Results 21 to 30 of about 5,650 (217)

Keyhole Formation by Laser Drilling in Laser Powder Bed Fusion of Ti6Al4V Biomedical Alloy: Mesoscopic Computational Fluid Dynamics Simulation versus Mathematical Modelling Using Empirical Validation

Nanomaterials, 2021
In the laser powder bed fusion (LPBF) process, the operating conditions are essential in determining laser-induced keyhole regimes based on the thermal distribution.
Asif Ur Rehman, Muhammad Arif Mahmood, Fatih Pitir, Metin Uymaz Salamci, Andrei C. Popescu, Ion N. Mihailescu   +5 more
doaj   +1 more source

Sensitivity of laser powder bed fusion additive manufactured HAYNES230 to composition and print parameters

Journal of Materials Research and Technology, 2021
We developed a coupled CALPHAD and finite element-based computational model of the Laser Powder Bed Fusion (LPBF) process for HAYNES230, considering the feedstock composition and packing density.
Kasra Momeni
doaj   +1 more source

Investigation of the grain deformation to orthogonal cutting process of the textured Alloy 718 fabricated by laser powder bed fusion

, 2023
In the laser powder bed fusion (LPBF), the grains grow in preferential directions depending on the scanning strategies, which results in layer-by-layer builds of particular crystallographic textures.
Liao, Zhirong, Axinte, Dragos, Li, Lingshan, Chen, Hao, Yang, Yue   +4 more
core   +1 more source

Multi-laser scan strategies for enhancing creep performance in LPBF

, 2021
Laser Powder Bed Fusion (LPBF) enables complex structures to be manufactured, which is attractive to industries where augmented service performance can be achieved.
Clare, A.T., A.T. Clare, Ashcroft, I.A., Salomé Sanchez, C.J. Hyde, I.A. Ashcroft, Hyde, C.J., Sanchez, Salomé, Ravi, G.A., Ravi G.A.   +9 more
core   +1 more source

Additive manufacturing of Al2O3 ceramics with MgO/SiC contents by laser powder bed fusion process

Frontiers in Chemistry, 2023
Laser powder bed fusion is a laser-based additive manufacturing technique that uses a high-energy laser beam to interact directly with powder feedstock.
Asif Ur Rehman, Asif Ur Rehman, Asif Ur Rehman, Abid Ullah, Abid Ullah, Abid Ullah, Tingting Liu, Rashid Ur Rehman, Metin U. Salamci, Metin U. Salamci, Metin U. Salamci   +10 more
doaj   +1 more source

Optimization of Laser Powder Bed Fusion Processing Using a Combination of Melt Pool Modeling and Design of Experiment Approaches: Density Control

Journal of Manufacturing and Materials Processing, 2019
A simplified analytical model of the laser powder bed fusion (LPBF) process was used to develop a novel density prediction approach that can be adapted for any given powder feedstock and LPBF system.
Morgan Letenneur, Alena Kreitcberg, Vladimir Brailovski   +2 more
doaj   +1 more source

Diode area melting of Ti6Al4V using 808 nm laser sources and variable multi-beam profiles

Materials & Design, 2022
This paper presents an alternative to traditional laser powder bed fusion (LPBF), using an efficient, highly scalable multi-laser additive manufacturing methodology known as Diode Area Melting (DAM).
Mohammed Alsaddah, Ashfaq Khan, Kristian Groom, Kamran Mumtaz   +3 more
doaj   +1 more source

Improving Build Quality in Laser Powder Bed Fusion Using High Dynamic Range Imaging and Model-Based Reinforcement Learning

IEEE Access, 2021
In laser-based additive manufacturing (AM) of metal parts from powder bed, information about actual part quality obtained during build is essential for cost-efficient production and high product quality.
Christian Knaak, Lukas Masseling, Emil Duong, Peter Abels, Arnold Gillner   +4 more
doaj   +1 more source

Laser Powder Bed Fusion of Chromium Bronze Using Recycled Powder

, 2021
Laser powder bed fusion (LPBF) of Cu-0.5Cr was carried out using recycled powder taken out from the LPBF machine after previous printing. Various volumetric defects characterized the powder wherein particle size distribution was the same as virgin powder.
Ivan A. Pelevin, Alexander A. Gromov, Stanislav V. Chernyshikhin, Alexander S. Shinkaryov, Maxim A. Burmistrov, Dmitriy Yu. Ozherelkov, Anton Yu. Nalivaiko   +6 more
core   +1 more source

Operating limits for beam melting of glass materials [PDF]

MATEC Web of Conferences, 2019
Laser-based Additive Manufacturing (AM) processes for the use of metals out of the powder bed have been investigated profusely and are prevalent in industry.
Eichler Fabian, Skupin Marco, Katharina Thurn Laura, Kasch Susanne, Schmidt Thomas   +4 more
doaj   +1 more source