Progress and perspectives of in-situ optical monitoring in laser beam welding: Sensing, characterization and modeling
Laser beam welding manufacturing (LBW), being a promising joining technology with
superior capabilities of high-precision, good-flexibility and deep penetration, has attracted …
superior capabilities of high-precision, good-flexibility and deep penetration, has attracted …
In situ monitoring of selective laser melting of zinc powder via infrared imaging of the process plume
Despite continuous technological improvements in metal additive manufacturing (AM)
systems, process stability is still affected by several possible sources of defects especially in …
systems, process stability is still affected by several possible sources of defects especially in …
A three-dimensional sharp interface model for self-consistent keyhole and weld pool dynamics in deep penetration laser welding
S Pang, L Chen, J Zhou, Y Yin… - Journal of Physics D …, 2010 - iopscience.iop.org
A three-dimensional sharp interface model is proposed to investigate the self-consistent
keyhole and weld pool dynamics in deep penetration laser welding. The coupling of three …
keyhole and weld pool dynamics in deep penetration laser welding. The coupling of three …
3D transient multiphase model for keyhole, vapor plume, and weld pool dynamics in laser welding including the ambient pressure effect
The physical process of deep penetration laser welding involves complex, self-consistent
multiphase keyhole, metallic vapor plume, and weld pool dynamics. Currently, efforts are still …
multiphase keyhole, metallic vapor plume, and weld pool dynamics. Currently, efforts are still …
Measurement of pulsed laser welding penetration based on keyhole dynamics and deep learning approach
The keyhole instability is a key concern in laser deep-penetration welding of high reflectivity
materials, potentially impacting the penetration status and weld quality. Monitoring and …
materials, potentially impacting the penetration status and weld quality. Monitoring and …
Investigation of keyhole plume and molten pool based on a three-dimensional dynamic model with sharp interface formulation
Laser keyhole welding is a complicated multi-phases, multi-physics process, especially
when assisting gases are involved. A three-dimensional transient model is developed to …
when assisting gases are involved. A three-dimensional transient model is developed to …
Predictive model for porosity in powder-bed fusion additive manufacturing at high beam energy regime
Process consistency and control are bottleneck issues to wider insertion of powder-bed
fusion additive manufacturing in the industrial shopfloor. Of particular interest is the porosity …
fusion additive manufacturing in the industrial shopfloor. Of particular interest is the porosity …
Selective laser melting of pure Zn with high density for biodegradable implant manufacturing
AG Demir, L Monguzzi, B Previtali - Additive Manufacturing, 2017 - Elsevier
Zinc and its alloys constitute the new generation of biodegradable metallic materials for
biomedical implants. Biodegradable implants of Zn, customized for the specific patient can …
biomedical implants. Biodegradable implants of Zn, customized for the specific patient can …
High speed imaging technique Part 2–High speed imaging of power beam welding phenomena
S Tsukamoto - Science and Technology of Welding and …, 2011 - journals.sagepub.com
The high speed imaging technique is an attractive tool to elucidate welding phenomena. In
this paper, applications of this technique are reviewed in order to understand the power …
this paper, applications of this technique are reviewed in order to understand the power …
Dynamics of vapor plume in transient keyhole during laser welding of stainless steel: Local evaporation, plume swing and gas entrapment into porosity
In order to better understand the local evaporation phenomena of keyhole wall, vapor plume
swing above the keyhole and ambient gas entrapment into the porosity defects, the 3D time …
swing above the keyhole and ambient gas entrapment into the porosity defects, the 3D time …