Journal ArticleDOI
The influence of thermal field in the electric arc welding of X60 carbon steel components in the CO2 environment
Lenuţa Cîndea,C Haţiegan,Nicolina Pop,Romeo Negrea,Eugen Raduca,Gilbert-Rainer Gillich,Moşteanu Dănuţ,Marian-Dumitru Nedeloni +7 more
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In this paper, the influence of the thermal field on X60 carbon steel components during welding in CO 2 environment given that the heat source (electric arc) moves was studied through ANSYS software for modeling and simulation of welded components.About:
This article is published in Applied Thermal Engineering.The article was published on 2016-06-25. It has received 18 citations till now. The article focuses on the topics: Welding & Arc welding.read more
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The prediction of the whole weld in fiber laser keyhole welding based on numerical simulation
Yuewei Ai,Ping Jiang,Xinyu Shao,Peigen Li,Chunming Wang,Gaoyang Mi,Shaoning Geng,Liu Yang,Wei Liu +8 more
TL;DR: Wang et al. as mentioned in this paper proposed a three-dimensional model considering the heat transfer, keyhole free surface, surface tension and recoil pressure for simulating the formation process of the weld bead and predicting its full sizes in the fiber laser keyhole welding.
Journal ArticleDOI
Assessment of Process, Parameters, Residual Stress Mitigation, Post Treatments and Finite Element Analysis Simulations of Wire Arc Additive Manufacturing Technique
M. D. Barath Kumar,M. Manikandan +1 more
TL;DR: In this article, an exhaustive overview of the residual stresses, microstructures, and material properties of the as-fabricated and post-manufactured treated wire arc additive manufacturing (WAAM) components are presented.
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Thermal-induced microstructural evolution and defect distribution of wire-arc additive manufacturing 2Cr13 part: Numerical simulation and experimental characterization
Jinguo Ge,Tiejun Ma,Wentao Han,Yuan Tao,Tounan Jin,Hanguang Fu,Rongshi Xiao,Yongping Lei,Jian Lin +8 more
TL;DR: In this paper, the intrinsic relationship of thermal history- microstructural evolution- defect distribution was explored with the combination of numerical simulation and experimental characterization during the arc deposition of 2Cr13 part.
Journal ArticleDOI
Thermal model of the Gas Metal Arc Welding hardfacing process
TL;DR: In this paper, the authors presented the application of the CFD FVM model for thermal simulation of the GMAW hardfacing process, focusing on heat transfer aspects of welding process like distribution of temperatures, heat transfer from electric arc, thermal effects of melting and solidifying of metal.
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A new finite element model for welding heat sources
TL;DR: In this article, a double ellipsoidal geometry is proposed to model both shallow penetration arc welding processes and the deeper penetration laser and electron beam processes, which can be easily changed to handle non-axisymmetric cases such as strip electrodes or dissimilar metal joining.
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Recent developments in stainless steels
Abstract: This article presents an overview of the developments in stainless steels made since the 1990s. Some of the new applications that involve the use of stainless steel are also introduced. A brief introduction to the various classes of stainless steels, their precipitate phases and the status quo of their production around the globe is given first. The advances in a variety of subject areas that have been made recently will then be presented. These recent advances include (1) new findings on the various precipitate phases (the new J phase, new orientation relationships, new phase diagram for the Fe–Cr system, etc.); (2) new suggestions for the prevention/mitigation of the different problems and new methods for their detection/measurement and (3) new techniques for surface/bulk property enhancement (such as laser shot peening, grain boundary engineering and grain refinement). Recent developments in topics like phase prediction, stacking fault energy, superplasticity, metadynamic recrystallisation and the calculation of mechanical properties are introduced, too. In the end of this article, several new applications that involve the use of stainless steels are presented. Some of these are the use of austenitic stainless steels for signature authentication (magnetic recording), the utilisation of the cryogenic magnetic transition of the sigma phase for hot spot detection (the Sigmaplugs), the new Pt-enhanced radiopaque stainless steel (PERSS) coronary stents and stainless steel stents that may be used for magnetic drug targeting. Besides recent developments in conventional stainless steels, those in the high-nitrogen, low-Ni (or Ni-free) varieties are also introduced. These recent developments include new methods for attaining very high nitrogen contents, new guidelines for alloy design, the merits/demerits associated with high nitrogen contents, etc.
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Effects of welding speed, energy input and heat source distribution on temperature variations in butt joint welding
D. Gery,Hui Long,Paul Maropoulos +2 more
TL;DR: In this article, a moving heat source model based on Goldak's double-ellipsoid heat flux distribution is presented for finite element thermal simulation of the plate butt joint welding.
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A study on the prediction of the laser weld shape with varying heat source equations and the thermal distortion of a small structure in micro-joining ☆
Won Seok Chang,Suck-Joo Na +1 more
TL;DR: In this paper, the results of calculation using various heat source equations that have been proposed in previous studies were compared to the predictions of a new model, which treats the problem of predicting, by numerical means, the thermo-mechanical behavior of laser spot welding for thin stainless steel plates.
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Experimental and numerical analyses of residual stress distributions in TIG welding process for 304L stainless steel
TL;DR: In this article, the effect of geometry configurations on the residual stress distributions were predicted from the 3D computer analysis using a thermo-elastoplastic constitutive equation and compared with the X-ray diffraction method.