FDM五轴3D打印支撑消减算法研究

王铮; 赵东标

doi:10.13433/j.cnki.1003-8728.20220123

FDM五轴3D打印支撑消减算法研究

doi: 10.13433/j.cnki.1003-8728.20220123

王铮,
赵东标^,

南京航空航天大学机电学院, 南京 210001

详细信息

作者简介:
王铮(1997-), 硕士研究生, 研究方向为五轴3D打印, 机电控制及自动化, jxdzwz@nuaa.edu.cn

通讯作者:
赵东标, 教授, 博士生导师, zdbme@nuaa.edu.cn

中图分类号: TP391
计量
- 文章访问数: 62
- HTML全文浏览量: 38
- PDF下载量: 14
- 被引次数: 0
出版历程
- 收稿日期: 2021-08-22
- 刊出日期: 2023-10-25

Study on Elimination-reduction Algorithm of Support in Five-axis 3D Printing

WANG Zheng,
ZHAO Dongbiao^,

College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210001, China

摘要

摘要: 利用传统3D打印技术制造复杂模型时辅助支撑结构的生成与去除需要浪费大量时间与材料，为了解决这个问题，提出了一种基于模型分解的五轴3D打印算法，使得空间模型能够实现辅助支撑消减的打印制造。该算法先利用"层切法"对一个空间模型进行分解，并在分解过程中维护一个各个节点与各个分解子模型相对应的多叉分解树。然后再依据多叉分解树的结构与相应树节点的信息，规划出五轴3D打印设备的模型打印路径。在自研五轴增材制造系统的帮助下，该算法能进行一般模型的分解与辅助支撑消减的模型打印。
- 五轴 /
- 3D打印 /
- 模型分解 /
- 无支撑
Abstract: Traditional 3D printing technology wastes a lot of time and materials in the generating and removing of the auxiliary support structure for building complex models. To solve this problem, a five axis 3D printing algorithm based on model decomposition is proposed, which makes it possible to print models with supported structure reduction. The algorithm can firstly decompose a model with layer-slicing method and maintain a multiple decomposition tree with each node saving a relevant model information. According to the structure of the multiple decomposition tree and its corresponding information, the printing path of the five axis device can be planned. With the help of five axis manufacturing system, the algorithm can decompose some normal models to print with the supported structure reduction.
- five-axis /
- 3D printing /
- model decomposition /
- unsupported

HTML全文

图 1 五轴3D打印流程简介

Figure 1. Flow chart of five-axis 3D printing

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图 2 假定输入模型: 斯坦福兔子Bunny

Figure 2. Expected input model: Stanford rabbit

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图 3 需支撑打印的集合区域MS

Figure 3. Set regions MS needing support structure

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图 4 轮廓判别示意图

Figure 4. Diagram of contour discrimination

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图 5 分割区域判别模型示意图

Figure 5. Diagram of segmentation region discrimination model

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图 6 分割区域判别实现过程

Figure 6. Algorithms of discrimination of segmentation regions

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图 7 边界线与分割平面示意图

Figure 7. Diagram of edge line and segmentation plane

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图 8 模型分割

Figure 8. Model segmentation

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图 9 模型分割实现过程

Figure 9. Algorithms of model segmentation

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图 10 存储分解结构的树

Figure 10. Trees for storing decomposition structures

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图 11 两种不同遍历方式确定的模型分解子块打印顺序

Figure 11. Printing order of sub-models determined by two kinds of different traversal patterns

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图 12 情况1)干涉情况示意图

Figure 12. Diagram of situation 1) interference

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图 13 情况2)干涉情况示意图

Figure 13. Diagram of situation 2) interference

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图 14 打印结构比对

Figure 14. Comparison of printing structures

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图 15 成品比对

Figure 15. Comparison of printed models

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图 16 模型b)打印过程

Figure 16. Model b printing process

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表 1 三轴与五轴模型打印消耗对比

Table 1. Comparison of consumption between three axis model printing and five axis model printing

模型	三轴打印时间/min	五轴打印时间/min	打印时间减少率/%	材料消耗减少率/%
a)	134	93	30.6	48.72
b)	103	75	27.2	29.17
c)	279	165	40.9	26.88
d)	277	194	30.0	13.51

下载: 导出CSV

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