316L/POM复合材料FDM成型件成型质量的研究  

Research on Forming Quality of 316L/POM Composite Parts Fabricated by Fused Deposition Modeling

作　　者：刘斌[1] 王玉香[1] 林梓威 张涛 LIU Bin;WANG Yu-xiang;LIN Zi-wei;ZHANG Tao(The Key Laboratory of Polymer Processing Engineering of Ministry of Education,Guangdong Provincial Key Laboratory of Technique and Equipment for Macromolecular Advance Manufacturing,National Engineering Research Center of Novel Equipment for Polymer Processing,South China University of Technology,Guangzhou 510641,China;Print-Rite Unicorn Image Products Company Limited of Zhuhai,Zhuhai 519000,China)

机构地区：[1]华南理工大学聚合物成型加工工程教育部重点实验室,广东省高分子先进制造技术及装备重点实验室,聚合物新型成型装备国家工程研究中心,广东广州510641 [2]珠海天威飞马打印耗材有限公司,广东珠海519000

出　　处：《塑料科技》2020年第4期32-35,共4页Plastics Science and Technology

基　　金：广东省省级科技计划项目(2017B090913003)。

摘　　要：提出了一种基于熔融沉积成型(FDM)的金属3D打印技术,使用FDM打印机打印金属/高分子复合材料,得到的打印坯通过后处理脱脂和烧结成为金属零件。使用正交试验方法研究了分层厚度、喷嘴温度、填充线宽、成型方向对打印坯尺寸精度的影响,使用扫描电子显微镜(SEM)观察了不同分层厚度的打印坯的内部结构。实验结果表明:打印坯的尺寸精度随着喷嘴温度和填充线宽的增大而提高,但成型方向对尺寸精度的影响并不明显;分层厚度是影响打印坯成型质量的主要因素,分层厚度越小,打印坯内部层间间隙越小,成型质量越高。A new metal 3D printing technology based on Fused Deposition Modeling(FDM)was proposed in this paper.Metal/polymer composite filament is printed by the printer based on FDM,and then debinding and sintering are conducted on the printed parts to form metal parts.Process flow of this technique was introduced,the effects of layer thickness,nozzle temperature,filling line width and forming direction on the dimensional accuracy of the printed parts were studied by orthogonal test method,and the internal structure of the printed parts with different layer thicknesses was observed by scanning electron microscope(SEM)in this paper.The experimental results show that the dimensional accuracy of the printed parts increases with the increase of nozzle temperature and filling line width,but the influence of the molding direction on the dimensional accuracy is inconspicuous.The main factors affecting the printed parts is the layer thickness,and the smaller the layer thickness,the higher the forming quality and the smaller the gap between layers in the printed parts.

关 键 词：熔融沉积成型 复合材料 成型质量 尺寸精度 

分 类 号：TP391.73[自动化与计算机技术—计算机应用技术] TB332[自动化与计算机技术—计算机科学与技术]