阅读说明：本技术 一种工业级大尺寸abs材料fdm成型方法 (Industrial large-size ABS material FDM forming method ) 是由 邱金勇 王誉 于 2020-06-16 设计创作，主要内容包括：本发明公开了一种工业级大尺寸ABS材料FDM成型方法,包括(1)将ABS线材放置于普通鼓风干燥箱进行烘干；(2)将FDM打印系统的成型室和打印平台进行加热；(3)将烘干后的ABS线材放入FDM打印系统的材料箱进一步进行干燥；(4)将FDM打印系统的打印平台进行微孔处理和涂抹高温黏胶；(5)根据底面的二维图形打印第一层图形,沿图形周轮廓垂直方向打印裙边；(6)控制FDM打印系统的喷嘴温度,按照正交铺层工艺进行打印成型,最终得到大尺寸的ABS样件。本发明获得的大尺寸的高强度的ABS打印样件,样件质量好,力学性能好。(The invention discloses an industrial large-size ABS material FDM forming method, which comprises the steps of (1) drying an ABS wire in a common blast drying oven; (2) heating a forming chamber and a printing platform of the FDM printing system; (3) putting the dried ABS wire into a material box of an FDM printing system for further drying; (4) carrying out micropore processing and coating high-temperature viscose on a printing platform of the FDM printing system; (5) printing a first layer of graph according to the two-dimensional graph of the bottom surface, and printing a skirt edge along the vertical direction of the peripheral outline of the graph; (6) and controlling the temperature of a nozzle of the FDM printing system, and printing and forming according to an orthogonal layering process to finally obtain a large-size ABS sample. The large-size high-strength ABS printing sample piece obtained by the invention has good quality and good mechanical property.)

1. An industrial-grade large-size ABS material FDM forming method is characterized by comprising the following steps:

(1) placing the ABS wire in a common blast drying oven for drying;

(2) heating a forming chamber and a printing platform of the FDM printing system;

(3) putting the dried ABS wire into a material box of an FDM printing system for further drying;

(4) carrying out micropore processing and coating high-temperature viscose on a printing platform of the FDM printing system;

(5) printing a first layer of graph according to the two-dimensional graph of the bottom surface, and printing a skirt edge along the vertical direction of the peripheral outline of the graph;

(6) and controlling the temperature of a nozzle of the FDM printing system, and printing and forming according to an orthogonal layering process to finally obtain a large-size ABS sample.

2. The industrial large-size ABS material FDM molding method according to claim 1, wherein the method comprises the following steps: the drying temperature is 60-90 ℃, and the drying time is 4-8 hours.

3. The industrial large-size ABS material FDM molding method according to claim 1, wherein the method comprises the following steps: the heating temperature of the forming chamber is 65-85 ℃, and the heating temperature of the printing platform is 80-100 ℃.

4. The industrial large-size ABS material FDM molding method according to claim 1, wherein the method comprises the following steps: the material box is a sealed material box and is communicated with the forming chamber, the drying temperature is 65-85 ℃, and the drying mode is continuous drying.

5. The industrial large-size ABS material FDM molding method according to claim 1, wherein the method comprises the following steps: the micropore treatment is a PE adhesive tape with micropores, the pore diameter of the PE adhesive tape is 0.1-1.0 mm, and the high-temperature adhesive is paste-shaped high-temperature adhesive.

6. The industrial large-size ABS material FDM molding method according to claim 1, wherein the method comprises the following steps: the skirt edge printed in the vertical direction of the peripheral outline of the graph is overlapped with the peripheral outline of the graph, the overlapping rate is 5-50%, and the width of the skirt edge is 5-20 mm.

7. The industrial large-size ABS material FDM molding method according to claim 1, wherein the method comprises the following steps: the orthogonal paving layer is formed by orthogonally paving layers, the single lines are paved in an overlapping mode, and the overlapping rate is 5-30%.

8. The industrial large-size ABS material FDM molding method according to claim 1, wherein the method comprises the following steps: the FDM printing system is a HAGE 175C printing equipment system.

9. A large-size ABS sample obtained by molding and amplifying according to any one of claims 1 to 8.

Technical Field

The invention relates to the technical field of engineering plastic FDM printing and forming, in particular to an industrial large-size ABS material FDM forming method.

Background

The additive manufacturing technology is also called as 3D printing technology, and is mainly based on computer aided design, material processing and forming technology and digital model, and is formed by stacking special printing materials, such as metal materials, ceramic materials, inorganic materials and the like layer by layer in various modes of extrusion, sintering, melting, solidification, spraying and the like through a programming and numerical control system, so as to manufacture a novel solid manufacturing technology.

FDM is the simplest 3D printing technology in the most popular process, and the working principle of the FDM is to convey hot melt materials (ABS, PLA, wax and the like) processed into threads to a hot melt printing spray head through a wire feeding mechanism, the threads or the thread-shaped plastic materials are heated to a molten state in a spray nozzle, the spray head moves along the shape contour and the track of a part layer under the control of a computer, the molten materials are extruded out, are deposited at a desired position and then are solidified and molded, are bonded with the previously molded layer materials, and are stacked layer by layer to finally form a product model.

ABS is acrylonitrile-butadiene-styrene copolymer, is a thermoplastic high polymer material structure with high strength, good toughness and easy processing and molding, has relative density of about 1.05 and low water absorption; the ABS has good bonding property with other materials, and is easy for surface printing, coating and plating treatment; the thermal deformation temperature is 93-118 ℃, and the temperature of the product can be increased by about 10 ℃ after annealing treatment. ABS still can show a little toughness at-40 ℃, can be used in the temperature range of-40-100 ℃, and is widely applied to the industrial manufacturing fields of electronics, automobiles, consumer goods, artware and the like.

The traditional application and manufacturing process of the ABS material is mainly a material reduction manufacturing process such as injection molding and the like, and has a plurality of difficulties in manufacturing personalized structures such as complex structures, bionic structures and the like. Therefore, the 3D printing molding technique solves just these difficulties well. However, the FDM 3D printing and forming technology can only produce small-sized artware, and when producing large-sized parts, the large-sized parts need to be printed for many times and then spliced, and cannot be integrally formed, so that the mechanical properties of the parts are seriously affected, and the application of large-sized ABS materials in the 3D printing and forming industry is greatly limited.

Disclosure of Invention

The invention aims to provide an industrial large-size ABS material FDM forming method to solve the technical problems in the background technology.

In order to solve the technical problems, the technical scheme of the invention is as follows:

an industrial-grade large-size ABS material FDM forming method comprises the following steps:

(1) placing the ABS wire in a common blast drying oven for drying;

(2) heating a forming chamber and a printing platform of the FDM printing system;

(3) putting the dried ABS wire into a material box of an FDM printing system for further drying;

(4) carrying out micropore processing and coating high-temperature viscose on a printing platform of the FDM printing system;

(5) printing a first layer of graph according to the two-dimensional graph of the bottom surface, and printing a skirt edge along the vertical direction of the peripheral outline of the graph;

(6) and controlling the temperature of a nozzle of the FDM printing system, and printing and forming according to an orthogonal layering process to finally obtain a large-size ABS sample.

Preferably, the drying temperature is 60-90 ℃, and the drying time is 4-8 hours.

Preferably, the heating temperature of the forming chamber is 65-85 ℃, and the heating temperature of the printing platform is 80-100 ℃.

Preferably, the material box is a sealed material box and is communicated with the forming chamber, the drying temperature is 65-85 ℃, and the drying mode is continuous drying.

Preferably, the micropore treatment is a PE adhesive tape with micropores, the pore size of which is 0.1-1.0 mm, and the high-temperature adhesive is a paste-like high-temperature adhesive.

Preferably, the skirt edge printed in the vertical direction of the peripheral outline of the pattern is overlapped with the peripheral outline of the pattern, the overlapping rate is 5-50%, and the width of the skirt edge is 5-20 mm.

Preferably, the orthogonal paving layer is formed by orthogonally paving layers, the single lines are paved in an overlapping mode, and the overlapping rate is 5-30%.

Preferably, the FDM printing system is a HAGE 175C printing apparatus system, and the main printing parameters are: print nozzle diameter: 0.25-1.0 mm; print nozzle temperature: 235-255 ℃; layer thickness: 0.1-0.3 mm; printing speed: 45-90 mm/min.

By adopting the technical scheme, the material drying performance is controlled through the FDM printing system, micropore processing and paste high-temperature viscose are added, the printing platform temperature, the forming temperature and the nozzle temperature are controlled for the printing bottom layer process and the orthogonal printing layer laying process, and the large-size high-strength ABS printing sample piece is obtained, and is good in quality and mechanical property.

Drawings

FIG. 1 is a schematic diagram of the overlap ratio of a skirt printed along the vertical direction of a peripheral outline of a pattern and the peripheral outline of the pattern;

FIG. 2 is a schematic view of a skirt according to the present invention;

FIG. 3 is a schematic view of an orthogonal ply according to the present invention;

fig. 4 is a schematic diagram of the routing between single lines.

Detailed Description

The following description of the embodiments of the present invention will be made with reference to the accompanying drawings 1 to 4. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.