Residual stresses in thin-sheet zinc-coated steel joints after arc welding and plasma brazing

2020 ◽  
Vol 2020 (9) ◽  
pp. 42-46
Author(s):  
S.V. Maksymova ◽  
◽  
I.V. Zvolinskyy ◽  
V.V. Yurkiv ◽  
S.N. Minakov ◽  
...  
Keyword(s):  
Residual Stresses ◽  
Arc Welding ◽  
Thin Sheet ◽  
Coated Steel ◽  
Zinc Coated Steel ◽  
Steel Joints

scholarly journals Residual stresses in thin-sheet galvanized steel joints after arc welding and plasma brazing

2020 ◽  
Vol 2020 (9) ◽  
pp. 31-35
Author(s):  
S.V. Maksymova ◽  
◽  
I.V. Zvolinskyy ◽  
V.V. Yurkiv ◽  
S.M. Minakov ◽  
...  
Keyword(s):  
Residual Stresses ◽  
Arc Welding ◽  
Thin Sheet ◽  
Galvanized Steel ◽  
Steel Joints

Evaluation of Residual Stresses in Butt Welded Joint of Dissimilar Material by FEM

2017 ◽  
Vol 754 ◽  
pp. 268-271 ◽  
Author(s):  
Raffaele Sepe ◽  
M. Laiso ◽  
A. de Luca ◽  
Francesco Caputo
Keyword(s):  
Finite Element ◽  
Residual Stresses ◽  
Arc Welding ◽  
Structural Integrity ◽  
Welded Joint ◽  
Dissimilar Material ◽  
Fe Model ◽  
Butt Joints ◽  
Integrity Assessment ◽  
Steel Joints

The study proposed within this paper deals with an application of finite element techniques to the thermo-structural analysis of a dissimilar butt-welded joint. Residual stresses induced by the fusion arc-welding of steel joints in power generation plants are a concern to the industry. Nowadays, the application of finite element method appears to be a very efficient method for the prediction and the investigation of the weld-induced residual stresses, nevertheless the detailed modelling of all phenomena involved in such process is still challenging. The structural integrity assessment of welded structures strongly requires a deep investigation of weld-induced residual stresses in order to be compliant with safety requirement of power plant. The longitudinal and transversal residual stresses in dissimilar material butt joints of 8 mm thick for V-groove shape were studied. The developed thermo-mechanical FE model as well as the simulation procedures are detailed and results are discussed. As a result of such work, it has been found out that residual stresses in the two dissimilar plates are characterized by very different magnitudes and distribution.

Microstructure and Mechanical Properties of Aluminum/Stainless Steel Joints Welded by Different Weld Heat Input

2011 ◽  
Vol 189-193 ◽  
pp. 3253-3256
Author(s):  
Hong Tao Zhang ◽  
Jia Kun Liu ◽  
Hong Yun Zhao
Keyword(s):  
Mechanical Properties ◽  
Heat Input ◽  
Filler Metal ◽  
Dissimilar Metals ◽  
Coated Steel ◽  
Microstructure And Mechanical Properties ◽  
Zinc Coated Steel ◽  
Interfacial Intermetallic Compound ◽  
Steel Joints ◽  
Aluminum Base

Dissimilar metals joints between aluminum and zinc-coated steel were joined by CMT machine with ER4043 filler metal. The microstructure and mechanical properties of the joints obtained with different heat input were analyzed. The results showed that the thickness of interfacial intermetallic compound was determined by the welding heat input. Tensile specimens were broken in HAZ of aluminum base metal and the tensile strength of the joint can reach 122.3MPa.

Weldability of Zinc Coated Steel Sheet by Plasma Arc Welding

2008 ◽  
Vol 580-582 ◽  
pp. 61-66
Author(s):  
Winarto
Keyword(s):  
Arc Welding ◽  
Steel Sheet ◽  
Travel Speed ◽  
Industrial Applications ◽  
Welding Parameters ◽  
Plasma Arc Welding ◽  
Coated Steel ◽  
Plasma Arc ◽  
Coated Steel Sheet ◽  
Zinc Coated Steel

The use of zinc coated steel in the automotive industry is rapidly increasing as a result of consumer demand for improved corrosion resistance of automobile bodies. Plasma arc welding of zinc coated steels is currently under investigation, with a strong emphasis on their weldability. In the present study, plasma arc welding has been performed on zinc coated steel with several welding parameters, such as current, travel speed and flow of plasma gas. Those parameters are interrelated in their effect on penetration, in order to produce sound welds. An optimum combination of parameters was sought, which would give full penetration of the weld, with the highest travel speed and no visual defects on every steel-sheet as a basis; hence, characterizing the process in the most interesting way and into a useful industrial applications. It is found that zinc coated steel sheets of 0.7 mm and 1 mm thickness can be welded by plasma arc welding. The microstructures of welds were almost similar. There is a slight difference in chemical composition of the welds because of zinc pick-up which varies from the top surface to the bottom welds. The presence of zinc in the welds did not have any effect on the mechanical properties.

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