Results 31 to 40 of about 380,246 (279)

Influence of external restraint distribution on welding buckling of thin plate butt joint

Zhongguo Jianchuan Yanjiu, 2023
ObjectivesIt is easy to produce buckling distortion when welding thin plate butt joints, which affects the construction period, cost and performance, but this can be controlled by applying external restraints.
Xiaoli ZHOU, Bin YI, Jiangchao WANG, Fangming ZHOU   +3 more
doaj   +1 more source

Prediction of Angular Distortion in Gas Metal Arc Welding of Structural Steel Plates Using Artificial Neural Networks

Metals, 2023
The manufacturing of structures ranging from bridges and machinery to all types of seaborne vehicles to nuclear reactors and space rockets has made considerable use of arc welding technologies.
Kuluthupalayam Maruthavanan Eazhil, Ranganathan Sudhakaran, Elumalai Perumal Venkatesan, Abdul Aabid, Muneer Baig   +4 more
doaj   +1 more source

Rolling to control residual stress and distortion in friction stir welds [PDF]

, 2010
Considerable residual stress and distortion can be produced by friction stir welding, impeding industrial implementation. Finite element analysis has been used to develop three innovative rolling methods that reduce residual stress and distortion in ...
Colegrove, Paul A., S. W. Williams, S. A. Morgan, Wen, S. W., Wescott, A., M. Poad, S. W. Wen, P. A. Colegrove, Poad, M., Williams, Stewart W., A. Wescott, Morgan, S. A.   +11 more
core   +1 more source

An assessment of welding distortion analysis using thermal shrinkage technique for a construction machinery structure

Nihon Kikai Gakkai ronbunshu, 2022
The thermal shrinkage technique, which uses shrinkage strain and shrinkage zone to calculate welding distortion, is expected as a simple simulation to predict the welding distortion of large weld structures.
Hiroki MURAKAMI, Hikaru YAMAMOTO, Katsumasa MIYAZAKI, Shigetaka OKANO, Masahito MOCHIZUKI   +4 more
doaj   +1 more source

Effect of Trailing Intensive Cooling on Residual Stress and Welding Distortion of Friction Stir Welded 2060 Al-Li Alloy

High Temperature Materials and Processes, 2018
Trailing intensive cooling with liquid nitrogen has successfully applied to friction stir welding of 2 mm thick 2060 Al-Li alloy. Welding temperature, plastic strain, residual stress and distortion of 2060 Al-Li alloy butt-joint are compared and ...
Ji Shude, Yang Zhanpeng, Wen Quan, Yue Yumei, Zhang Liguo   +4 more
doaj   +1 more source

Weld Distortion Control Methods and Applications of Weld Modeling [PDF]

Volume 6: Materials and Fabrication, Parts A and B, 2009
Computational weld modeling is challenging because many of the processes of welding are highly nonlinear. Material melts and re-solidifies, very high transient thermal gradients are experienced, non-linear temperature dependent plastic straining and phase transformations can occur, among other sources of nonlinearity.
F. W. Brust, G. Wilkowski, D. J. Shim, T. Zhang, E. Kurth   +4 more
openaire   +1 more source

The Influence of Manufacturing Oversizing on Postwelding Distortions of the Fillet Welded Joint

Polish Maritime Research, 2015
Welding proces is basic joining technique in shipbuilding. Such method generated welding distortions which cause a lot of problems during the manufacturing process. In the literature it is proposed wide spectrum of suggestions for a correct estimation of
Kozak Janusz, Kowalski Jakub
doaj   +1 more source

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)

Nihon 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

Metals, 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, Francisco J. G. Silva, António B. Pereira   +2 more
doaj   +1 more source

Electropulse-Driven Dislocation Evolution in Sub-10 nm Metallic Nanocrystals. [PDF]

Adv Sci (Weinh)
Atomic‐scale TEM imaging reveals how nanosecond electropulses drive dislocation evolution in sub‐10 nm metallic nanocrystals. Enhanced electron scattering at structural heterogeneities nucleates dislocation loops and dipoles, which then repeatedly interact and annihilate, causing dislocation density fluctuations or structural disordering.
Hong Y, Zhai X, Li X, Zhang X, Song K, Zhang Z, Wang J.   +6 more
europepmc   +2 more sources