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Three-dimensional printing forming device and method based on metal microdroplet track direction control

A three-dimensional printing and metal technology, applied in the field of metal droplet three-dimensional printing and forming devices, can solve the problems of difficult to form three-dimensional structural metal parts and the like

Active Publication Date: 2015-06-17
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the disadvantage that the existing additive manufacturing method based on uniform metal droplet injection is difficult to form three-dimensional complex metal parts, the present invention provides a three-dimensional printing forming device for metal droplet trajectory control

Method used

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  • Three-dimensional printing forming device and method based on metal microdroplet track direction control
  • Three-dimensional printing forming device and method based on metal microdroplet track direction control
  • Three-dimensional printing forming device and method based on metal microdroplet track direction control

Examples

Experimental program
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Effect test

Embodiment 1

[0028] The forming process of workpieces with conical surfaces. Firstly, metal droplets 3 are directly deposited to obtain the vertical structure of the workpiece. During this process, when the suction device 10 is not working, the floating block 11 is pushed by the spring 7 to separate from the fixed block 9. At this time, the metal droplets 3 can be directly deposited on the substrate. Above, the sprayed metal droplets 3 are accumulated on the substrate moving according to a certain trajectory, forming a vertical part with a tapered part 17, that is Figure 4 (a) A single-walled circular tube perpendicular to the substrate is shown. When the conical surface is partially stacked, the suction device 10 is energized to work, the floating block 11 and the fixed block 9 merge, and the metal droplets 3 are directly sprayed into the guide rail 5 on the guide block 4 below it. Then, according to the inclination angle α between the conical surface of the workpiece 17 with the conical ...

Embodiment 2

[0030] The forming process of parts with cantilever structure. When forming a part 18 with a cantilever structure, first directly deposit the metal droplets 3 to obtain the vertical structure of the part. In this process, it is the same as the steps in Embodiment 1, and the vertical matrix of the part is formed by stacking on the substrate layer by layer, such as Figure 5 (a) shown. Then start the sucker 10, the floating block 11 merges with the fixed block 9, and the metal droplets 3 are directly accumulated in the guide rail 5 on the guide block 4 below it. At this time, the rotation angle ω of the stepping motor is set so that the guide rail 5 is parallel to the horizontal plane. The front end of the guide rail 5 is in a horizontal position and is aligned with a certain layer of the "main wall". After the metal droplet 3 enters the guide rail 5, the advancing direction changes along the arc of the guide rail 5, and finally becomes horizontal. The metal droplet 3 arrives ...

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Abstract

The invention discloses a three-dimensional printing forming device and method based on metal microdroplet track direction control. The device and method is used for solving the technical problem that the existing additive manufacturing method based on even metal microdroplet injection has difficulty in forming a three-dimensional structure complex metal workpiece. The device comprises a microdroplet track direction control device composed of a metal microdroplet injection device (1), a guide block (4), a fixed shaft (8), a guide connection rod (12), a rotating wheel (13) and a stepping motor (14). The microdroplet track direction control device is connected onto the metal microdroplet injection device (1) through the fixed shaft (8). The guide block (4) is used for conducting stacking by rotating the included angle alpha under driving of the rotating wheel (13) and the stepping motor (14) through the guide connection rod (12). According to the method, a guide track can control the metal microdroplet flying and accumulation direction according to the forming requirements of the workpiece to form a complex three-dimensional metal structure which is difficult to form by the existing microdroplet injection printing device.

Description

technical field [0001] The invention relates to a metal droplet three-dimensional printing forming device, in particular to a metal droplet trajectory control three-dimensional printing forming device. It also relates to a three-dimensional printing forming method for metal droplet orbit control using the device. Background technique [0002] The additive manufacturing technology based on uniform metal droplet injection is a technology that learns from the principle of inkjet printing to realize the forming of metal parts by controlling the injection of tiny metal droplets and printing layer by layer. Compared with other additive manufacturing technologies using high-energy beams, this technology has outstanding advantages such as no need for expensive high-power high-energy sources and special raw materials, low equipment costs and operating costs, no pollutants and waste generation during the forming process, and is expected to Fast, low-cost additive manufacturing for co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F3/115
Inventor 罗俊齐乐华钟宋义张代聪杨方
Owner NORTHWESTERN POLYTECHNICAL UNIV