Results 31 to 40 of about 16,879 (308)

Additive Manufacturing of Hot‐Work Tool Steel by In Situ Alloying Using Laser Powder Bed Fusion and Directed Energy Deposition—Strategies to Improve Chemical Homogeneity [PDF]

steel research international, EarlyView.
To support future alloy development a powder mixture is processed by laser additive manufacturing. The powder mixture containing Mo‐ and W‐rich tracers is processed by powder bed fusion using single and double laser exposure and by directed energy deposition which provides drastically enlarged melt pools.
Felix Großwendt, Sebastian Weber, Jonathan Lentz   +2 more
openalex   +2 more sources

MECHANICAL PROPERTIES OF HONEYCOMB STRUCTURED ZR-BASED BULK METALLIC GLASS SPECIMENS FABRICATED BY LASER POWDER BED FUSION

South African Journal of Industrial Engineering, 2019
Laser powder bed fusion of bulk metallic glasses offers great potential to overcome the existing restrictions of the geometrical size and complexity of bulk metallic glasses in conventional manufacturing routes due to high cooling rates during laser ...
Wegner, J. , Frey, M. , Stiglmair, P. , Kleszczynski, S. , Witt, G. , Busch, R.   +5 more
doaj   +1 more source

Revealing relationships between porosity, microstructure and mechanical properties of laser powder bed fusion 316L stainless steel through heat treatment

Materials & Design, 2020
The understanding of relationships between processing, microstructure and mechanical properties in laser powder bed fusion is currently incomplete. Microstructure-property relations in 316L stainless steel are revealed in this study using isothermal heat
Tobias Ronneberg, Catrin M. Davies, Paul A. Hooper   +2 more
doaj   +1 more source

Data on a computationally efficient approximation of part-powder conduction as surface free convection in powder bed fusion process modelling

Data in Brief, 2019
This article is related to research article entitled “Resolution, energy and time dependency on layer scaling in finite element modelling of laser beam powder bed fusion additive manufacturing” [1].
Wenyou Zhang, Mingming Tong, Noel M. Harrison   +2 more
doaj   +1 more source

In Situ Monitoring Systems of The SLM Process: On the Need to Develop Machine Learning Models for Data Processing

Crystals, 2020
In recent years, technological advancements have led to the industrialization of the laser powder bed fusion process. Despite all of the advancements, quality assurance, reliability, and lack of repeatability of the laser powder bed fusion process still ...
Pinku Yadav, Olivier Rigo, Corinne Arvieu, Emilie Le Guen, Eric Lacoste   +4 more
doaj   +1 more source

Research Progress on Surface Polishing Technology of Powder Bed Fusion Titanium Alloy [PDF]

Cailiao Baohu
Powder bed fusion titanium alloys， as an important metallic material， are widely used in aerospace， medical devices and automotive industries.However， due to their unique material properties and processing methods， surface quality and performance ...
ZHOU Di, WU Songquan, LI Ziyang, LIU Lei, YANG Yi, WANG Hao, HUANG Aijun
doaj   +1 more source

Ensemble learning based defect detection of laser sintering

IET Optoelectronics, 2023
In rapid development, Selective Laser Sintering (SLS) creates prototypes by processing industrial materials, for example, polymers. Such materials are usually in powder form and fused by a laser beam.
Junyi Xin, Muhammad Faheem, Qasim Umer, Muhammad Tausif, M. Waqar Ashraf   +4 more
doaj   +1 more source

Additive manufacturing technology for porous metal implant applications and triple minimal surface structures: A review

Bioactive Materials, 2019
Recently, the fabrication methods of orthopedic implants and devices have been greatly developed. Additive manufacturing technology allows the production of complex structures with bio-mimicry features, and has the potential to overcome the limitations ...
Li Yuan, Songlin Ding, Cuie Wen
doaj   +1 more source

Physics-Based Predictive Model of Lack-of-Fusion Porosity in Laser Powder Bed Fusion Considering Cap Area

Crystals, 2021
This work proposed a computationally efficient analytical modeling strategy to calculate the product porosity in laser powder bed fusion (LPBF) induced by a lack-of-fusion defect, with the consideration of cap area in solidified molten pools, influence ...
Wenjia Wang, Steven Y. Liang
doaj   +1 more source

Experimental Analysis and Spatial Component Impact of the Inert Cross Flow in Open-Architecture Laser Powder Bed Fusion

Journal of Manufacturing and Materials Processing, 2023
Laser-based powder bed fusion is an additive manufacturing process in which a high-power laser melts a thin layer of metal powder layer by layer to yield a three-dimensional object.
Magnus Bolt Kjer, Zhihao Pan, Venkata Karthik Nadimpalli, David Bue Pedersen   +3 more
doaj   +1 more source