Microstructures and mechanical properties of A356 (AlSi7Mg0.3) aluminum alloy fabricated by selective laser melting

2016 ◽  
Vol 89 ◽  
pp. 1294-1301 ◽  
Author(s):  
Takahiro Kimura ◽  
Takayuki Nakamoto
2016 ◽  
Vol 43 (4) ◽  
pp. 0403002 ◽  
Author(s):  
钱德宇 Qian Deyu ◽  
陈长军 Chen Changjun ◽  
张敏 Zhang Min ◽  
王晓南 Wang Xiaonan ◽  
敬和民 Jing Hemin

Materials ◽  
2018 ◽  
Vol 11 (12) ◽  
pp. 2354 ◽  
Author(s):  
Bin Liu ◽  
Zezhou Kuai ◽  
Zhonghua Li ◽  
Jianbin Tong ◽  
Peikang Bai ◽  
...  

Multi-laser beam selective laser melting (SLM) technology based on a powder bed has been used to manufacture AlSi10Mg samples. The AlSi10Mg alloy was used as research material to systematically study the performance consistency of both the laser overlap areas and the isolated areas of the multi-laser beam SLM manufactured parts. The microstructures and mechanical properties of all isolated and overlap processing areas were compared under optimized process parameters. It was discovered that there is a raised platform at the junction of the overlap areas and the isolated areas of the multi-laser SLM samples. The roughness is significantly reduced after two scans. However, the surface roughness of the samples is highest after four scans. As the number of laser scans increases, the relative density of the overlap areas of the samples improves, and there is no significant change in hardness. The tensile properties of the tensile samples are poor when the overlap area width is 0, 0.1, or 0.2 mm. When the widths of the overlap areas are equal to or greater than 0.3 mm, there is no significant difference in the tensile strength between the overlap and the isolated areas.


2020 ◽  
Vol 22 (7) ◽  
pp. 1901356
Author(s):  
Zezhou Kuai ◽  
Zhonghua Li ◽  
Peikang Bai ◽  
Yunfei Nie ◽  
Wenpeng Liu ◽  
...  

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