Results 31 to 40 of about 2,117,850 (329)
Effect of laser-welding parameters on the heat input and weld-bead profile [PDF]
, 2005 Laser butt-welding of medium carbon steel was investigated using CW 1.5 kW CO2 laser. The effect of laser power (1.2 - 1.43 kW), welding speed (30 - 70 cm/min) and focal point position (-2.5 - 0 mm) on the heat input and the weld-bead geometry (i.e ...
A.G. Olabi +13 more
core +1 more source
Laser Welding under Vacuum: A Review
Applied Sciences, 2017 Laser welding has been widely used in various industry fields. In order to further alter and broaden its applicability, a novel technology of laser welding under vacuum is introduced.
Meng Jiang, Wang Tao, Yanbin Chen
doaj +1 more source
Materials & Design, 2022 Post-build rolling can mitigate residual stress (RS) and distortion in large-scale components built by wire arc additive manufacturing (WAAM). In this study, based on numerical simulations that considered both WAAM deposition and vertical rolling, the ...
Valeriy Gornyakov +3 more
doaj
CO2 laser beam welding of AM60 magnesium-based alloy [PDF]
, 2010 The authors are grateful to FONDERIE MESSIER HONSEL group that provided the as-cast magnesium alloy workpieces. The authors would like also to acknowledge the technical support of Dr.
BARRALLIER, Laurent +4 more
core +4 more sources
Cross-Section Bead Image Prediction in Laser Keyhole Welding of AISI 1020 Steel Using Deep Learning Architectures [PDF]
, 2020 A deep learning model was applied for predicting a cross-sectional bead image from laser welding process parameters. The proposed model consists of two successive generators.
Ki, Hyungson, Oh, Sehyeok
core +1 more source
Photonics, 2023 The automobile industry puts forward higher requirements for the design and manufacture of steel pistons. However, the welding of 42CrMo steel pistons still has unsolved technical problems, especially welding defects that cannot be directly detected ...
Yan Zhang +6 more
doaj +1 more source
Revealing the effects of laser beam shaping on melt pool behaviour in conduction-mode laser melting [PDF]
Journal of Materials Research and Technology, Volume 27, 2023,
Pages 3955-3967, 2023 Laser beam shaping offers remarkable possibilities to control and optimise process stability and tailor material properties and structure in laser-based welding and additive manufacturing. However, little is known about the influence of laser beam shaping on the complex melt-pool behaviour, solidified melt-track bead profile and microstructural grain ...
arxiv +1 more source
Control of welding residual stress for dissimilar laser welded materials [PDF]
, 2008 The most common problem of welding dissimilar metals (DMWs) with respect to residual stresses is the differences in the coefficient of thermal expansion and heat conductivity of the two welded metals.
A.G. Olabi +15 more
core +1 more source
, 2012 Metal joining by means of components heating to the melting temperatures was known thousands years ago in old age Greece. Heat sources have been developed from forging furnace to modern methods of plasma arc welding, electric resistance welding, oxy-fuel welding or laser welding. Laser, as a source of intensive light beam, starts to be implemented into
Hana Šebestová, Hana Chmelickova
openaire +3 more sources
Time-resolved Absorptance and Melt Pool Dynamics during Intense Laser Irradiation of Metal [PDF]
Phys. Rev. Applied 10, 044061 (2018), 2018 High irradiance lasers incident on metal surfaces create a complex, dynamic process through which the metal can rapidly change from highly reflective to strongly absorbing. Absolute knowledge of this process underpins important industrial laser processes like laser welding, cutting, and metal additive manufacturing.
arxiv +1 more source