3D printing metal-complex-structure supporting slurry, metal slurry and printing method

A complex structure, 3D printing technology, applied in the field of 3D printing technology and craftsmanship, can solve the problems of high price and disadvantage of metal materials, limit the freedom and complexity of printing modeling, and achieve good metal product quality, high strength and density. Effect

Inactive Publication Date: 2017-01-04
CHINA UNIV OF GEOSCIENCES (WUHAN)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This makes it difficult to remove the metal support after 3D printing, which limits the freedom and complexity of printing modeling
The price of metal materials for 3D printing is relatively high, and using them as support materials in printing also causes a certain amount of waste, which is not conducive to reducing costs

Method used

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  • 3D printing metal-complex-structure supporting slurry, metal slurry and printing method

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Embodiment Construction

[0075] The present invention will be further described below in conjunction with drawings and embodiments.

[0076] The present invention provides a support slurry for 3D printing metal complex structures, and the support slurry adopts one of the following formulas:

[0077] (r1) Paraffin wax and carnauba wax with a mass and number ratio of 70±29:30±29;

[0078] (r2) paraffin wax, microcrystalline wax and methyl ethyl ketone with a ratio of parts by mass of 70±19:20±10:10±9;

[0079] (r3) Polypropylene, microcrystalline wax and stearic acid with a mass-number ratio of 57±40:32±30:11±10;

[0080] (r4) Paraffin wax, polyethylene, beeswax and stearic acid with a ratio of parts by mass of 43±21:23±10:33±10:2±1;

[0081] (r5) Paraffin wax, polypropylene, carnauba wax and stearic acid with a mass-number ratio of 63±34:20±19:15±14:2±1;

[0082] (r6) Paraffin wax, polyethylene, carnauba wax and stearic acid with a mass-number ratio of 63±34:20±19:15±14:2±1;

[0083] (r7) Paraffin ...

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Abstract

The invention discloses 3D printing metal-complex-structure supporting slurry, metal slurry and a printing method. The metal slurry and the supporting slurry are respectively charged into a storing device or a feeding device of a multi-nozzle 3D printer; in accordance with a mechanical control instruction, the metal slurry and the supporting slurry are respectively extruded at corresponding positions of a printing plate; a printing head raises or the printing plate descends a certain distance, and the metal slurry and the supporting slurry are respectively extruded again at corresponding positions in accordance with the mechanical control instruction, thereby overlapping the extruded metal slurry and supporting slurry on a previous layer of the metal slurry and supporting slurry. Hence, in accordance with the mechanical control instruction, the metal slurry and the supporting slurry are overlapped layer by layer until completion of printing of a model; by a series of post-processing procedures, the supporting slurry is removed and the metal slurry is sintered into dense metal parts, thereby completing manufacture of the metal parts with a complex structure. In the invention, the supporting slurry is easily removed from the metal parts, so as to realize more advantages in modeling of complex-metal-structure 3D printing.

Description

technical field [0001] The invention relates to a support slurry for 3D printing complex metal structures, a metal slurry and a printing method, and belongs to the field of 3D printing technology and technology. Background technique [0002] With the rapid development of 3D printing technology in recent years, its technology has injected new vitality into the manufacturing industry, especially in aviation, medical, racing, fashion and other industries. This technology can realize the rapid production of highly complex and high-performance products. Development and production, and reduce its production cost, realize small batch, small batch repetitive production, and create high added value. [0003] 3D printing metal materials is a very hot field in 3D printing research and has excellent application prospects. At present, 3D printing metal materials mainly use selective laser melting (SLM) and selective laser sintering (SLS) 3D printing technology to print metal 3D models. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F3/105B33Y70/00
CPCB33Y70/00B22F10/00B22F10/43B22F10/62B22F10/20B22F10/47Y02P10/25
Inventor 熊玮郝亮
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)
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