Filling of surface pores of aluminum foam with polyamide by selective laser melting for improvement in mechanical properties

2016 ◽  
Vol 237 ◽  
pp. 402-408 ◽  
Author(s):  
Ryo Matsumoto ◽  
Shigehiro Kanatani ◽  
Hiroshi Utsunomiya
Keyword(s):  
Mechanical Properties ◽  
Selective Laser Melting ◽  
Aluminum Foam ◽  
Laser Melting ◽  
Surface Pores

Filling of Surface Pores on Aluminum Foam with Aluminum Powder by Selective Laser Melting

2014 ◽  
Vol 622-623 ◽  
pp. 861-867 ◽  
Author(s):  
Shigehiro Kanatani ◽  
Ryo Matsumoto ◽  
Hiroshi Utsunomiya
Keyword(s):  
Surface Layer ◽  
Laser Irradiation ◽  
Selective Laser Melting ◽  
Aluminum Powder ◽  
Aluminum Foam ◽  
Scanning Speed ◽  
Cell Type ◽  
Laser Melting ◽  
Closed Cell ◽  
Surface Pores

To improve mechanical properties of a closed-cell type aluminum foam, the surface pores are filled with aluminum powder by selective laser melting (SLM). The relationship between the laser irradiation conditions and solidification characteristics of aluminum powder is investigated with one-line laser irradiation on the aluminum powder with a thickness of 5 mm. The aluminum powder is continuously melted and solidified with laser spot diameter of 0.6 mm and scanning speed of 10–20 mm/s. According to the successful melting and solidification conditions, the SLM is applied to the surface pores of a closed-cell type aluminum foam supplied with aluminum powder. The supplied aluminum powder is confirmed to be successfully melted and welded to the aluminum foam. As the result, the aluminum foam with nonporous surface layer (sandwich structure) is fabricated by the SLM with aluminum powder. The compressive behavior of the fabricated aluminum foam with nonporous surface layer is investigated.

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.

Fabrication and mechanical properties of Al–Si-based alloys by selective laser melting process

2021 ◽  
pp. 1-8
Author(s):  
Yeong Seong Eom ◽  
Kyung Tae Kim ◽  
Dong Won Kim ◽  
Soo ho Jung ◽  
Jung Woo Nam ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Selective Laser Melting ◽  
Melting Process ◽  
Laser Melting ◽  
Selective Laser Melting Process
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