骨科用增材制造钛晶格结构的形状和尺寸精度研究

IF 1.3 Q3 ENGINEERING, MECHANICAL

PERIODICA POLYTECHNICA-MECHANICAL ENGINEERING Pub Date : 2022-09-20 DOI:10.3311/ppme.20382

Rashwan Alkentar, T. Mankovits

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引用次数: 2

摘要

本文研究了设计晶格结构与3d打印晶格结构之间的偏差。利用ANSYS软件中的spacecclaim应用程序设计了三种类型的点阵结构，然后通过EOS M 290 3D打印机使用直接金属激光烧结(DMLS)进行了制造。考虑到矫形应用，所有组织样品均选用23级Ti6Al4V合金作为材料。在体积、质量和孔隙度上进行了彻底的比较，以有效地绘制设计版本和印刷版本之间可能存在的偏差。在研究过程中，讨论了3D打印过程中的形状精度。随着单晶胞形状的复杂性增加，打印过程的精度会降低。XY平面的尺寸精度高于Z平面的尺寸精度。在3D打印过程中，简单的单细胞形状被证明是更准确的。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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A Study on the Shape and Dimensional Accuracy of Additively Manufactured Titanium Lattice Structures for Orthopedic Purposes

The deviation between the designed lattice structures and the 3D-printed ones has been studied in this research. Three types of lattice structures were designed using the SpaceClaim application in the ANSYS software and then fabricated using Direct Metal Laser Sintering (DMLS) via EOS M 290 3D printer. Considering the orthopedic application, Ti6Al4V alloy of grade 23 was selected as a material for all samples of the structures. A thorough comparison was done on the volume, mass, and porosity to effectively map the possible deviations between the designed and the printed version. The shape accuracy of the 3D printing process was discussed during the study. As the complexity of the shape of the unit cell increases, the accuracy of the printing process becomes lower. Dimensional accuracy in the XY plane is higher than accuracy in the Z plane. Simple unit cell shape was proven to be more accurate in the 3D printing process.

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来源期刊

PERIODICA POLYTECHNICA-MECHANICAL ENGINEERING ENGINEERING, MECHANICAL-

CiteScore

2.80

自引率

7.70%

发文量

审稿时长

20 weeks

期刊介绍： Periodica Polytechnica is a publisher of the Budapest University of Technology and Economics. It publishes seven international journals (Architecture, Chemical Engineering, Civil Engineering, Electrical Engineering, Mechanical Engineering, Social and Management Sciences, Transportation Engineering). The journals have free electronic versions.