scholarly journals Mechanical Properties of Optimized Diamond Lattice Structure for Bone Scaffolds Fabricated via Selective Laser Melting

Materials ◽  
2018 ◽  
Vol 11 (3) ◽  
pp. 374 ◽  
Author(s):  
Fei Liu ◽  
David Zhang ◽  
Peng Zhang ◽  
Miao Zhao ◽  
Salman Jafar
Keyword(s):  
Mechanical Properties ◽  
Selective Laser Melting ◽  
Lattice Structure ◽  
Diamond Lattice ◽  
Laser Melting ◽  
Bone Scaffolds

scholarly journals Investigation on Morphology and Mechanical Properties of Rod Units in Lattice Structures Fabricated by Selective Laser Melting

Materials ◽  
2021 ◽  
Vol 14 (14) ◽  
pp. 3994
Author(s):  
Chenchen Jing ◽  
Yanyan Zhu ◽  
Jie Wang ◽  
Feifan Wang ◽  
Jiping Lu ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Selective Laser Melting ◽  
Inclination Angle ◽  
Lattice Structure ◽  
Load Capacity ◽  
Lattice Structures ◽  
Laser Melting ◽  
Profile Error ◽  
Cross Sectional ◽  
Morphology And Mechanical Properties

Selective laser melting (SLM) fabrication of lattice structures has attracted considerable interest due to its many immanent advantages, such as high specific strength. A wide variety of lattice structures have been designed and fabricated. However, as a vital prerequisite for design optimization, a clear relation between the process constraint of SLM and the apparent properties of the fabricated lattice structure has received much less attention. Therefore, this work systematically investigates the characterization and preformation of rod units, which are the basic components of lattice structures, so as to evaluate the SLM manufacturability of lattice structures. A series of rod units with different inclination angles and diameters were fabricated by SLM. Their morphology and mechanical properties were measured by scanning electron microscope observation and a tensile test, respectively. The inclination angle was found to have significant effects on profile error and little effect on mechanical properties. The higher the inclination angle, the larger the profile error. The characteristic diameter had no significant correlation with profile errors and mechanical properties. Based on systematic studies, a formula is proposed to evaluate the cross-sectional area of the fabricated rod units and further estimate their load capacity. This has important implications for optimizing the design of lattice structures fabricated by SLM.

scholarly journals Effect of Zr content on crack formation and mechanical properties of IN738LC processed by selective laser melting

2021 ◽  
Vol 31 (5) ◽  
pp. 1350-1362
Author(s):  
Yong HU ◽  
Xiao-kang YANG ◽  
Wen-jiang KANG ◽  
Yu-tian DING ◽  
Jia-yu XU ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Selective Laser Melting ◽  
Crack Formation ◽  
Laser Melting

scholarly journals Directionally-Dependent Mechanical Properties of Ti6Al4V Manufactured by Electron Beam Melting (EBM) and Selective Laser Melting (SLM)

Materials ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 3603
Author(s):  
Tim Pasang ◽  
Benny Tavlovich ◽  
Omry Yannay ◽  
Ben Jakson ◽  
Mike Fry ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Surface Roughness ◽  
Tensile Strength ◽  
Electron Beam ◽  
Additive Manufacturing ◽  
Selective Laser Melting ◽  
Electron Beam Melting ◽  
Rolling Direction ◽  
Laser Melting ◽  
Plate Rolling

An investigation of mechanical properties of Ti6Al4V produced by additive manufacturing (AM) in the as-printed condition have been conducted and compared with wrought alloys. The AM samples were built by Selective Laser Melting (SLM) and Electron Beam Melting (EBM) in 0°, 45° and 90°—relative to horizontal direction. Similarly, the wrought samples were also cut and tested in the same directions relative to the plate rolling direction. The microstructures of the samples were significantly different on all samples. α′ martensite was observed on the SLM, acicular α on EBM and combination of both on the wrought alloy. EBM samples had higher surface roughness (Ra) compared with both SLM and wrought alloy. SLM samples were comparatively harder than wrought alloy and EBM. Tensile strength of the wrought alloy was higher in all directions except for 45°, where SLM samples showed higher strength than both EBM and wrought alloy on that direction. The ductility of the wrought alloy was consistently higher than both SLM and EBM indicated by clear necking feature on the wrought alloy samples. Dimples were observed on all fracture surfaces.

Sign in / Sign up

Export Citation Format

Share Document