基于选择性激光熔化制备多孔钛结构的设计及分析  

Design and analysis of manufacturing porous titanium structures based on selective laser melting

作　　者：戚留举 李子夫[1] 张春雨[1] 孙学通[1] 苏平[2] 

机构地区：[1]广州中国科学院先进技术研究所,广东广州511458 [2]广东工业大学机电工程学院,广东广州510006

出　　处：《机械》2014年第5期70-74,共5页Machinery

基　　金：基于3D打印技术的生物医用复杂多孔钛及其合金的研制(2013Z016)

摘　　要：通过设计和有限元分析,确定与骨头硬组织兼容的多孔钛参数,并采用选择性激光熔化技术制备多孔结构,为与骨头匹配的多孔结构的设计提供力学实验数据和理论参考依据。通过运用三维软件SolidWorks,设计截角八面体多孔结构,利用有限元分析软件ANSYS模拟应力、应变,确定能承受载荷的结构参数。通过分析确定与骨头力学性能匹配的截角八面体多孔结构的臂径为400μm,孔径为750~1000μm。定量改变模型的参数,多孔结构的实际弹性模量随孔隙率的提高而降低;棱径不变,多孔结构模型的最大应力随着理论孔隙率的增加而增大。The optimized bone-compatible porous Titanium structures parameters have been determined by design and finite element analysis. The truncated octaminx models were designed by SolidWorks, in order to get structure parameters using ansys software to simulate the stress and strain. Through the analysis to determine truncated octaminx of the arm diameter is 400 μm, porous diameter of 750 to 1000μm that bone-compatible. the quantitative change of the model parameters, the actual elastic modulus of porous structure is reducing with the increase of porosity; Edge diameter is constant, the maximum stress of the structure model is increasing with increase of the porosity with the theory.

关 键 词：选择性激光熔化 截角八面体 多孔钛 有限元分析 

分 类 号：TP391.77[自动化与计算机技术—计算机应用技术]