Similarity of heat fluxes upon laser oxygen cutting of steel

Fomin, V. M.; Маликов, А. Г.; Orishich, A. M.; Shulyat'ev, Viktor B

doi:10.1134/s102833581101006x

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2015

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“…The problem of cutting optimization in terms of the minimum roughness criterion in the case of laser-oxygen cutting of steel sheets by a CO 2 laser was formulated and experimentally solved in [8][9][10][11][12]. The conditions of highquality cutting were formulated as similarity laws; moreover, the values of generalized dimensionless variables that ensure the minimum roughness were found.…”

Section: Introductionmentioning

confidence: 99%

Mechanical characteristics of high-quality laser cutting of steel by fiber and CO2 lasers

Fomin

Голышев

Маликов

et al. 2015

J Appl Mech Tech Phy

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The quality of cutting of low-carbon and stainless steel by beams of fiber and CO 2 lasers with oxygen or nitrogen being used as a process gas is compared. The cut surface roughness for sheets from 3 to 10 mm thick is determined. Domains of optimal (in terms of the minimum roughness criterion) application of lasers of various types in the space of dimensionless parameters (Peclet number and dimensionless power) are found. It is demonstrated that the CO 2 laser is more effective for laser-oxygen cutting, while the fiber laser is more beneficial for cutting with the use of a neutral gas.

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