上海交通大学学报

上海交通大学学报（自然版） ›› 2016, Vol. 50 ›› Issue (02): 165-168.

• 一般工业技术 •    下一篇

多孔钛合金支架结构设计及其抗压强度分析

王春晓，李祥，罗云   

  1. （上海交通大学 机械与动力工程学院, 上海 200240）
  • 收稿日期:2014-12-31 出版日期:2016-02-29 发布日期:2016-02-29
  • 基金资助:
    国家自然科学基金项目（51475293）资助

Design and Strength Analysis of Porous Titanium Scaffold

WANG Chunxiao,LI Xiang,LUO Yun   

  1. （School of Mechanical Engineering, Shanghai Jiaotong University, Shanghai 200240, China）
  • Received:2014-12-31 Online:2016-02-29 Published:2016-02-29

摘要： 摘要： 设计了5种不同孔隙结构的钛合金支架模型，利用金属3D打印技术完成了多孔钛合金支架实物模型的制造，并对设计和制造的多孔钛合金支架的微观孔隙特征及力学性能进行观测.结果表明：多孔钛合金支架微观结构的设计特征与制造特性存在一定的差异，但在可控范围以内；在相近孔隙率和相同支杆截面尺寸的条件下，不同单元体形成的三维孔隙结构对支架抗压强度的影响十分显著；倒V型结构支架的抗压强度与支杆的夹角和长度密切相关，其理论分析结果与实验结果一致.

关键词: 多孔钛合金, 支架, 结构设计, 孔隙率, 抗压强度

Abstract: Abstract： Five Ti alloy scaffold models with different pore structures were designed and fabricated using the 3D printing technology. The micro porous feature and strength of the scaffold model were observed and tested. The results indicate that there is a certain error between the microstructure design feature and the fabrication feature, but within a controllable range. Under the condition of near porosity and the same pole sectional size, the threedimensional structure with different unit cells has a great impact on scaffold strength. The Vstructured model scaffold strength is closely related to pole intersection angle and pole length. The result of the theoretical analysis is in accordance with the experimental result.

Key words: porous titanium, scaffold, structure design, porosity, compressive strength

中图分类号: