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Method for making support removal of metal 3D printing convenient by adoption of low-melting-point alloy

A 3D printing, low melting point technology, applied in the field of metal 3D printing, can solve the problems of long time consumption, complicated operation, long time, etc., and achieve the effect of saving manpower and material costs, saving time, and good surface quality

Inactive Publication Date: 2017-09-01
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this method needs to select appropriate auxiliary materials and dissolving agents, the operation is more complicated, and it still takes a long time, and the more support materials used in printing, the longer the time it takes to dissolve
In addition, support materials and solvents cannot be recycled, which does not meet the concept of green manufacturing

Method used

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  • Method for making support removal of metal 3D printing convenient by adoption of low-melting-point alloy
  • Method for making support removal of metal 3D printing convenient by adoption of low-melting-point alloy

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Embodiment Construction

[0021] It should be pointed out that the following detailed descriptions are all exemplary and are intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0022] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations thereof.

[0023] The method disclosed in the present invention uses a low-melting-point alloy to facilitate meta...

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Abstract

The invention discloses a method for making support removal of metal 3D printing convenient by adoption of a low-melting-point alloy. By the adoption of a double-sprayer print system, a main sprayer supplies a main body material and used for printing a main body component of a product. An auxiliary sprayer supplies the low-melting-point alloy material and is used for printing a supporting piece of the product. After the product is printed and formed, heat treatment is conducted, and then the supporting material is molten. The method can be applied to a 3D printing manner adopting direct metal smelting, and a low-melting-point alloy auxiliary supporting material can be removed at the same time when a heat treatment technology is conducted; and in this way, compared with prior processing, no new technological link is added in the whole process; compared with other post-processing manners, the method can greatly save time, reduce labor and material cost and obtain a better surface quality; and meanwhile, the molten low-melting-point alloy can be recycled, and the method better meets the environment-friendly manufacturing principle.

Description

technical field [0001] The invention relates to a metal 3D printing technology, in particular to a method for removing supporting materials in the later stage of metal 3D printing. Background technique [0002] 3D printing technology has outstanding advantages in the manufacture of workpieces with complex shapes through the principle of layer-by-layer superposition. The methods for 3D printing of metal components can be divided into two types, direct energy deposition and powder bed fusion. Among them, the direct energy deposition method uses the nozzle to supply powder or wire, and the energy of the laser or electron beam is used at the nozzle to form The molten pool is directly cladding the raw materials, and stacking them layer by layer according to the predetermined path to obtain the formed metal. Compared with the powder bed fusion type, the direct energy deposition type has a higher printing speed, and can realize simultaneous printing of multiple materials when usin...

Claims

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Application Information

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IPC IPC(8): B22F3/105B33Y10/00
CPCB33Y10/00B22F10/00B22F10/43B22F10/64B22F12/55B22F12/53B22F10/73Y02P10/25
Inventor 任冰万熠孟祥旗曹恩源王宏卫
Owner SHANDONG UNIV
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