5-Axis Curved Layer Material Extrusion Modeling Device and Processing Based on Model Decomposition

doi:10.7652/xjtuxb201904004

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5-Axis Curved Layer Material Extrusion Modeling Device and Processing Based on Model Decomposition

更新时间：2025-07-09

- 5-Axis Curved Layer Material Extrusion Modeling Device and Processing Based on Model Decomposition
- Vol. 53, Issue 4, Pages: 24-30(2019)
- 作者机构：
  
  西安交通大学机械制造系统工程国家重点实验室,西安,710049
- 作者简介：
- 基金信息：
- DOI：10.7652/xjtuxb201904004
  CLC： TQ320.5
- Online First：10 April 2019，
  
  Published：2019
- 稿件说明：
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5-Axis Curved Layer Material Extrusion Modeling Device and Processing Based on Model Decomposition[J]. 2019, 53(4): 24-30.
DOI：

5-Axis Curved Layer Material Extrusion Modeling Device and Processing Based on Model Decomposition[J]. 2019, 53(4): 24-30. DOI： 10.7652/xjtuxb201904004.

摘要

针对传统平面熔融沉积成型(FDM)只能在平面内排布丝材

导致零件力学性能差、表面粗糙度高、浪费材料等问题

研究了曲面分层五轴挤出打印装置及工艺。首先

以球面并联机器人作为双轴转动成型平台

结合经典的并联臂型三维挤出打印机

搭建曲面分层五轴挤出打印设备; 然后

以底层曲面为基准

将零件的三维模型分解为按照打印顺序排列的曲面

每层曲面再分解为按宽度铺满曲面的丝材路径; 之后

按照坐标变换公式和位姿反解公式在下位机控制软件Marlin固件中编写轨迹规划函数

解释并执行零件路径规划文件进行曲面分层五轴三维打印。通过对零件进行力学试验

相同零件的五轴挤出打印比三轴挤出打印

最大破坏力由(189.37±8.7)N提高到了(445.54±52.57)N

材料消耗减少了46%。因此

低成本、高精度的五轴三维打印设备能够打印高强度、高刚度、无支撑、表面粗糙度低的零件

在曲面结构打印、无支撑结构打印以及复合材料连续打印等方面有重要的应用前景。

Abstract

Since 3-axis flat layer extrusion modeling results in lower mechanical properties

stair-step effect in the surface of a part

and hanging structures cannot model without support

this study researches 5-axis curved layer extrusion modeling device and processing. First

select a spherical parallel manipulator as the double-rotating platform

combine it with a 3-axis parallel arm 3D-printing machine

and assemble them into a 5-axis extrusion modeling machine. Second

decompose the model into a series of numbered curved layers based on the bottom envelope surface

then decompose each curved layer to generate a curved path file

which is a set of point coordinates with position and angle. Then

according to the coordinate transformation and posture inverse solution

code the trajectory planning function in the slave computer firmware Marlin

which could parse and execute the 5-axis path planning commands. By implementing load-displacement tests

we can affirm that 5-axis extrusion modeling could raise the fracture load from(189.37±8.7)N to(445.54±52.57)N

print non-support hanging structures

obtain smoother surface

and reduce 46% of material consumption. Therefore

this low cost and high accuracy 5-axis extrusion modeling machine may have a broad application prospect in stronger and stiffer printing

curved layer printing

non-support structures printing and continuous composite material printing.

关键词

Keywords

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