Results 21 to 30 of about 4,090,931 (280)

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

Welding Residual Stress Elimination Technique in the Top Chord of Main Truss of Steel Truss Bridge

Buildings, 2023
The large-amplitude fluctuations of ultrasound in high-energy ultrasonic stress relieving cause the crystal grains or lattices in the high residual stress zone to vibrate or creep alternately.
Long Piao, Jianfeng Yuan, Niujing Ma, Changqi Yue, Ronghui Wang, Gangbing Zheng   +5 more
doaj   +1 more source

Characterisation of residual stress state and distortion in welded plates stress engineered by local mechanical tensioning [PDF]

, 2014
Local mechanical tensioning is one of the most efficient and industrially relevant stress engineering techniques to modify weld residual stress field and subsequently reduce buckling distortion. However, application of rolling load and its magnitude need
Colegrove, Paul A., Wescott, A., Ganguly, Supriyo, Nagy, T., Williams, Stewart W.   +4 more
core   +1 more source

Welding process optimization for blast furnace shell by numerical simulation and experimental study

Journal of Materials Research and Technology, 2023
At cold temperatures, the stress after welding a blast furnace shell is not completely released because of the fast cooling speed, which results in cracks.
Hongchao Ji, Jie Yuan, Xiaomin Huang, Xiaoming Yang, Shengqiang Liu, Baoyu Wang   +5 more
doaj   +1 more source

Comparison of Measured Residual Stress Distributions in Extra-Thick Butt Welds Joined by One-Pass EGW and Multipass FCAW

Advances in Mechanical Engineering, 2014
This study is to measure the welding residual stress distributions in a 70 mm-thick butt weld by one-pass electron gas welding using both the inherent strain method and neutron diffraction method, respectively.
Jeong-Ung Park, GyuBaek An, Wan Chuck Woo, Jae-hyouk Choi, Ninshu Ma   +4 more
doaj   +1 more source

Problems in using a comb sample as a stress-free reference for the determination of welding residual stress by diffraction [PDF]

, 2010
Precise measurement of a stress-free reference lattice parameter is vital in the determination of residual stress by diffraction techniques using θ/2θ-based analyses.
Ganguly S, Fitzpatrick M, Edwards, L., Edwards, Lyndon, M.E. Fitzpatrick, Fitzpatrick, Michael E., L. Edwards, Ganguly, S., Fitzpatrick, M. E., S. Ganguly, Ganguly, Supriyo, Edwards L   +11 more
core   +1 more source

Study on Residual Stress in Single-sided and Double-sided Friction Stir Welding of Thick Plate 2219 Aluminum Alloy

Yuanzineng kexue jishu
Welding residual stress is related to the mechanical properties and service life of components. To accurately grasp the residual stress distribution of thick plate 2219 aluminum alloy after friction stir welding (FSW), optimize the welding process, and ...
WANG Binrong
doaj   +1 more source

Modelling distortion reduction on pre- and post-weld rolled gas metal arc welded plates [PDF]

, 2011
Residual stress generated during welding can cause distortion, especially when appliedon relatively thin plates. There are several standard and well documented techniquesto reduce distortion and residual stress after welding, however these techniques ...
Colegrove, Paul A., Wen, S. W., Coules, Harry E., Cozzolino, Luis D.   +3 more
core   +3 more sources

Numerical simulation of the influence of welding direction on residual stress after double welding of Q345 stacked-plates

Metalurgija, 2020
Based on the welding numerical simulation software Visual-environment, this paper calculates and analyzes the residual stress field for the double pass welding of Q345 stacked plates. The paper mainly studies the influence of different welding directions
B. Xu, H. Fu, Q. H. Xiao, S. Li, T. Kang
doaj  

Effect of Residual Stress on the Ultimate Bearing Capacity of Titanium Alloy Pressure Spherical–Cylindrical-Combined Shells

Metals
Titanium alloy pressure spherical–cylindrical shells enable the effective utilization of the strength of spherical and cylindrical pressure-resistant shell components.
Yuxuan Wang, Jianting Guo, Bowen Zhang, Keke Ge, Liangbi Li, Feng Lv   +5 more
doaj   +1 more source