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The theory of laser materials processing : heat and mass transfer in modern technology
TLDR
In this paper, the authors present a comprehensive numerical simulation of laser materials processing, including keyhole welding, keyhole cutting, and femtosecond laser Pulse Interactions with metals.Abstract:
Mathematics in Laser Processing.- Simulation of Laser Cutting.- Keyhole Welding: The Solid and Liquid Phases.- Laser Keyhole Welding: The Vapour Phase.- Basic Concepts of Laser Drilling.- Arc Welding and Hybrid Laser-Arc Welding.- Metallurgy of Welding and Hardening.- Laser Cladding.- Laser Forming.- Femtosecond Laser Pulse Interactions with Metals.- Comprehensive Numerical Simulation of Laser Materials Processing.read more
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Laser Material Processing
TL;DR: In this paper, the effect of reflectivity of the surface, when a pure, monochromatic laser (6) is used, is remedied by the simultaneous application of a relatively shorter wavelength beam (1).
Journal ArticleDOI
Laser powder deposition
Lino Costa,Rui Vilar +1 more
TL;DR: In this paper, the state-of-the-art of laser powder deposition (LPD) is reviewed and the main issues related to LPD are revisited, including the main R&D efforts and the major issues of LPD.
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Laser modification of the materials surface layer – a review paper
Jan Kusiński,S. Kac,Agnieszka Kopia,A. Radziszewska,Magdalena Rozmus-Górnikowska,Boguslaw Major,L. Major,J. Marczak,Aleksander Lisiecki +8 more
TL;DR: The state of laser processing in surface materials modification in Poland is reported, based on own experience, coworkers and coauthors results, as well as the literature review as mentioned in this paper, concluding that overall state of research on laser application in surface engineering in Poland was well developed and still growing industrial application is observed.
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Experimental and numerical investigation of an electromagnetic weld pool support system for high power laser beam welding of austenitic stainless steel
TL;DR: In this article, a three-dimensional turbulent steady state numerical model was used to investigate the influence of an alternating current (AC) magnetic field during high power laser beam keyhole welding of 20mm thick stainless steel AISI 304 being modeled as an ideal non-ferromagnetic material.
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2D modelling of clad geometry and resulting thermal cycles during laser cladding
Wei Ya,B. Pathiraj,Shaojie Liu +2 more
TL;DR: In this article, a 2D thermal model of laser cladding process based on mass and energy balance is built incorporating the powder efficiency and solved with the finite element software COMSOL MULTIPHYSICS® v4.4.