正交实验设计优选FDM_3D打印工艺参数  

Orthogonal Experiment Design Optimizing FDM 3D Printing Process Parameters

作　　者：吴卫萍[1] 刘松[1] 刘旭[1] Wu Weiping;Liu Song;Liu Xu(School of Advanced Manufacturing,Guangdong Songshan Polytechnic College,Shaoguan,Guangdong 512126,China)

机构地区：[1]广东松山职业技术学院先进制造学院,广东韶关512126

出　　处：《机电工程技术》2024年第9期271-274,共4页Mechanical & Electrical Engineering Technology

基　　金：2021年韶关市科技计划项目(210724024530099);2022年广东省高职院校产教融合创新平台项目(2022CJPT008);2022年广东松山职业技术学院质量工程项目(2022SXJD02)。

摘　　要：由于FDM_(3)D打印工艺参数对制件力学性能有较大影响,采用正交实验设计方法,系统地探讨了聚乳酸(PLA)材料在熔融沉积成型3D打印过程中,不同工艺参数对试样拉伸性能的影响程度。实验结果表明,在4个工艺参数中,填充密度对PLA试件的拉伸性能影响最为显著,而打印速度对拉伸强度的影响则相对较小。通过极差分析得出,当打印层厚为0.25 mm,填充密度为70%,填充速度为50 mm/s,并采用内六角填充模式时,可以制得拉伸性能最优的PLA制件,方差分析表明填充密度对抗拉强度影响较显著(P<0.05),层高、打印速度、填充单元对抗拉强度影响均不显著。最后,通过实验证实了上述工艺下的试件具有最高的拉伸强度。这一发现对于优化FDM 3D打印工艺参数,提升PLA制件力学性能具有重要的指导意义。Due to the significant influence of FDM 3D printing process parameters on the mechanical properties of the parts,an orthogonal experimental design method is adopted to systematically explore the influence of different process parameters on the tensile properties of polylactic acid(PLA)materials during the 3D printing process of melt deposition molding.The experimental results show that among the four process parameters,the filling density has the most significant impact on the tensile performance of PLA specimens,while the printing speed has a relatively small impact on the tensile strength.Through range analysis,it is found that when the printing layer thickness is 0.25 mm,the filling density is 70%,the filling speed is 50 mm/s,and the hexagonal filling mode is used,the PLA component with the best tensile performance can be produced.The variance analysis shows that the filling density has a significant impact on the tensile strength(P<0.05),while the layer height,printing speed,and filling unit have no significant impact on the tensile strength.Finally,it is confirmed through experiments that the specimens under the above process have the highest tensile strength.This discovery has important guiding significance for optimizing FDM 3D printing process parameters and improving the mechanical properties of PLA parts.

关 键 词：正交实验 FDM PLA 工艺参数 拉伸性能 

分 类 号：TP391.73[自动化与计算机技术—计算机应用技术] TQ323.4[自动化与计算机技术—计算机科学与技术]