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3D printing system and method for continuous fiber reinforced thermosetting resin composite material

A resin composite material and continuous fiber technology, applied in the field of 3D printing systems, can solve the problems of lack of mature 3D printing equipment, many researches, and few researches on 3D printing technology, and achieve the goal of improving curing degree and mechanical properties, and improving molding efficiency Effect

Inactive Publication Date: 2021-12-14
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the 3D printing technology of resin materials, ceramic materials, metal materials and continuous fiber-reinforced thermoplastic resin composites is relatively mature, and there are many studies; while the 3D printing technology of continuous fiber-reinforced thermosetting resin-based composites is rarely studied, and there is no Mature 3D printing equipment suitable for continuous fiber reinforced thermosetting resin matrix composites

Method used

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  • 3D printing system and method for continuous fiber reinforced thermosetting resin composite material
  • 3D printing system and method for continuous fiber reinforced thermosetting resin composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment 1, a 3D printing method of a continuous fiber reinforced thermosetting resin composite material, comprising the following steps:

[0026] Step 1: Pass the continuous carbon fiber with a tow diameter of 1K through the impregnation tank 1 of the thermosetting phenolic resin, the nozzle 2 of the impregnation tank, the active fiber feeding device 3 and the printing head 4;

[0027] Step 2: Set the temperature of the dipping tank 1 to 30°C, and fix the beginning of the prepreg on the printing platform 5;

[0028] Step 3: Start printing, the print head 4 starts to move according to the movement track of the model, and the printing parameters are set as follows: the diameter of the dipping tank nozzle 2 is 0.35mm, the printing speed is 100mm / min, the printing spacing is 0.8mm, and the printing layer thickness is 0.1mm ;

[0029] Step 4: Use the heat gun 6 to directly heat and cure the prepreg deposited on the printing platform 5 through the printing head 4, and set...

Embodiment 2

[0031] Embodiment 2, a 3D printing method of a continuous fiber reinforced thermosetting resin composite material, comprising the following steps:

[0032] Step 1: Pass the continuous carbon fiber with a tow diameter of 3K through the impregnation tank 1 of thermosetting epoxy resin E-51, the nozzle 2 of the impregnation tank, the active fiber feeding device 3 and the printing head 4;

[0033] Step 2: Set the temperature of the dipping tank 1 to 50°C, and fix the beginning of the prepreg on the printing platform 5;

[0034] Step 3: Start printing, the print head 4 starts to move according to the movement track of the model, and the printing parameters are set as follows: the diameter of the nozzle 2 of the dipping tank is 0.7mm, the printing speed is 150mm / min, the printing distance is 1.2mm, and the printing layer thickness is 0.4mm ;

[0035] Step 4: Use the heat gun 6 to directly heat and cure the prepreg deposited on the printing platform 5 via the printing head 4, and se...

Embodiment 3

[0037] Embodiment 3, a 3D printing method of a continuous fiber reinforced thermosetting resin composite material, comprising the following steps:

[0038] Step 1: Pass the 200D continuous aramid fiber through the impregnation tank 1 of thermosetting epoxy resin E-44, the nozzle 2 of the impregnation tank, the active fiber feeding device 3 and the printing head 4;

[0039] Step 2: Set the temperature of the dipping tank 1 to 40°C, and fix the beginning of the prepreg on the printing platform 5;

[0040] Step 3: Start printing, the print head 4 starts to move according to the movement track of the model, and the printing parameters are set as follows: the diameter of the dipping tank nozzle 2 is 0.40mm, the printing speed is 200mm / min, the printing distance is 0.9mm, and the printing layer thickness is 0.1mm ;

[0041] Step 4: Use the heat gun 6 to directly heat and cure the prepreg deposited on the printing platform 5 through the printing head 4, and set the temperature to 22...

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Abstract

The invention discloses a 3D printing system and method for a continuous fiber reinforced thermosetting resin composite material. The 3D printing system comprises a thermosetting resin dipping tank, continuous fibers pass through the thermosetting resin dipping tank and a dipping tank nozzle to be prepared into prepreg, then pass through a fiber active wire feeding device and a printing head in sequence, the prepreg is deposited on a printing platform, and the prepreg is heated and cured through a hot air gun, so that the prepreg is quickly adhered to the printing platform, wherein the diameter of the dipping tank nozzle ranges from 0.35 mm to 0.7 mm, the printing speed ranges from 100 mm / min to 250 mm / min, the printing distance ranges from 0.8 mm to 1.2 mm, the layering thickness ranges from 0.1 mm to 0.4 mm, and the curing temperature is 200 DEG C to 300 DEG C; The 3D printing system has general applicability to forming of most continuous fiber reinforced thermosetting resin and has high forming precision.

Description

technical field [0001] The invention belongs to the technical field of continuous fiber reinforced thermosetting resin composite materials, and in particular relates to a 3D printing system and method of continuous fiber reinforced thermosetting resin composite materials. Background technique [0002] The molding technology of additive manufacturing includes fused deposition molding technology, laser sintering / cladding technology, stereolithography molding technology, etc. It has a series of advantages such as fast molding speed, high precision, and rapid completion of complex parts manufacturing. At present, the 3D printing technology of resin materials, ceramic materials, metal materials and continuous fiber-reinforced thermoplastic resin composites is relatively mature, and there are many studies; while the 3D printing technology of continuous fiber-reinforced thermosetting resin-based composites is rarely studied, and there is no Mature 3D printing equipment suitable for...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C64/20B29C64/118B33Y30/00B33Y10/00
CPCB29C64/20B29C64/118B33Y30/00B33Y10/00
Inventor 鲍崇高董文彩刘陶欣
Owner XI AN JIAOTONG UNIV