Results 31 to 40 of about 12,463 (306)

Hot Deformability of Weld Metal

open access: yesJOURNAL OF THE JAPAN WELDING SOCIETY, 1973
In order to study the mechanism of hot cracking in aluminum alloys, the characteristics of brittle range existing behind the molten pool are investigated experimentally by using special tension executed soon after the welding. As to the characteristics of brittle range in weld metal, length, temperature range and minimum quantity of deformation ...
Ando, Kohei   +3 more
openaire   +3 more sources

Modelling of Friction Stir Welding [PDF]

open access: yes, 2004
This thesis investigates the modelling of friction stir welding (FSW). FSW is a relatively new welding process where a rotating non-consumable tool is used to join two materials through high temperature deformation.
Colegrove, Paul Andrew
core   +2 more sources

Welding Deformation Trend Prediction forAluminum Alloy Carbody Sidewalls of City Railway EMU Based on Elasticplastic Theory and Numerical Simulation

open access: yesChengshi guidao jiaotong yanjiu
[Objective] Welding deformation in aluminum alloy carbodies remains a significant issue in the manufacturing process of city railway EMU. Conventional methods for predicting and controlling deformation often rely on past experience and actual vehicle ...
WANG Ya’nan   +6 more
doaj   +1 more source

Prediction of the welding distortion of large steel structure with mechanical restraint using equivalent load methods

open access: yesInternational Journal of Naval Architecture and Ocean Engineering, 2017
The design dimension may not be satisfactory at the final stage due to the welding during the assembly stage, leading to cutting or adding the components in large structure constructions.
Jeong-ung Park, Gyubaek An
doaj   +1 more source

Artificial neural network optimisation of shielding gas flow rate in gas metal arc welding subjected to cross drafts when using alternating shielding gases [PDF]

open access: yes, 2015
This study implemented an iterative experimental approach in order to determine the shielding gas flow required to produce high quality welds in the gas metal arc welding (GMAW) process with alternating shielding gases when subjected to varying ...
Ley, F.H.   +3 more
core   +1 more source

Numerical Simulation and Test Study on Track Welding of QTT

open access: yesAdvances in Astronomy, 2023
Considering the stringent requirement of the pointing accuracy up to 2.5″ of the world’s largest full steerable radio telescope, this paper studies the welding experiment of the azimuth track of the antenna.
Duoxiang Xu   +4 more
doaj   +1 more source

Thermodynamic Pathways of Nonequilibrium Solidification in Wire‐Arc Additive Manufacturing Fe‐Based Multicomponent Alloy Structures

open access: yesAdvanced Engineering Materials, EarlyView.
Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios   +5 more
wiley   +1 more source

Optimal workplacement for robotic friction stir welding task [PDF]

open access: yes, 2013
Robotic manipulators are widely used in industry for welding processes. Inadequate joint stiffness in the manipulators often limits their use for high quality welding operations because of the deformation errors produced during the process.
ABBA, Gabriel, QIN, Jinna, JAIN, Achin
core   +1 more source

A Study on Welding Characteristics, Mechanical Properties, and Penetration Depth of T-Joint Thin-Walled Parts for Different TIG Welding Currents: FE Simulation and Experimental Analysis [PDF]

open access: yes, 2022
Considering the effect of heat input of tungsten inert gas (TIG) arc welding for T-joint welding of thin-walled parts of aluminum alloy 6061-T6, here, the welding characteristics are analyzed via the finite element method. The experiments are carried out
Yuchao Li   +5 more
core   +1 more source

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

open access: yesAdvanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth   +6 more
wiley   +1 more source

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