Investigation on disk and CO2 laser beam fusion cutting differences based on power balance equation

Scintilla, Leonardo Daniele; Tricarico, Luigi; Wetzig, Andreas; Beyer, Eckhard

doi:10.1016/j.ijmachtools.2013.02.008

Cited by 36 publications

(13 citation statements)

References 51 publications

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“…Experimental data on cutting of various metals mainly with nitrogen used as a process gas are available (a detailed review can be found in [1]). It is known that solid-state lasers ensure a greater velocity of cutting of thin sheets than CO 2 lasers with the same power in the case of cutting with an inert process gas; for instance, for a sheet thickness of 1-2 mm, the difference in the cutting velocity is expressed by a factor of 3-4 [2,3].…”

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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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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“…One reason why the specific evaporation energy discovered here is considerably lower than those suggested by other workers is due to the effect of the flushing gas. The flushing gas used by Harris and Brandt [10] was not directed at the laser-acrylic interaction zone and was therefore probably only partially effective, and Scintilla et al [9,14] did not use a flushing gas at all.…”

Section: 2mentioning

confidence: 99%

“…This allowed the use of acrylic for quantitative measurements of laser beam power and, via the use of energy balance equations [6], primary laser beam power losses during laser cutting [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

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Fiber laser cutting: The use of carbon-filled acrylic as a qualitative and quantitative analysis tool

Atiyah

Powell

Petring

et al. 2018

Journal of Laser Applications

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The use of carbon filled black acrylic (CFBA) as a quantitative and qualitative analytical tool for fibre laser cutting is investigated. In the qualitative work CFBA targets placed below the laser cutting zone when cutting stainless steel showed a distinctive 'leaf' shaped evaporation crater which can provide information about the nature of the reflections taking place in the cut zone. Quantitative measurements have revealed a specific evaporation energy of 3.4J/mm 3 for CFBA. However, this figure is only applicable when considering intense beams when the CFBA target is stationary with respect to the laser beam.

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“…Multiple experiments show that the cutting results by two types of lasers differ in basic characteristics, namely, cutting speed and cut quality. Rather extensive reference review on the metal materials cutting by the fiber laser is presented in 1 . Fiber lasers have advantage in the cutting speed of thin sheets, whereas СО 2 lasers provide higher cut quality in the thick-sheets case.…”

Section: Introductionmentioning

confidence: 99%

Experimental comparison of the cutting speed and quality for mild and stainless steel sheets with fiber and CO₂lasers

et al. 2014

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The laser cutting of the low-carbon and stainless steel with fiber and CO 2 lasers was compared by a similar technique. The dependence of the cut surface roughness on cutting parameters was analyzed for stainless steel sheets of 3 and 5 mm and mild steel sheets of 5, 10, 16 mm. The speed at which the roughness is minimal was found. For the cutting of stainless steel with nitrogen, the minimal achieved roughness is approximately similar for two types of lasers, whereas the speed correlating with the minimal roughness was higher in the fiber-laser case. When cutting the mild steel with oxygen, the СО 2 laser enables to reach lower roughness at higher cutting speed. For the oxygen-assisted laser cutting, the empirical relations were found which connect the cutting speed and laser power associated with the minimal roughness, with the cut sheet thickness, for the cutting processes by the fiber and СО 2 -laser.

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Investigation on disk and CO2 laser beam fusion cutting differences based on power balance equation

Cited by 36 publications

References 51 publications

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

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

Fiber laser cutting: The use of carbon-filled acrylic as a qualitative and quantitative analysis tool

Experimental comparison of the cutting speed and quality for mild and stainless steel sheets with fiber and CO₂lasers

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Investigation on disk and CO2 laser beam fusion cutting differences based on power balance equation

Cited by 36 publications

References 51 publications

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

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

Fiber laser cutting: The use of carbon-filled acrylic as a qualitative and quantitative analysis tool

Experimental comparison of the cutting speed and quality for mild and stainless steel sheets with fiber and CO2lasers

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Product

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Experimental comparison of the cutting speed and quality for mild and stainless steel sheets with fiber and CO₂lasers