Thermal field and residual stress analyses of similar and dissimilar weldments joined by constant and pulsed current TIG welding techniques

2021 ◽  
pp. 1-16
Author(s):  
Balram Yelamasetti ◽  
Venkat Ramana G ◽  
Sandeep Manikyam ◽  
Vishnu Vardhan T
Keyword(s):  
Residual Stress ◽  
Thermal Field ◽  
Tig Welding ◽  
Pulsed Current ◽  
Stress Analyses

Evaluation Study on Angular Distortion and Residual Stress of Stainless Steel Pulsed TIG Weldment

2011 ◽  
Vol 291-294 ◽  
pp. 905-909
Author(s):  
Kuang Hung Tseng ◽  
Hsiang Lin Sung
Keyword(s):  
Residual Stress ◽  
Stainless Steel ◽  
Vertical Displacement ◽  
Evaluation Study ◽  
Tig Welding ◽  
Angular Distortion ◽  
Hole Drilling ◽  
Welding Parameters ◽  
Pulsed Current ◽  
Lower Heat

The aim of this study was to investigate the effect of pulsed current welding parameters on angular distortion and residual stress of TIG weldment. Autogenous TIG welding was applied on type 316L stainless steel sheet to produce bead-on-plate welds. Angular distortion was determined using the mean vertical displacement method. Residual stress was determined using the hole-drilling strain- gage method. The results showed that the pulsed current TIG welding has a number of advantages, including lower heat input and consequently a reduction in distortion and residual stress of weldment.

scholarly journals Transverse fatigue behaviour and residual stress analyses of double sided FSW aluminium alloy joints

2019 ◽  
Vol 42 (9) ◽  
pp. 1980-1990 ◽  
Author(s):  
Enrico Salvati ◽  
Joris Everaerts ◽  
Koji Kageyama ◽  
Alexander M. Korsunsky
Keyword(s):  
Residual Stress ◽  
Aluminium Alloy ◽  
Fatigue Behaviour ◽  
Stress Analyses

Finite Element Analysis Model of Corrosion Fatigue for TIG Welding Workpiece

2016 ◽  
Vol 707 ◽  
pp. 154-158
Author(s):  
Somsak Limwongsakorn ◽  
Wasawat Nakkiew ◽  
Adirek Baisukhan
Keyword(s):  
Residual Stress ◽  
Finite Element Analysis ◽  
Finite Element ◽  
Fatigue Life ◽  
Corrosion Fatigue ◽  
Welding Process ◽  
Simulation Software ◽  
Tig Welding ◽  
Element Analysis ◽  
Fea Model

The proposed finite element analysis (FEA) model was constructed using FEA simulation software, ANSYS program, for determining effects of corrosion fatigue (CF) from TIG welding process on AISI 304 stainless steel workpiece. The FEA model of TIG welding process was developed from Goldak's double ellipsoid moving heat source. In this paper, the residual stress results obtained from the FEA model were consistent with results from the X-ray diffraction (XRD) method. The residual stress was further used as an input in the next step of corrosion fatigue analysis. The predictive CF life result obtained from the FEA CF model were consistent with the value obtained from stress-life curve (S-N curve) from the reference literaturature. Therefore, the proposed FEA of CF model was then used for predicting the corrosion fatigue life on TIG welding workpiece, the results from the model showed the corrosion fatigue life of 1,794 cycles with testing condition of the frequency ( f ) = 0.1 Hz and the equivalent load of 67.5 kN (equal to 150 MPa) with R = 0.25.

scholarly journals Numerical simulation of pulsed current tungesteninert gas (TIG) welding arc

2011 ◽  
Vol 60 (4) ◽  
pp. 048102
Author(s):  
Guo Chao-Bo ◽  
Shi Yu ◽  
Fan Ding ◽  
Huang Jian-Kang
Keyword(s):  
Numerical Simulation ◽  
Tig Welding ◽  
Pulsed Current ◽  
Welding Arc

X-Ray Stress Analysis of Nickel-Plated Components Using Different Radiation Wavelengths

1985 ◽  
Vol 29 ◽  
pp. 49-55 ◽  
Author(s):  
R. H. McSwain ◽  
E. B. S. Pardue ◽  
R. W. Hendricks ◽  
M. V. Mathis
Keyword(s):  
Residual Stress ◽  
Stress Analysis ◽  
The State ◽  
Nickel Plating ◽  
Load Bearing ◽  
X Ray ◽  
Stress Gradients ◽  
State Of Stress ◽  
Stress Analyses

X-ray stress analyses were performed on seven (7) nickel-plated camshafts from helicopter transmissions. The purpose of this investigation was to determine if this residual stress technique was useful in determining the state of stress in load-bearing plated surfaces of critical reworked aircraft components. Specifically, it was desired to characterize six different stages of nickel plating processing. These were: as-plated, plated and baked, machined, machined and baked, ground, and ground and baked. Three different radiation wavelengths with different penetrations were used In this investigation. CrKα , CoKα , and CuKα, radiations were each used on all of the camshafts. These wavelengths were selected to determine if there were stress gradients in the plated layers. This paper presents and discusses the results of these studies.

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