Parameterization of hybrid laser-assisted oxygen cutting of thick steel plates

Ermolaev, G. V.; Ковалев, О. Б.; Зайцев, А. В.

doi:10.1016/j.optlastec.2012.08.013

Cited by 8 publications

(3 citation statements)

References 13 publications

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“…Laserassisted oxygen cutting was studied by O'Neill and Gabzdyl (O'Neill and Gabzdyl, 2000) who reported input (exothermic) powers ranging from 13 to 23 kW depending on plate thickness and cutting speed. Finally, Ermolaev et al (Ermolaev, 2013) carried out a theoretical and experimental study for hybrid laser-assisted oxygen cutting of mild steel sheets but did not report specifically heat input powers. Among the very few studies addressing the steady state heat flow in steel flame cutting, the work of Lindgren et al (1983) is the first one to combine a computational approach with measurements for 50 mm thick plates cut at 4.83 mm/s.…”

Section: Introductionmentioning

confidence: 99%

Experimental and numerical characterisation of heat flow during flame cutting of thick steel plates

Thiébaud

Drezet

Lebet

2014

Journal of Materials Processing Technology

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a b s t r a c tTemperatures measurements during flame cutting of a thick steel plate and measurements of the extension of the fusion and heat affected zones and Vickers hardness after cutting have been performed. Additionally, a 3-D thermal model for simulation of flame-cutting has been developed. For the sake of simplicity, the model depends only on two parameters: (i) the heat density within the flame, and (ii) the heat transfer coefficient within the air gap that forms behind the cut. The results show that the model is able to properly reproduce the measured temperature curves and the heat affected zone with an input power in the same range of those reported in the literature. A process efficiency of 26.5% is found in the steady state regime of flame-cutting.

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Section: Introductionmentioning

confidence: 99%

Experimental and numerical characterisation of heat flow during flame cutting of thick steel plates

Thiébaud

Drezet

Lebet

2014

Journal of Materials Processing Technology

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“…These investigations enabled the determination of the fraction of the oxidised iron in the melt and thermal efficiency during cutting with minimal roughness. Theoretical and experimental studies were also carried out by Ermolaev et al [7] on specific features of hybrid laser-assisted oxygen cutting of mild steel sheets with the thicknesses up to 50 mm and more. The authors proposed a method for analytical calculation of effective cutting parameters depending on the material thickness, nozzle geometry and range of oxygen pressure.…”

Section: Related Work and Motivationmentioning

confidence: 99%

Experimental investigations of the influence of laser beam and plasma arc cutting parameters on edge quality of high-strength low-alloy (HSLA) strips and plates

Klimpel

Cholewa

Bannister

et al. 2017

Int J Adv Manuf Technol

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The paper deals with experimental investigations of the influence of laser beam and plasma arc cutting parameters on edge quality of a range of steel grades and thicknesses. Based on the experimental results, a variety of methods have been taken to carry out the analysis of influence of laser beam and plasma arc cutting parameters on the quality and mechanical properties of cut edges of selected high-strength low-alloy (HSLA) strips and plates. In this study, three approaches were investigated corresponding to rank correlation analysis, multidimensional data analysis and decision trees. These techniques were able to elucidate the most relevant cutting parameters as well as the optimal field of values of these parameters to give the required geometrical and mechanical quality levels. As a result of this study, general rules in the form of cutting procedure specifications were established. This was needed to describe the relation between laser beam or plasma arc cutting parameters and the geometrical and mechanical quality factors of cut edges of different medium-and high-strength steel materials. The proposed rules can be also adopted for providing a comparison between the surface qualities achievable by the different combinations of cutting parameters for laser beam and plasma arc cutting processes of medium-and high-strength steels.

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“…Ermolaev et al [13] firstly studied the effect of nozzle structure on the cut velocity and quality. Through three-dimensional simulations of a model kerf, it was found that the gas dynamics inside a wide cut kerf is more like a free jet into the atmosphere.…”

Section: Introductionmentioning

confidence: 99%

Evaluation and optimal design of supersonic nozzle for laser-assisted oxygen cutting of thick steel sections

Zhang

Wen

Yuan

et al. 2016

Int J Adv Manuf Technol

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Parameterization of hybrid laser-assisted oxygen cutting of thick steel plates

Cited by 8 publications

References 13 publications

Experimental and numerical characterisation of heat flow during flame cutting of thick steel plates

Experimental and numerical characterisation of heat flow during flame cutting of thick steel plates

Experimental investigations of the influence of laser beam and plasma arc cutting parameters on edge quality of high-strength low-alloy (HSLA) strips and plates

Evaluation and optimal design of supersonic nozzle for laser-assisted oxygen cutting of thick steel sections

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