等离子抛光时间对3D打印多孔钛表面粗糙度的影响  

Influence of Electrolytic Plasma Polishing Time on Surface Roughness of Porous Titanium by 3D Printing

作　　者：崔祎赟 熊夏青 徐凯 王金武[1,3] 万克明 Cui Yiyun;Xiong Xiaqing;Xu Kai;Wang Jinwu;Wan Keming(School of Translational Medicine,Shanghai Jiao Tong University,Shanghai 200240,China;School of Mechanical Engineering,Shanghai Jiao Tong University,Shanghai 200240,China;Shanghai Key Laboratory of Orthopaedic Implant,Department of Orthopaedics,Shanghai Ninth People’s Hospital,Shanghai Jiao Tong University School of Medicine,Shanghai 200011,China)

机构地区：[1]上海交通大学转化医学研究院,上海200240 [2]上海交通大学机械与动力工程学院,上海200240 [3]上海交通大学医学院附属第九人民医院骨科上海市骨科内植物重点实验室,上海200011

出　　处：《稀有金属材料与工程》2022年第6期2161-2166,共6页Rare Metal Materials and Engineering

基　　金：国家科技部重点研发计划(2018YFB1105600,2018YFA0703000);国家自然科学基金(82072412,81772326);上海市科委项目(19XD1434200,18431903700);上海交通大学医学院双百人计划(20152224);转化医学国家重大科技基础设施(上海)开放课题(TMSK-2020-118)。

摘　　要：利用3D打印技术制作仿天然骨的多孔钛骨科植入物具有广阔的前景,等离子抛光技术作为表面技术的一种,可有效去除3D打印多孔钛零件表面附着的颗粒物,降低表面粗糙度。采用三重扫描激光显微系统分析了不同等离子抛光时间下多孔钛零件外表面及内层孔结构外表面的表面形貌并测量其表面粗糙度值。结果表明,抛光时间越长,表面越顺滑,表面粗糙度越低,抛光时间是影响表面粗糙度的重要因素。根据抛光时间与表面粗糙度的拟合曲线,得出了在保证零件内外表面的表面粗糙度在最优值范围下的抛光时间区间。Porous titanium orthopedic implants fabricated by 3D printing have golden prospects.As one of the surface technologies,electrolytic plasma polishing can effectively remove the powder particles attached to the surface of 3D printed porous titanium parts and can reduce the surface roughness.In this paper,the surface morphology and surface roughness of the external and inner surface tested for different plasma polishing time were analyzed by triple scanning laser microscope.The results show that electrolytic plasma polishing is effective to reduce surface roughness.The longer the polishing time,the smoother the surface and the lower the surface roughness.The polishing time is an important factor affecting the surface roughness.By the fitting curve,the surface roughness of the external and inner surface can be guaranteed to be within a reasonable range by the control of polishing time.

关 键 词：等离子抛光 多孔钛 3D打印 表面粗糙度 

分 类 号：TB383[一般工业技术—材料科学与工程]