FDM 3D打印聚醚醚酮零件摩擦磨损特性研究
Research on Friction and Wear Characteristics of FDM 3D Printed Polyetheretherketone Parts
田爽 1乌日开西·艾依提 1阿依古丽·喀斯木1
作者信息
- 1. 新疆大学机械工程学院,新疆乌鲁木齐 830017
- 折叠
摘要
为研究3D打印各向异性对摩擦性能的影响,通过熔融沉积成型(FDM)制备了 0°、45°、90° 3种打印角度的聚醚醚酮(PEEK)试样,研究3种不同打印角度及载荷变化对PEEK试样摩擦学性能及磨损机制的影响.利用MFT-5000摩擦磨损试验机对PEEK材料进行室温水润滑下的往复滑动摩擦试验,用超景深显微镜观察磨损后表面形貌.试验结果表明:不同载荷下3种打印角度试样的摩擦因数由大到小依次为0°试样、90°试样、45°试样,磨损率由大到小依次为90°试样、45°试样、0°试样;随着载荷的增大,3种不同打印角度试样的摩擦因数均呈现下降趋势,磨损率则呈现上升趋势;PEEK磨损机制是黏着磨损以及疲劳磨损引起的表层脱落.
Abstract
In order to study the effect of 3D printing anisotropy on frictional properties,polyether ether ketone(PEEK)specimens with three printing angles of 0°,45°,and 90° were prepared by fused deposition molding(FDM),and the effects of three different printing angles and load variations on the tribological properties and wear mechanisms of PEEK specimens were investigated.The MFT-5000 friction and wear tester was used to perform a reciprocal sliding friction test on PEEK material with water lubrication at room temperature,and the surface morphology after wear was observed with an ultra-deep field microscope.The results show that the friction coefficients of the three printing angle specimens under dif-ferent loads are in descending order:0°specimen,90°specimen,and 45° specimen,and the wear rate is in descending or-der:90°specimen,45°specimen,and 0°specimen.As the load increases,the friction coefficients of the specimen with three different printing angles show a decreasing trend,and the wear rate shows an increasing trend.The wear mechanism of PEEK is surface layer peeling caused by adhesive wear and fatigue wear.
关键词
3D打印/打印角度/聚醚醚酮/摩擦磨损/复合材料Key words
3D printing/printing angle/PEEK/friction wear/composite引用本文复制引用
基金项目
新疆维吾尔自治区自然科学基金(2020D01C067)
出版年
2024
NETL
NSTL
维普
万方数据