Numerical calculation of residual stress development of multi-pass gas metal arc welding under high restraint conditions

2012 ◽  
Vol 35 ◽  
pp. 201-209 ◽  
Author(s):  
C. Heinze ◽  
C. Schwenk ◽  
M. Rethmeier
Keyword(s):  
Residual Stress ◽  
Numerical Calculation ◽  
Arc Welding ◽  
Gas Metal Arc Welding ◽  
Stress Development ◽  
Metal Arc Welding

Modeling and Simulation of Mecano-Welding Process for Tubular Sections

2011 ◽  
Author(s):  
Zhengkun Feng ◽  
Henri Champliaud
Keyword(s):  
Residual Stress ◽  
Modeling And Simulation ◽  
Arc Welding ◽  
Gas Metal Arc Welding ◽  
Welding Process ◽  
Residual Stress Distribution ◽  
Second Stage ◽  
Metal Arc Welding ◽  
Roll Bending ◽  
Tubular Sections

Mecano-welding process for tubular sections is proposed for manufacturing wind towers. It would be achieved by welding several cylindrical segments produced through roll bending. The first stage is the roll bending from a plate with cylindrical rolls. During the second stage the gas metal arc-welding is used to join the gap of the bent tubular section. The purpose of this research is to model and simulate the process under the well-known ANSYS and ANSYS/LS-DYNA environment, to analyze the residual stress distribution, particularly in the welded zone. This paper presents the modeling and simulation preparation for the second stage.

Comparison of Welding Deformation and Residual Stress in Q345 Steel Thin-Plate Joints Induced by Laser Beam Welding and Gas Metal Arc Welding

2016 ◽  
Vol 43 (6) ◽  
pp. 0602010
Author(s):  
毛志涛 Mao Zhitao ◽  
蒲晓薇 Pu Xiaowei ◽  
汪维登 Wang Weideng ◽  
叶延洪 Ye Yanhong ◽  
邓德安 Deng Dean
Keyword(s):  
Residual Stress ◽  
Laser Beam ◽  
Thin Plate ◽  
Arc Welding ◽  
Gas Metal Arc Welding ◽  
Laser Beam Welding ◽  
Welding Deformation ◽  
Metal Arc Welding

Modeling and Simulation of Mecano-Welding Process for Cylinders

2012 ◽  
Author(s):  
Zhengkun Feng ◽  
Henri Champliaud
Keyword(s):  
Numerical Simulation ◽  
Residual Stress ◽  
Arc Welding ◽  
Thick Plate ◽  
Gas Metal Arc Welding ◽  
Welding Process ◽  
The Third ◽  
Metal Arc Welding ◽  
Roll Bending ◽  
Arc Welding Process

Pyramidal three-roll bending is widely used in manufacture due to its simple configuration and advantage for thick plate roll bending. However, there remain two planar zones near the front and rear ends of the bent shape. A mecano-welding process which provides improved circularity of the bent shape is proposed in this paper. This process includes three sub-processes: the first sub-process is the roll bending from a plate with cylindrical rolls; the second sub-process is the gas metal arc-welding process used to join the gap of the bent tubular section; the third sub-process is the rerun roll bending of the welded shape. Results of the numerical simulation of the first two sub-processes under the well-known ANSYS and ANSYS/LS-DYNA environment are reported. The bent shape after the first roll bending, the distributions of the temperature and residual stress after the welding are illustrated and discussed.

Neutron diffraction residual stress measurements of welds made with pulsed tandem gas metal arc welding (PT-GMAW)

2014 ◽  
Vol 29 (S1) ◽  
pp. S24-S27
Author(s):  
A.M. Paradowska ◽  
N. Larkin ◽  
H. Li ◽  
Z. Pan ◽  
C. Shen ◽  
...  
Keyword(s):  
Residual Stress ◽  
Neutron Diffraction ◽  
Arc Welding ◽  
Gas Metal Arc Welding ◽  
Pulse Mode ◽  
Butt Weld ◽  
Ship Building ◽  
Stress Measurements ◽  
Metal Arc Welding ◽  
Increase Productivity

Pulsed tandem gas metal arc welding (PT-GMAW) is being developed to increase productivity and minimise weld-induced distortion in ship-building. The PT-GMAW process was used in pulse–pulse mode to butt-weld two different strength and thickness steels; the residual stress and hardness profiles of the welds are reported and correlated.

Numerical Simulation of Mecano-Welding Process for Cylinder Manufacturing

2012 ◽  
Author(s):  
Zhengkun Feng ◽  
Henri Champliaud
Keyword(s):  
Numerical Simulation ◽  
Residual Stress ◽  
Arc Welding ◽  
Gas Metal Arc Welding ◽  
Welding Process ◽  
The Third ◽  
Metal Arc Welding ◽  
Roll Bending ◽  
Arc Welding Process

Pyramidal three-roll bending has the advantage of simple configuration and is widely used in manufacture. However, the bent shape has two planar zones near the front and rear ends. This paper proposes the modeling of the mecano-welding process which provides improved circularity of the bent shape. This process includes three sub-processes: the first sub-process is the roll bending from a plate with cylindrical rolls, the second sub-process which is the gas metal arc-welding process used to join the gap of the bent tubular section, and the third sub-process is the rerun roll bending of the welded shape. Results of the simulation of the first two sub-processes under the well-known ANSYS and ANSYS/LS-DYNA environment are reported. The bent shape after the first roll bending, the distributions of the temperature and residual stress after the welding are illustrated.

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