Author
N. Arivazhagan
Other affiliations: Indian Institute of Technology Roorkee
Bio: N. Arivazhagan is an academic researcher from VIT University. The author has contributed to research in topics: Welding & Gas tungsten arc welding. The author has an hindex of 29, co-authored 163 publications receiving 2405 citations. Previous affiliations of N. Arivazhagan include Indian Institute of Technology Roorkee.
Papers
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TL;DR: In this article, the microstructure and mechanical properties of AISI 304 stainless steel and low alloy steel joints by Gas Tungsten Arc Welding, Electron Beam Welding (EBW), and Friction Welding were investigated.
219 citations
TL;DR: In this paper, the effect of laser parameters on the geometry, morphology and homogeneity of single track realization was analyzed by utilizing characterization tools such as laser particle size analyzer, macro and microscopic inspection, Scanning Electron Microscope (SEM), X-Ray Diffraction (XRD) and Fourier Transform Infrared Spectroscopy (FTIR).
142 citations
TL;DR: In this article, five different tool designs have been employed to analyse the influence of rotation speed and traverse speed over the microstructural and tensile properties of dissimilar AA2024 and AA6061 aluminium plates of 5mm thickness.
99 citations
TL;DR: In this article, an attempt has been made to weld the precipitation hardened Nickel based super alloy Inconel 718 and austenitic stainless steel AISI 316L using Continuous Current Gas Tungsten Arc Welding (CCGTAW) and Pulsed Current GasTungsten arc Welding process employing ER2553 and ERNiCu-7 fillers.
98 citations
TL;DR: In this paper, the effect of fillers on the pulsed current gas tungsten arc welding (PCGTAW) of Inconel 625 and inconel 718 was investigated, and it was attested from the notch tensile studies that the notch strength ratio was greater than unity.
79 citations
Cited by
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TL;DR: There is, I think, something ethereal about i —the square root of minus one, which seems an odd beast at that time—an intruder hovering on the edge of reality.
Abstract: There is, I think, something ethereal about i —the square root of minus one. I remember first hearing about it at school. It seemed an odd beast at that time—an intruder hovering on the edge of reality.
Usually familiarity dulls this sense of the bizarre, but in the case of i it was the reverse: over the years the sense of its surreal nature intensified. It seemed that it was impossible to write mathematics that described the real world in …
33,785 citations
TL;DR: In this paper, the authors focus on the following topics: (1) materials requirements in design of aircraft structures and engines, (2) recent advances in the development of aerospace materials, (3) challenges faced by recent aerospace materials and (4) future trends in aerospace materials.
477 citations
TL;DR: In this article, a three dimensional finite element model (FEM) is introduced in order to simulate the melt pool size during the Selective Laser Melting (SLM) process, which adopts the Optical Penetration Depth (OPD) of laser beam into the powder bed and its dependency on the powder size in definition of the heat source.
316 citations
01 Jan 2017
TL;DR: In this paper, a literature review of finite element simulation studies for metallic powder bed additive manufacturing processes is presented, where various approaches in the numerical modeling of the processes and the selection of materials properties are presented in detail.
Abstract: This article provides a literature review of finite element simulation studies for metallic powder bed additive manufacturing processes. The various approaches in the numerical modeling of the processes and the selection of materials properties are presented in detail. Simulation results are categorized according to three major findings’ groups (i.e. temperature field, residual stresses and melt pool characteristics). Moreover, the means used for the experimental validation of the simulation findings are described. Looking deeper into the studies reviewed, a number of future directions are identified in the context of transforming simulation into a powerful tool for the industrial application of additive manufacturing. Smart modeling approaches should be developed, materials and their properties should be further characterized and standardized, commercial packages specialized in additive manufacturing simulation have to be developed and simulation needs to become part of the modern digital production chai...
224 citations