Results 41 to 50 of about 31,704 (210)

Dominant parameter of weld angular distortion in structural materials based on theory of inherent strain (Development of accuracy management system for high quality construction in welded structures on the basis of advanced theory of inherent strain)

open access: yesNihon Kikai Gakkai ronbunshu, 2016
In this paper, a dominant parameter of weld angular distortion is discussed based on the identically-distributed inherent strain within mechanical melting zone, which is customized for quantifying and coordinately managing the weld angular distortion ...
Masahito MOCHIZUKI, Shigetaka OKANO
doaj   +1 more source

Comparison of Finite Element Methods in Fusion Welding Processes—A Review

open access: yesMetals, 2020
Currently, welding processes have become one of the most used methods for joining materials in all kinds of industries, thanks to properties such as high speed and high tensile strength.
Eva S. V. Marques   +2 more
doaj   +1 more source

Experimental study on generation characteristics of weld buckling distortion in thin plate

open access: yesNihon Kikai Gakkai ronbunshu, 2016
In this study, a systematic investigation on the effect of welding conditions on longitudinal bending and angular distortions generated in welded thin plate was experimentally performed with a focus on whether or not the weld buckling distortion occurs ...
Shigetaka OKANO, Masahito MOCHIZUKI
doaj   +1 more source

Low distortion welded joints for NCSX* [PDF]

open access: yes2009 23rd IEEE/NPSS Symposium on Fusion Engineering, 2009
The National Compact Stellarator Experiment (NCSX) required precise positioning of the field coils in order to generate suitable magnetic fields. A set of three modular field coils were assembled to form the Half Field-Period Assemblies (HPA). Final assembly of the HPA required a welded shear plate to join individual coils in the nose region due to the
M. Denault, M Viola, W. England
openaire   +1 more source

Analysis of the Effect of Tungsten Inert Gas Welding Sequences on Residual Stress and Distortion of CFETR Vacuum Vessel Using Finite Element Simulations

open access: yesMetals, 2018
The as-welded sectors of China Fusion Engineering Testing Reactor (CFETR) vacuum vessel (VV) have very tight tolerances. However, it is difficult to investigate the welding stress and distortion without the production of a full-scale prototype. Therefore,
Jingwen Zhang   +8 more
doaj   +1 more source

Modified Equivalent Load Method for Welding Distortion Analysis

open access: yesJournal of Marine Science and Engineering, 2020
In this study, modified equivalent load method for welding distortion analysis is suggested to improve its accuracy. To avoid the excessive computational time for welding distortion analysis of large welded structures, shell element-based elastic ...
Jaemin Lee, Hyun Chung
doaj   +1 more source

Repair of honeycomb panels with welded breakaway studs [PDF]

open access: yes, 1969
Damaged metallic honeycomb panels can be repaired by drilling holes and welding breakaway studs to both facing sheets. Minimal heat required for welding reduces distortion of highly stressed panels.
Bruce, D. F.
core   +1 more source

A comparison between single sided friction stir welded and submerged arc welded DH36 steel thin plate [PDF]

open access: yes, 2012
The adoption of the friction stir welding (FSW) process into the shipbuilding industry is being considered as a medium term issue. Currently the data on friction stir welded mild steels tends to be fragmented, with critical areas being short on specific ...
Cater, Stephen R.   +3 more
core  

Investigating influence of external restraint on welding distortion in LAHS steel thin-plate structures by means of integrated computational approach

open access: yesJournal of Materials Research and Technology, 2022
In order to ensure the dimensional accuracy during welding assembly, external restraints are often used to control welding-induced distortion. The objective of this study is to investigate the effectiveness of external restraints on the reduction of ...
Wei Liang, Dean Deng
doaj   +1 more source

Techniques for controlling warpage and residual stresses in welded structures [PDF]

open access: yes, 1969
Thermal pattern alteration technique controls both distortion and residual stresses in aluminum weldments. Cryogenic liquids and auxiliary heat sources are used to produce contraction and expansion of metal in the vicinity of the weld in such a manner as
Cole, D. Q.
core   +1 more source

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