A metal 3D printing preparation method with bionic surface structure

A surface structure, 3D printing technology, used in additive manufacturing, process efficiency improvement, additive processing, etc., can solve problems such as wear resistance, friction reduction, resistance increase, poor regularity and repeatability, etc., to improve service life, Easy to operate, good wear resistance and resistance performance

Active Publication Date: 2017-11-17
四川天塬增材制造材料有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the bionic surface obtained by these methods is very poor in regularity and repeatability, which affects the effect of wear resistance, friction reduction and resistance increase. Metal additive manufacturing technology can directly manufacture mechanical parts with bionic surface structure

Method used

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  • A metal 3D printing preparation method with bionic surface structure

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Embodiment Construction

[0019] Attached below figure 1 The method for preparing metal 3D printing with bionic surface structure of the present invention will be specifically described.

[0020] A metal 3D printing preparation method with a bionic surface structure. The preparation method includes the following steps:

[0021] 1) Determine the bionic surface structure according to the requirements of the wear resistance and resistance increase performance of metal parts, where the bionic surface structure is a hierarchical structure that can be prepared by laser additive manufacturing forming technology, including: the first-level macrostructure, which The surface changes have been determined during the design of mechanical parts; the second-level microstructure can actually be completed by the laser additive manufacturing in the following steps of the present invention; the third-level microstructure has a minimum size of 10-90μm structure;

[0022] 2) Using simulation technology to compare the friction, ...

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Abstract

The invention relates to a metal 3D printing preparation method with a bionic surface structure. The preparation method includes the following steps: determining the hierarchical structure of the bionic surface with wear resistance and resistance increase; structural parameters of the bionic surface and their optimization; three-dimensional digital modeling of the bionic surface structure Design; digital-analog synthesis and slice layering of formed parts; laser additive manufacturing of formed parts; non-destructive testing of formed parts with bionic surfaces; post-processing to obtain final formed parts. The preparation method has the advantages of good bionic effect on the surface, convenient operation, reliable performance, low comprehensive cost, good wear resistance and resistance increase performance on the surface of the formed part, can meet the use requirements, improve its service life, and can be widely popularized and applied.

Description

Technical field [0001] The invention relates to the technical field of metal additive manufacturing, in particular to a metal 3D printing preparation method with a bionic surface structure. Background technique [0002] The wear failure of mechanical parts is the main form of damage, and according to the tribological point of view, the surface of the part is usually distributed with different heights of micro-protrusions, machined or finished surfaces, and the shape and size of the micro-protrusions And the densely distributed situation is different. And bionics shows that the surface of an animal actually has a surface structure. For example, because of its foot pad structure, animals can wear-resistant and reduce friction when they walk or even run wildly. On the other hand, they have the ability to keep their body balanced without slipping under their feet. Has the ability to increase resistance. In another example, the epidermis of earthworms has a reticulated porous struc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F3/105B33Y10/00
CPCB33Y10/00B22F10/00B22F10/66B22F10/34B22F12/41B22F10/36B22F10/64B22F10/28B22F10/366B22F10/25B22F10/80Y02P10/25
Inventor 顾德阳
Owner 四川天塬增材制造材料有限公司
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