Results 11 to 20 of about 5,891 (263)
Vision detection and feature extraction of molten pool behavior in powder laser cladding
Cailiao gongcheng, 2023 Molten pool monitoring is the basis of forming process optimization, playing a pivotal role in improving the formation quality. A machine vision monitoring system was set up for the laser cladding process.
DONG Fangyu +4 more
doaj +1 more source
Study on the Molten Pool Fluid Behavior of PAW-Cable-Type Seven-Wire GMAW Hybrid Welding
Crystals, 2022 Plasma arc welding (PAW)-cable-type seven-wire GMAW (gas metal arc welding) hybrid welding is known as a high-efficiency welding combining plasma arc, GMAW arc and cable-type welding wire. In this study, numerical simulation via Fluent of the molten pool
Chao Zhang, Qingxian Hu, Juan Pu, Hao Wu
doaj +1 more source
QUARTERLY JOURNAL OF THE JAPAN WELDING SOCIETY, 1986 A mathematical model of the weld pool, where the heat input from arc is situated on the molten pool surface, has been developed to discuss the influence of weld pool configuration on the heat flow in arc welding.The numerical model, based on the heat flow equation in the quasi-stationary state and the surface tensional balance equation for the molten ...
Nishiguchi, Kimiyuki +3 more
openaire +3 more sources
Mesoscopic simulation of overlapping behavior in laser powder bed additive manufacturing
Materials Research Express, 2021 The prediction of the flow behavior of Metal micro-molten pool is prerequisite for high-quality Laser Powder Bed Fusion (L-PBF). In this study, mesoscopic scale numerical simulation modelling for L-PBF process was used to help understand the melting ...
Pan Lu +5 more
doaj +1 more source
Applied Sciences, 2022 This research proposes an analytical method for the prediction of molten pool size in laser-based powder bed fusion (LPBF) additive manufacturing with the consideration of process conditions-dependent absorptivity. Under different process conditions, the
Wenjia Wang +3 more
doaj +1 more source
Experimental Study on Stratification Morphology of the Molten Pool During Severe Accident
Frontiers in Energy Research, 2021 Stratification morphology of a molten pool under severe reactor accident was investigated by the CESEF experimental facility. The experimental scale was 5,000 g, the atomic ratio of U/Zr was 1.5, the content of stainless steel was 10%, and the oxidation ...
Yang Li +5 more
doaj +1 more source
Grain selection and growth orientation of prior -β phase for Ti-6-4 during additive manufacturing : insights from a modeling perspective [PDF]
China Foundry, 2021 The microstructure of Ti-6-4 components produced by additive manufacturing suffers from the coarse and elongated prior-β grain, which leads to a decrease of the tensile behavior and the occurrence of anisotropy.
Wei-zhao Sun, Fei-hu Shan, Nan-fu Zong
doaj +1 more source
Journal of Materials Research and Technology, 2023 Investigating the surface morphology and microstructure of laser powder bed fusion (L-PBF) in solidification and optimizing process parameters is crucial for improving the accuracy and performance of cladding parts of GH3536 superalloy.
Dong Liu +4 more
doaj +1 more source
Laser Polishing Die Steel Assisted by Steady Magnetic Field
Micromachines, 2022 To improve the surface roughness of SKD61 die steel and reduce the secondary overflow of the molten pool, a steady magnetic field-assisted laser polishing method is proposed to study the effect of steady magnetic field on the surface morphology and melt ...
Zhenyu Zhao +4 more
doaj +1 more source
Effect of reverse-polarity hot wire on the tandem arc welding process
Engineering Science and Technology, an International Journal, 2022 A novel three-dimensional two-step numerical model was developed and analyzed for a tandem process with a reverse-polarity hot wire. Magneto-hydrodynamic analysis was conducted and the free surface of the molten pool was tracked to investigate the arc ...
Jin-young Kim +2 more
doaj +1 more source