Nondestructive Characterization of Laser Powder Bed Fusion Components Using High-Frequency Phased Array Ultrasonic Testing

2021 ◽  
Author(s):  
Farhang Honarvar ◽  
Sagar Patel ◽  
Mihaela Vlasea ◽  
Hossein Amini ◽  
Ahmad Varvani-Farahani
Keyword(s):  
High Frequency ◽  
Ultrasonic Testing ◽  
Phased Array ◽  
Powder Bed Fusion ◽  
Laser Powder Bed Fusion ◽  
Powder Bed ◽  
Nondestructive Characterization

scholarly journals Nondestructive characterization of laser powder bed fusion parts with neutron Bragg edge imaging

2021 ◽  
Vol 39 ◽  
pp. 101848
Author(s):  
Matteo Busi ◽  
Nikola Kalentics ◽  
Manuel Morgano ◽  
Seth Griffiths ◽  
Anton S. Tremsin ◽  
...  
Keyword(s):  
Powder Bed Fusion ◽  
Laser Powder Bed Fusion ◽  
Powder Bed ◽  
Nondestructive Characterization

Characterization of channels made by laser powder bed fusion and binder jetting using X-ray CT and image analysis

2020 ◽  
Vol 36 ◽  
pp. 101445
Author(s):  
T. Dahmen ◽  
C.G. Klingaa ◽  
S. Baier-Stegmaier ◽  
A. Lapina ◽  
D.B. Pedersen ◽  
...  
Keyword(s):  
Image Analysis ◽  
Powder Bed Fusion ◽  
Laser Powder Bed Fusion ◽  
Powder Bed ◽  
X Ray ◽  
Binder Jetting

scholarly journals Characterization of additively manufactured AlSilOMg cubes with different porosities

2021 ◽  
Vol 121 (4) ◽  
Author(s):  
C. Taute ◽  
H. Möller ◽  
A. du Plessis ◽  
M. Tshibalanganda ◽  
M. Leary
Keyword(s):  
Surface Roughness ◽  
Additive Manufacturing ◽  
Structural Integrity ◽  
Lead Times ◽  
Powder Bed Fusion ◽  
Laser Powder Bed Fusion ◽  
Powder Bed ◽  
Sample Characteristics

SYNOPSIS Additive manufacturing can be used to produce complex and custom geometries, consolidating different parts into one, which in turn reduces the required number of assemblies and allows distributed manufacturing with short lead times. Defects, such as porosity and surface roughness, associated with parts manufactured by laser powder bed fusion, can severely limit industrial application. The effect these defects have on corrosion and hence long-term structural integrity must also be taken into consideration. The aim of this paper is to report on the characterization of porosity in samples produced by laser powder bed fusion, with the differences in porosity induced by changes in the process parameters. The alloy used in this investigation is AlSi10Mg, which is widely used in the aerospace and automotive industries. The sample characteristics, obtained by X-ray tomography, are reported. The design and production of additively manufactured parts can be improved when these defects are better understood. Keywords: additive manufacturing, L-PBF, AlSi10Mg, porosity, surface roughness, density.

scholarly journals Characterization of AISI 304L stainless steel powder recycled in the laser powder-bed fusion process

2020 ◽  
Vol 32 ◽  
pp. 100981 ◽  
Author(s):  
Austin T. Sutton ◽  
Caitlin S. Kriewall ◽  
Sreekar Karnati ◽  
Ming C. Leu ◽  
Joseph W. Newkirk
Keyword(s):  
Stainless Steel ◽  
Steel Powder ◽  
Stainless Steel Powder ◽  
304L Stainless Steel ◽  
Powder Bed Fusion ◽  
Laser Powder Bed Fusion ◽  
Aisi 304L ◽  
Powder Bed ◽  
Aisi 304L Stainless Steel
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