Fabrication of Co-Cr-Mo endoprosthetic ankle devices by means of Selective Laser Melting (SLM)
Fabrication of Co-Cr-Mo endoprosthetic ankle devices by means of Selective Laser Melting (SLM)
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DOI：
10.1016/j.matdes.2016.05.083
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发表时间：
2016-09-15
影响因子：
8.4
通讯作者：
Ascari, A.
中科院分区：
文献类型：
--
作者：
Liverani, E.;Fortunato, A.;Ascari, A.
本文介绍了一项利用SLM制造钴铬钼人工踝关节假体的研究，包括工艺表征和运动学考虑。首先对具有简单几何形状的样品进行工艺优化，以使用Co-Cr-Mo粉末最大化密度和机械强度。其中，诸如激光扫描速度、激光功率和扫描策略的参数是变化的。进行机械测试和微观结构分析，以确定制造具有可忽略的微观结构缺陷的近全密度假体的工艺参数窗口。然后，基于医学成像和生物力学建模制造假体踝关节，并进行运动学测试，以确认其功能完整性和性能。(C)2016爱思唯尔有限公司版权所有
A study of Cobalt-Chromium-Molybdenum endoprosthetic ankle implant fabrication by means of SLM is presented, including process characterization and kinematic considerations. Process optimization is first performed on samples with simple geometry to maximize density and mechanical strength using Co-Cr-Mo powders. Parameters such as laser scanning velocity, laser power and scanning strategy are varied, amongst others. Mechanical tests and microstructural analyses are performed to define process parameter windows for fabrication of near full density prostheses with negligible microstructural defects. Prosthetic ankles, based on medical imaging and biomechanical modeling, are then manufactured and kinematically tested to confirm their functional integrity and performance. (C) 2016 Elsevier Ltd. All rights reserved.