt%; Add described raw material In an internal mixer, knead at 170°C for 1 hour;

[0051] (2) Utilize extruder to extrude the material obtained after step (1) kneading into a linear material with a diameter of 2 mm, obtain the feed material for 3D printing after cooling, and wind the linear feed material into Disc ready.

[0052] The present embodiment obtains the application of feeding material for 3D printing and comprises the following steps:

[0053] (1) using the linear feed as a raw material, and printing out a green body of a preset shape via a 3D printer;

[0054] (2) degreasing the green body obtained in step (1) at 110° C. using nitric acid as a medium for 4 hours, and removing 10% of the polymer binder ...

Embodiment 2

[0057] A kind of preparation method of feeding material for 3D printing is as follows:

[0058] (1) 50vol% titanium alloy powder is mixed with 50vol% polymer binder, and described polymer binder comprises: paraffin wax 80wt%, polyethylene 19.5wt%, stearic acid 0.5wt%; Described raw material Add to internal mixer, knead at 200°C for 0.5h;

[0059] (2) Utilize extruder to extrude the material obtained after step (1) kneading into a linear material with a diameter of 3 mm, obtain the feed material for 3D printing after cooling, and wind the linear feed material into Disc ready.

[0060] The present embodiment obtains the application of feeding material for 3D printing and comprises the following steps:

[0061] (1) using the linear feed as a raw material, and printing out a green body of a preset shape via a 3D printer;

[0062] (2) Soak the green body obtained in step (1) at 80° C. using n-heptane as a medium for 6 hours, and remove 12% of the polymer binder to obtain a brown...

Embodiment 3

[0066] A kind of preparation method of feeding material for 3D printing is as follows:

[0067] (1) 70vol% copper metal powder is mixed with 30vol% polymer binder, and described polymer binder comprises: paraffin wax 84wt%, polypropylene 14wt%, stearic acid 2wt%; Described raw material is added dense In the mixer, knead at 165°C for 2 hours;

[0068] (2) Utilize extruder to extrude the material obtained after step (1) kneading into a linear material with a diameter of 5mm, obtain the feed material for 3D printing after cooling, and wind the linear feed material into Disc ready.

[0069] The present embodiment obtains the application of feeding material for 3D printing and comprises the following steps:

[0070] (1) using the linear feed as a raw material, and printing out a green body of a preset shape via a 3D printer;

[0071] (2) Soak the green body obtained in step (1) at 60° C. using n-heptane as a medium for 8 hours, and remove 11% of the polymer binder to obtain a br...

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Abstract

The invention relates to feed for 3D printing as well as a preparation method thereof and an application thereof. The feed is metal powder packaged by a high-molecular binder, and is linear. After being printed into raw blank with a preset shape through a 3D printer, the linear feed is sequentially degreased and sintered, so that a metal product with a complex structure and high precision can be obtained. Compared with the prior art, the linear feed is applied to 3D printing, so that waste of raw materials can be avoided; precision of a product surface is controlled and quality of a product is improved by selecting different linear diameters of the feed and controlling a heating temperature; and melting treatment can be performed by a simple thermocouple, and complex and dear laser heating equipment does not need, so that production cost is reduced. A powder injection molding technology and a 3D printing technology are combined, so that the complex product can be quickly printed and manufactured, development flow is shortened, and mass production popularization is realized. The feed has good economic benefits and a wide application prospect.

Description

technical field [0001] The invention relates to the field of metal material body preparation, in particular to a feeding material for 3D printing and its preparation method and application. Background technique [0002] 3D printing technology, also known as three-dimensional printing technology, is a technology based on digital model files, using bondable materials such as powdered metal or plastic, to construct objects by layer-by-layer printing. It can directly generate parts of any shape from computer graphics data without machining or any molds, thereby greatly shortening the product development cycle, improving productivity and reducing production costs. Products such as lampshades, body parts, jewelry, football boots customized to the player's foot, racing car parts, solid-state batteries, and customized mobile phones and violins can all be manufactured using this technology. [0003] 3D printing technology is actually a general term for a series of rapid prototyping ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F1/00B22F3/22B22F3/10B33Y10/00B33Y70/00B22F1/10B22F1/102
CPCB22F3/1021B22F3/227B33Y10/00B22F1/10B33Y70/10B22F1/102B22F10/18Y02P10/25B22F2301/205
Inventor 侯春树周龙金侯文洁
Owner KUNSHAN KADAM NEW MATERIAL TECH CO LTD
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