Journal ArticleDOI
Laser-induced thermal stresses on steel surface
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TLDR
In this paper, an experiment was conducted to irradiate the AISI 4142 steel surface by an Nd-YAG laser and micro-photography and EDS analysis of the heated regions were carried out.About:
This article is published in Optics and Lasers in Engineering.The article was published on 1998-07-01. It has received 57 citations till now. The article focuses on the topics: Surface layer & Austenite.read more
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Dissertation
Investigation of residual stresses in the laser melting of metal powders in additive layer manufacturing
TL;DR: In this paper, a finite element model was developed for the purpose of investigating the development of the thermal and residual stresses in the laser melting of metal powders, which were then used for the structural field analysis to predict the residual stresses and displacements.
Journal ArticleDOI
Laser cutting of thick sheet metals: Effects of cutting parameters on kerf size variations
TL;DR: In this article, the effect of cutting parameters on the percentage of kerf width variation is examined and a factorial analysis is carried out to identify the main effects and interactions of the parameters.
Journal ArticleDOI
Material response to thermal loading due to short pulse laser heating
TL;DR: In this paper, the electron kinetic theory approach is employed to model the heating process of gold, and the results of thermo-elastic analysis due to the temperature field predicted in the previous study are given here.
Journal ArticleDOI
Thermal and stress analysis of a sheet metal in welding
TL;DR: In this paper, a cantilever assembly subjected to heating at its fixed end, which resembles the welding of a sheet metal is considered, and a control volume approach is introduced for numerical solution of heat transfer equations while the finite element method is adopted for stress field predictions.
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Laser heating of multilayer assembly and stress levels: elasto-plastic consideration
TL;DR: In this article, the authors applied elasto-plastic analysis when modeling the thermal stresses due to a laser heating pulse and found that stress levels higher than the yield stress of the substrate material occur in the surface region.