Results 1 to 10 of about 753,126 (286)

Reductions in the Laser Welding Deformation of STS304 Cylindrical Structure Using the Pre-Stress Method

Metals, 2023
Welding deformation occurs due to non-uniform thermal expansion, thermal contraction, restraint, and phase transformation in a metal by a local welding heat source.
Se-Hwan Lee, Ho-Chan Jeon, Jeong-Ung Park   +2 more
doaj   +2 more sources

Classification of pressure welding methods depending on thermal deformation conditions [PDF]

MATEC Web of Conferences, 2020
In this study, a classification of welding methods is proposed, based on the peculiarities of metal gripping under various heat-deformation conditions for the implementation of welding processes.
Bulychev Vsevolod, Latypov Rashit, Golubina Svetlana, Latypova Gyulnara, Rodin Artem   +4 more
doaj   +4 more sources

Prediction and controlling for welding deformation of propeller base structure

Journal of Ocean Engineering and Science, 2021
Welding deformation often brings about manufacturing problems such as dimensional inaccuracies during assembly and reduces fabrication efficiency. Prediction and controlling welding deformation can help to improve the quality of welded structures.
Junan Yi, Jian Lin, Zhen Chen, Tianyu Chen   +3 more
doaj   +3 more sources

Influence of welding sequence on residual stress distribution and deformation in Q345 steel H-section butt-welded joint

Journal of Materials Research and Technology, 2021
Based on Marc. MSC software, this paper developed a thermo-elastic-plastic finite element method (FEM) to simulate the welding residual stresses and deformation in the low alloy high strength steel joints. The welding residual stresses and deformation in
Yifeng Wang, Guangjie Feng, Xiaowei Pu, Dean Deng   +3 more
doaj   +3 more sources

A Study on the Effects of Welding Deformation According to Weld Sequence in Overlay-Welded Structures

Metals
In this study, thermal elasto-plastic finite element analysis was conducted to derive the optimal welding sequence to minimize overlay welding deformation on the water wall panels of an SRF (solid refuse fuel) boiler.
Hong-Lae Jang, Hyunsu Ryu, Sungwook Kang
doaj   +2 more sources

Numerical Analysis of Electron Beam Welding Deformation for the Vacuum Vessel Lower Port Stub of 316L Stainless Steel

Metals, 2022
The China Fusion Engineering Test Reactor vacuum vessel has strict tolerances requirements and a large number of fully penetrated joints in the manufacturing and assembly processes.
Haibiao Ji, Jia Tao, Jiefeng Wu, Zhihong Liu, Jianguo Ma, Xiaowei Xia, Xiaodong Lin, Xiang Gao   +7 more
doaj   +1 more source

Prediction and reduction of out-of-plane welding distortion of typical block in fabrication of semi-submersible lifting and disassembly platform

Zhongguo Jianchuan Yanjiu, 2021
ObjectivesThe welding distortion of block structures in the fabrication of semi-submersible lifting and disassembly platforms influences their dimensional accuracy and production schedule.MethodsThus, taking a B514 block as the research object, the ...
Jiangchao WANG, Hong ZHANG, Runchou YANG, Jiancheng LIU, Hong ZHOU   +4 more
doaj   +1 more source

Controlling deformation and residual stresses in a TIG joint for Invar steel molds

Journal of Materials Research and Technology, 2023
Invar steel is used to produce molds for composite materials for its thermal expansion coefficient similarity to those materials. These molds show wear resistance, provide good dimensional accuracy of produced parts, and they are produced with tungsten ...
Yu Su, Xiawei Yang, Dong Wu, Tingxi Meng, Wenya Li, Wuyuan Feng, Wenwei Zhao, Achilles Vairis   +7 more
doaj   +1 more source

Optimization of welding parameters on welding distortion and stress in S690 high-strength steel thin-plate structures

Journal of Materials Research and Technology, 2023
This study examines the impact of welding heat input on the residual stress and welding deformation of large, thin-walled constructions made of ultra-high strength steel using a single shot calculation method.
Shuai Liu, Zhiqiang Wu, Huan Liu, Honggang Zhou, Kangzong Deng, Chuanhui Wang, Longfei Liu, Eric Li   +7 more
doaj   +1 more source

Computational analysis of welding radial deformation of typical pressure cylindrical shell with ring stiffener

International Journal of Naval Architecture and Ocean Engineering, 2022
We report on the evaluation of the radial deformation caused by the welding process on a typical pressure cylindrical shell with ring stiffeners. Welding experiments on butt and fillet welding were conducted beforehand, and temperature-dependent material
Hong Zhou, Chaonan Shen, Jiangchao Wang
doaj   +1 more source