Zobrazeno 1 - 10
of 2 550
pro vyhledávání: '"melt-pool"'
Autor:
Yue Cheng, Takanobu Miyawaki, Wenyuan Wang, Naoki Takata, Asuka Suzuki, Makoto Kobashi, Masaki Kato
Publikováno v:
Journal of Materials Research and Technology, Vol 32, Iss , Pp 4048-4058 (2024)
The present study was undertaken to understand the effect of annealing on the microstructural features of the melt-pool structure and the associated multiscale mechanical properties of the Al–2.5%Fe–2%Cu alloy manufactured by laser powder bed fus
Externí odkaz:
https://doaj.org/article/e3d571dc41f847ebb427cf03be5d2008
Interaction of contour and hatch parameters on vertical surface roughness in laser powder bed fusion
Autor:
Tianyu Zhang, Lang Yuan
Publikováno v:
Journal of Materials Research and Technology, Vol 32, Iss , Pp 3390-3401 (2024)
In Laser Powder Bed Fusion (L-PBF), surface roughness is pivotal for controlling the mechanical and functional performances, as well as the geometrical accuracy of the final product. This study extensively investigated the interactions of hatch and c
Externí odkaz:
https://doaj.org/article/6ff6a736963f4ec6b002456dae7616f1
Publikováno v:
Journal of Materials Research and Technology, Vol 32, Iss , Pp 1127-1140 (2024)
Laser powder bed fusion (LPBF) enables the production of large and intricately shaped bulk metallic glasses (BMGs); however, the current strength of LPBF-fabricated BMGs is significantly lower than their cast counterparts due to defects generated dur
Externí odkaz:
https://doaj.org/article/dd0e0fdd8aa9434d978bf20c15bda260
Autor:
Nils Much, Magdalena Schreter-Fleischhacker, Peter Munch, Martin Kronbichler, Wolfgang A. Wall, Christoph Meier
Publikováno v:
Advanced Modeling and Simulation in Engineering Sciences, Vol 11, Iss 1, Pp 1-40 (2024)
Abstract Computational modeling of the melt pool dynamics in laser-based powder bed fusion metal additive manufacturing (PBF-LB/M) promises to shed light on fundamental mechanisms of defect generation. These processes are accompanied by rapid evapora
Externí odkaz:
https://doaj.org/article/0621431617724457939ad8015528d921
Autor:
Joni Reijonen
Publikováno v:
Additive Manufacturing Letters, Vol 11, Iss , Pp 100244- (2024)
Melt pool monitoring using co-axial photodiodes is increasingly used for online quality monitoring in PBF-LB AM. However, the fundamental correlations between different processing conditions and the co-axial photodiode signals are not well understood
Externí odkaz:
https://doaj.org/article/40fd76672b1c45718cac0e7b87f83351
Publikováno v:
Virtual and Physical Prototyping, Vol 19, Iss 1 (2024)
This study first proposes a physics-guided spatiotemporal graph. The melt pool temporal feature nodes and spatial feature nodes are extracted from melt pool images based on spatiotemporal correlations. These feature points are treated as graph nodes,
Externí odkaz:
https://doaj.org/article/69f0fa0983914853a21d3fea9dfd2254
Publikováno v:
Virtual and Physical Prototyping, Vol 19, Iss 1 (2024)
The wire arc additive manufacturing (WAAM) process often results in geometric inaccuracies in the produced struts, highlighting the need for in-situ monitoring. Industrial cameras struggle to capture accurate images due to interference from arc light
Externí odkaz:
https://doaj.org/article/114e21d4770940a9af1d8c2d4c18b154
Autor:
Xuekai Li, Wei Wang, Yihong Wu, Donghu Zhou, Huijun Kang, Enyu Guo, Jiehua Li, Zongning Chen, Yanjin Xu, Tongmin Wang
Publikováno v:
Ultrasonics Sonochemistry, Vol 111, Iss , Pp 107070- (2024)
Metal additive manufacturing (AM) is a disruptive technology that provides unprecedented design freedom and manufacturing flexibility for the forming of complex components. Despite its unparalleled advantages over traditional manufacturing methods, t
Externí odkaz:
https://doaj.org/article/8f578bf0186d42fea27970988256c0a0
Publikováno v:
Virtual and Physical Prototyping, Vol 19, Iss 1 (2024)
ABSTRACTA three-dimensional thermofluidic coupling transport model is proposed to investigate the influences of different spatial laser intensity profiles (SLIPs), including circular super-Gaussian profile (C-SGP), transverse elliptical Gaussian prof
Externí odkaz:
https://doaj.org/article/85a981836a294707b44be52d70aea294
Autor:
Erasmo Correa‐Gómez, Homero Castro‐Espinosa, Alberto Caballero‐Ruiz, Erika García‐López, Leopoldo Ruiz‐Huerta
Publikováno v:
Engineering Reports, Vol 6, Iss 11, Pp n/a-n/a (2024)
Abstract The laser powder bed fusion process for metals (LPBF‐M) results in the development of stochastic surface features that significantly influence the interactions between parts and their surrounding environment, as well as their mechanical pr
Externí odkaz:
https://doaj.org/article/5972c78fa7874225bf0dfed59f27efcd