Variable cross-section opening grid supporting structure and generation method thereof

A support structure and variable cross-section technology, applied in 3D object support structure, additive manufacturing, processing and manufacturing, etc., can solve the problems of increased post-processing difficulty, powder cannot be removed, material waste, etc., to shorten the forming time and reduce post-processing difficulty , cost reduction effect

Pending Publication Date: 2019-03-22
西安国宏天易智能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is formed at the same time as the parts, connected up and down with the parts, or with the substrate. After the forming is completed, the powder in the grid cannot be remov

Method used

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  • Variable cross-section opening grid supporting structure and generation method thereof
  • Variable cross-section opening grid supporting structure and generation method thereof
  • Variable cross-section opening grid supporting structure and generation method thereof

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Embodiment Construction

[0032] The present invention will be further described in detail below in conjunction with specific embodiments, which are explanations of the present invention rather than limitations.

[0033] Such as image 3 , Figure 5 As shown, a variable cross-section open-hole grid support structure according to the present invention includes a plurality of open-hole grid support units 1 stacked in sequence along the vertical direction, and each open-hole grid support unit 1 is composed of multiple The grid unit body 2 is arrayed along the horizontal direction. The grid unit body 2 is an empty pipe structure arranged along the vertical direction. The grid openings 3 form a powder outlet channel. The size of the grid unit body 2 of a plurality of opening grid support units 1 along the vertical direction increases sequentially. The lower layer of two adjacent opening grid support units 1 The size of the grid unit body 2 of the perforated grid support unit 1 is twice that of the grid un...

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Abstract

The invention discloses a variable cross-section opening grid supporting structure and a generation method thereof. Opening grid supporting units are formed by arraying a plurality of grid units in different sizes, and a plurality of opening grid supporting units are overlapped so that support units are formed for changing the support form; the side walls of the opening grid supporting units are provided with grid openings penetrating through the opening grid supporting units horizontally so that a lateral powder discharging channel is formed; thus, powder in supports can be cleared completelyafter forming, and recycled before heat treatment after forming of parts; the printing rate is increased, and the post-processing difficulty is reduced; a cross-section structure is formed through three-dimensional drawing software, and the supports are arrayed and arranged according to the requirements; the powder that can not be cleared from the interior of a traditional grid support is clearedcompletely, and the usage amount of the forming powder is reduced; the printing rate is higher through design of the grip supports with lateral powder discharge, and the forming time is shortened; and the efficiency is improved, and the cost is reduced.

Description

technical field [0001] The invention relates to a support in selective laser melting forming technology, in particular to a variable cross-section opening grid support structure and a generation method thereof. Background technique [0002] Selective laser melting forming technology is a rapid additive manufacturing forming technology. It uses laser heat source and accumulates layer by layer after powder coating to quickly realize the near-net shape of high-complexity parts. Given its layer-by-layer forming method, it is necessary to add grid support to its suspended surfaces, edges, points, and features that cannot be self-supporting to ensure the smooth forming of the parts, while achieving the required surface roughness and dimensional accuracy. [0003] Existing mesh supports such as figure 1 with figure 2 As shown in the figure, the grid support form included in the software is added for support, which is a vertical grid, and only the size of a single grid unit and t...

Claims

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Application Information

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IPC IPC(8): B29C64/153B29C64/386B29C64/40B33Y30/00B33Y50/00B33Y40/00
CPCB29C64/153B29C64/386B29C64/40B33Y30/00B33Y40/00B33Y50/00
Inventor 李哲
Owner 西安国宏天易智能科技有限公司
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