电子束选区熔化成形技术研究进展

发布时间：2018-01-20 16:10

本文关键词： 电子束选区熔化成形成形装备缺陷控制组织特性增材制造随形热处理生物多孔植入体　出处：《中国材料进展》2015年03期 　论文类型：期刊论文

【摘要】：电子束选区熔化成形技术(Selective Electron Beam Melting,SEBM),是20世纪90年代中期发展起来的一类新型增材制造技术,具有能量利用率高、无反射、功率密度高、扫描速度快、真空环境无污染、低残余应力等优点,特别适合活性、难熔、脆性金属材料的直接成形,在航空航天、生物医疗、汽车、模具等领域具有广阔的应用前景。10年来,作者团队主要开展SEBM成形钛合金的研究,合金包括TC4、TA7、Ti600、Ti Ta Nb Zr、Ti Al金属间化合物等;零件包括复杂薄壁、桁架/多孔及多孔/致密复合结构零件;并且搭建了从粉末制备、设备研发到技术服务的全产业链SEBM技术平台,通过科技成果转化成立了从事SEBM技术的专业化企业——西安赛隆金属材料有限责任公司。从成形装备、成形过程缺陷形成与控制、材料组织性能和主要应用4个方面,对国内外SEBM技术的发展现状进行了综述,最后对SEBM技术的发展前景进行了展望。
[Abstract]:Electron beam selective melting forming (EBF) technique for selective Electron Beam melting (SEBM). In the middle of 1990s, a new type of material increasing manufacturing technology was developed, which has the advantages of high energy utilization, no reflection, high power density, high scanning speed, no pollution in vacuum environment, low residual stress and so on. It is especially suitable for the direct forming of active, refractory and brittle metal materials, and has a broad application prospect in aerospace, biomedical, automobile, mould and other fields. The author's team is mainly engaged in the research of SEBM forming titanium alloy, including TC4Ta-TA7Ti600-Ti Ta NB Zr-Ti Al intermetallics and so on. The parts include complex thin-walled, truss / porous and porous / compact composite structure parts. And set up the whole industry chain SEBM technology platform from powder preparation, equipment research and development to technical service. Through the transformation of scientific and technological achievements, a professional enterprise engaged in SEBM technology, Xi'an Cylon Metal material Co., Ltd., was set up. From the forming equipment, the forming process defects were formed and controlled. The development status of SEBM technology at home and abroad is reviewed in four aspects of material structure, properties and main applications. Finally, the prospect of SEBM technology is prospected.
【作者单位】：西北有色金属研究院金属多孔材料国家重点实验室;
【基金】：科技部国际科技合作专项项目(2011DFA52590) 高技术发展计划项目(2013AA031103)
【分类号】：TG661
【正文快照】： 1前言增材制造技术(Additive Manufacturing Technology,AMT)或3D打印技术的前身是快速原型和快速制造技术。自1995年起,作者注意到以光固化成形技术(Ste-reolithography,SLA)和激光选区烧结技术(Selective La- ser Sintering,SLS)为代表的快速原型制造技术是一种先进的近净

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