Powder laying type line printing forming additive manufacturing method

A technology of additive manufacturing and powder coating, which can be used in processing and manufacturing, manufacturing tools, and additive manufacturing. big effect

Active Publication Date: 2021-08-24
王祥宇
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Slow molding efficiency an

Method used

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  • Powder laying type line printing forming additive manufacturing method
  • Powder laying type line printing forming additive manufacturing method
  • Powder laying type line printing forming additive manufacturing method

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Embodiment Construction

[0045] The invention proposes an additive manufacturing method for powder materials in the form of powder laying and printing. The method uses not limited to a powder material A that is easy to be fused or sintered and a powder material B that is not easy to be fused or sintered, and the powder pattern printing is completed by using the powder printing linear array module in the present invention, followed by The heat source heats the powder material indiscriminately, so that the pattern of the powder material A is melted or sintered, and the product is obtained by printing layer by layer. In the actual measurement, the coated sand that can be sintered is selected as the powder material A, and the quartz sand that cannot be sintered is selected as the powder material B. The particle size of the two powders is 70-100 mesh. The specific implementation includes the following steps:

[0046] (1) The first is to prepare the CAD 3D model data. This printing selects a model body of ...

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Abstract

The invention discloses a powder laying type line printing forming additive manufacturing method which is not limited to a powder material A which is easy to melt or sinter and a powder material B which is not easy to melt or sinter, and a 3D model slice graph is printed by the powder material A and the powder material B in a powder laying mode through a powder line printing module, and is heated by a follow-up heat source without difference at the same time, so that particles of the powder material A in a discrete state are bonded into sheets in the horizontal direction, and layers are bonded into a body in the vertical direction, wherein the powder material B is a boundary inhibitor and a supporting material of the powder material A. The additive manufacturing method has the beneficial effects that the problem that a traditional powder printing process depends on the point-by-point curing forming principle of a scanning device or track control is solved, the forming efficiency and the forming breadth are improved, and meanwhile the utilization rate of the powder material used for forming is high.

Description

technical field [0001] The invention relates to the field of additive manufacturing, that is, 3D printing, in particular to an additive manufacturing method formed by powder spreading printing. Background technique [0002] Additive manufacturing (AM), also known as solid freeform manufacturing or 3D printing, is the manufacture of three-dimensional objects built from raw materials (usually powders, liquids, suspensions or molten solids) in a series of two-dimensional layers or cross-sections process. [0003] Traditional additive manufacturing methods based on powder materials to construct printed entities are mainly divided into the following methods: Selective Laser Sintering (SLS) method, Selective Laser Melting SLM (Selective Laser Melting) method, binder injection molding 3DP method. These three main molding methods are to lay a layer of powder on the powder bed first. The function of laying powder here is to create a new powder layer, and the subsequent printing act...

Claims

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Application Information

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IPC IPC(8): B29C64/153B29C64/20B29C64/214B29C64/245B29C64/307B29C64/336B29C64/393B28B1/00B28B17/00B22F10/28B22F10/85B33Y10/00B33Y30/00B33Y40/00B33Y40/10B33Y50/02B33Y70/10
CPCB29C64/153B29C64/20B29C64/214B29C64/245B29C64/321B29C64/393B28B1/001B28B17/00B28B17/0063B33Y10/00B33Y30/00B33Y40/00B33Y50/02Y02P10/25
Inventor 王祥宇
Owner 王祥宇
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