Results 111 to 120 of about 5,650 (217)

The role of process parameters and printing position on meltpool variations in LPBF Hastelloy X: Insights into laser-plume interaction

Additive Manufacturing Letters
Meltpool dimensions play a pivotal role in defining the defects and microstructure state of Laser Powder Bed Fusion (LPBF) builds. Therefore, it is crucial to investigate variations in meltpool geometries under different process conditions. In this work,
Jian Tang, Rafal Wróbel, Pooriya Scheel, Willy Gaechter, Christian Leinenbach, Ehsan Hosseini   +5 more
doaj   +1 more source

Numerical and Experimental Studies of Laser Powder Bed Fusion Processes [PDF]

Additive Manufacturing (AM), commonly known as 3D printing, stands as a transformative technology poised to reshape the approaches to product design, development, and manufacturing.
Shaheen, Mohamad Yousef
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An Investigation into Metallic Powder Thermal Conductivity in Laser Powder Bed Fusion Additive Manufacturing

, 2018
This study investigates the thermal conductivity of metallic powder in laser powder-bed fusion (LPBF) additive manufacturing. The intent is to utilize a methodology combining laser flash testing, finite element (FE) heat transfer modeling, and an ...
Chou, Kevin, Zhang, Shanshan, Lane, Brandon, Whiting, Justin   +3 more
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Comparison of dimensional accuracy and tolerances of powder bed based and nozzle based additive manufacturing processes

, 2020
Additive manufacturing processes have the potential to produce near-net shaped complex final parts in various industries such as aerospace, medicine, or automotive.
Frank Brueckner, Christoph Leyens, Christian Grunert, López, Elena,, Riede, Mirko,, Mirko Riede, Leyens, Christoph,, Samira Gruber, Gruber, Samira,, Grunert, Christian,, Marquardt, Axel,, Elena López, Axel Marquardt, Brückner, Frank,   +13 more
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Development of high strength aluminum alloys for laser powder bed fusion

, 2022
DOTTORATODespite the widespread use of Laser Powder Bed Fusion (LPBF), only few high-strength Al alloys are suitable for this process due to the occurrence of hot cracks during solidification. In this thesis, strategies to design Al alloys processable by
BELELLI, FILIPPO
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Efficient Optimization of Magnetic Properties of Fe–4.5Si Alloy in Laser Powder Bed Fusion (LPBF)

International Journal of Precision Engineering and Manufacturing-Green Technology
Abstract Existing studies have successfully identified optimal process parameters to enhance relative density and mechanical properties. However, these optimizations often incur high experimental costs due to the need for repetitive experiments.
Byeong Uk Song, Joon Phil Choi, Pil-Ho Lee, Min-Kyo Jung, Dongwoon Shin, Taeho Ha, Ikjin Lee   +6 more
openaire   +1 more source

Material and Process Hybridisation for Implant Materials - Laser Powder Bed Fusion (LPBF) of Titanium Powders on In-mould Labelled Metallic Nonwovens in Injection Moulded Zirconia (CIM) Substrates

12851291The research aims not only at the hybridisation of metal and ceramic structures via an innovative textile interface, but also at the hybridisation of conventional and additive powder technologies.
Günther, Anne, Dudeck, Anna, Moritz, Tassilo, Stelzer, Sebastian, Mannschatz, Anne   +4 more
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Deformation twinning-induced dynamic recrystallization during laser powder bed fusion

, 2022
Nanotwin formation is observed during laser powder bed fusion (LPBF) of austenitic stainless steels fabricated with various process parameters. Transmission electron microscopy was employed to reveal the nature of such twins, which are formed due to the ...
Rivera-Díaz-del-Castillo, P.E.J., Zhang, C., Fu, H., San-Martín, D., Sabzi, H.E., Li, X.-H.   +5 more
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Correlative spatter and vapour depression dynamics during laser powder bed fusion of an Al-Fe-Zr alloy

International Journal of Extreme Manufacturing
Spatter during laser powder bed fusion (LPBF) can induce surface defects, impacting the fatigue performance of the fabricated components. Here, we reveal and explain the links between vapour depression shape and spatter dynamics during LPBF of an Al-Fe ...
Da Guo, Rubén Lambert-Garcia, Samy Hocine, Xianqiang Fan, Henry Greenhalgh, Ravi Shahani, Marta Majkut, Alexander Rack, Peter D Lee, Chu Lun Alex Leung   +9 more
doaj   +1 more source

HYBRID MULTI-LASER POWDER BED FUSION [PDF]

In Laser Powder Bed Fusion (LPBF) systems, both single fibre systems and multi-laser systems are currently at the forefront of industry and academic research. Among the multi-laser approaches, Diode Area Melting (DAM) stands out as a novel alternative to
CAGLAR, Halil Emre
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