齿科用Co25Cr5W5Mo合金粉末制备及激光选区熔化成形打印件性能分析  

Preparation of Co25Cr5W5Mo alloy powder for dentistry and its performance analysis of SLM printed parts

作　　者：兰剑 刘立科 王庆相 张若冰 左振博 梁书锦 LAN Jian;LIU Like;WANG Qingxiang;ZHANG Ruobing;ZUO Zhenbo;LIANG Shujing(Sino-Euro Materials Technologies of Xi'an Co.,Ltd.,Xi'an ERC of 3D Printing Metal Powder Material,Xi'an 710018,China;Shaanxi Medical Device Quality Institute,Xianyang 712046,China;Shaanxi Center for Drug Evaluation,Xi'an 710065,China)

机构地区：[1]西安欧中材料科技有限公司西安市3D打印用金属粉末材料工程技术研究中心,陕西西安710018 [2]陕西省医疗器械质量检验院,陕西咸阳712046 [3]陕西省药品技术审评中心,陕西西安710065

出　　处：《粉末冶金工业》2021年第6期13-18,共6页Powder Metallurgy Industry

基　　金：陕西省重点研发计划资助项目(2020GY-305,2021GY-299)。

摘　　要：本研究采用超高速等离子旋转电极雾化(SS-PREP)方法制备出用于激光选区熔化成形(SLM)的15~53μm球形金属粉末,流动性为12.1 s/50g,松装密度为5.0 g/cm^(3),振实密度为5.31 g/cm^(3)。采用激光功率160 W、扫描速度1200 mm/s、打印间距0.07 mm、光斑直径0.06 mm和铺粉层厚0.03 mm的打印参数进行打印,并在热处理后对其力学性能、金瓷结合强度、翘曲变形、遗传毒性、细胞毒性和迟发型超敏反应等进行了研究分析和测试,结果表明:采用"超高速等离子旋转电极雾化+激光选区熔化成形+热处理(SS-PREP+SLM+HT)"的工艺路线制备的打印件可满足齿科材料的性能要求和临床使用要求。In this study,the spherical metal powder with the size of 15-53μm was prepared by supreme-speed plasma rotating electrode process(SS-PREP),which can be used for selective laser melting(SLM).The fluidity of the powder is 12.1 s/50 g,the apparent density is 5.0 g/cm^(3),and the tap density 5.31 g/cm^(3).Additive Manufacturing was carried out with laser power at 160 W,scanning speed at 1200 mm/s,printing distance at 0.07 mm,spot diameter at 0.06 mm and powder layer thickness at 0.03 mm.The mechanical properties,metal-ceramic bonding strength,warpage deformation,genotoxicity,cytotoxicity,and delayed-type hypersensitivity were tested and analyzed after heat treatment.It showes that AM parts produced by the route of"supreme-speed plasma rotating electrode process+laser selective melting+heat treatment(SS-PREP+SLM+HT)"could meet the requirements of denture performance and clinical use.

关 键 词：Co25Cr5W5Mo合金粉末 齿科 激光选区熔化成形 超高速等离子旋转电极雾化 

分 类 号：TG665[金属学及工艺—金属切削加工及机床] R783.1[医药卫生—口腔医学]