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A 3D metal printing system and method

A printing system, metal technology, applied in the field of metal printing, to achieve the effect of reducing the difficulty of control and flexible control

Active Publication Date: 2017-12-19
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is how to reduce the power consumption and control difficulty of 3D metal printing and the complexity of the 3D metal printing system

Method used

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  • A 3D metal printing system and method
  • A 3D metal printing system and method
  • A 3D metal printing system and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] Example 1: Printing metal particles

[0060] printing system such as figure 1 As shown, it includes: printing nozzle 1, thermostat 2, bath 3, printing substrate 4, electrode metal plate 5, power supply and motion control module; printing nozzle includes 9 nozzles, arranged in a 3×3 array, printing nozzle 1 and printing The substrates 4 are vertically opposite, and the printed substrate 4 is placed on the electrode metal plate 5 . The printing substrate 4 and the electrode metal plate 5 are in the bath 3 ; In this embodiment, the inner diameter of the print head 1 is 0.51 mm.

[0061] The bath 3 is a cuboid container made of plexiglass with a volume of 10L, and the NaOH solution with a concentration of 0.2mol / L is filled inside. The printing substrate 4 is selected as an aluminum alloy plate, and the material of the electrode metal plate 5 is copper.

[0062] Select BiSn 40 (The melting point is 138°C) is the printed metal ink. Set the thermostat 2 to 160°C and the t...

Embodiment 2

[0063] Example 2: Printing method of one-dimensional metal rod

[0064] The printing system is as in Example 1.

[0065] Metallic ink for printing chooses BiSn 40 (The melting point is 138°C), the incubator is set at 160°C, the bath is set at 80°C, the inner diameter of the print head is 0.51mm, the voltage between the print head and the electrode plate is set at 0.50V, the print head moves vertically upwards and set The speed is 1mm / s. After the droplet falls, it fuses with the deposited metal wire and solidifies rapidly to obtain a thin metal rod. The printing process is as follows: Figure 4 shown.

Embodiment 3

[0066] Embodiment 3: printing method of two-dimensional metal structure

[0067] The printing system is as in Example 1.

[0068] The two-dimensional structure to be printed is a hexagonal star metal surface, choose BiSn 40 (The melting point is 138°C) is the printed metal ink, the thermostat is set to 160°C, the bath is set to 80°C, the inner diameter of the print head is 0.51mm, the voltage between the print head and the electrode plate is set to 0.50V, set the print head The running speed is 1mm / s, and the running path of the nozzle is set in the motion control module, and then the printing is started. Finally, the printed hexagonal star metal plane structure is taken out and surface processed to obtain the finished product. The printing process is as follows: Figure 5 shown.

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Abstract

The invention discloses a 3D metal printing system and method. The system includes a printing nozzle, an electrolyte, a bath, a printing base, an electrode plate and a power supply; The liquid metal ink is ejected under the action of the potential difference with the electrode plate. The present invention realizes the control of the drop and stop of the metal ink by controlling the potential difference between the printing nozzle and the electrode plate. Because of the pure electric field control, the moving parts like the conventional mechanical pump are eliminated, thereby reducing the The complexity, cost, and power consumption of the printing system also improve the reliability of printing; in addition, the pure electrical control method of the present invention realizes flexible control of the metal printing process and greatly reduces the difficulty of control.

Description

technical field [0001] The present invention relates to the technical field of metal printing, and more specifically to a 3D metal printing system and method. Background technique [0002] 3D metal printing is a kind of additive manufacturing technology. It is different from traditional material processing methods. It is a manufacturing technology based on three-dimensional digital models. It is a method of printing ink materials such as plastic, metal or ceramic powder layer by layer. technology to manufacture items. 3D metal printing is an important development direction of current 3D metal printing manufacturing technology, among which, laser engineered net shaping technology (Laser Engineered Net Shaping, LENS), selective laser sintering technology (Selective Laser Sintering, SLS) and electron beam selective melting Technology (Electron Beam Selective Melting, EBSM) is three typical 3D metal printing methods. These printing technologies all use metal powder as printing...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F3/115
Inventor 王磊刘静
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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