Laser cutting of composite sandwich structures

Krot, Kamil; Chlebus, Edward; Kuźnicka, Bogumiła

doi:10.1016/j.acme.2016.12.007

Cited by 10 publications

(4 citation statements)

References 18 publications

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“…These compounds were probably products of oxidation of polystyrene. Qualitative analysis of gases emitted during cutting showed presence of benzene, butanol, cyclohexane, and vinyl acetate but in trace quantities impossible to be determined [67].…”

Section: Volatile Organic Compoundsmentioning

confidence: 98%

“…Then, the heat energy allows the workpiece surface to quickly reach the boiling temperature and form a key chain on its surface. In addition, under the action of surface oxidation, the absorption rate is greatly improved, and the ejected steam effectively blows away a large amount of molten material, promoting the material to vaporize into a notch [67][68][69]. Aden et al [70] investigated the vaporization process for steel and aluminum using theoretical methods.…”

Section: Vaporization Cuttingmentioning

confidence: 99%

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Laser Cutting Technologies and Corresponding Pollution Control Strategy

Xie

et al. 2022

Processes

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In conjunction with the increasing demand for material cutting, such as the decommissioning and dismantling of nuclear facilities, advanced cutting technologies need be developed to increase precision and cost-effectiveness. As compared with other cutting technologies, laser cutting offers advantages of greater cutting precision, accuracy, and customization. In this work, we investigated the constitution, classification, and current status of this technology. Pollutant emission during laser cutting, corresponding pollution control methods and apparatus were proposed as well. Laser cutting equipment mainly comprises an automated system integrating a fiber laser, industrial computer, servo motor control, electrical control, and detection technology. It mainly consists of mechanical and electrical control parts. Laser cutting equipment is distinguished by light source, power, and cutting dimensions. Known variants of laser cutting technology involve vaporization, fusion, reactive fusion, and controlled fracture cutting. During the cutting process, dust, smoke, and aerosols can be released, which is an environmental concern and poses a threat to public health. The selection of the dedusting method and design of apparatus should take into account the dust removal rate, initial capital cost, maintenance cost, etc. Multi-stage filtration such as bag filtration combined with activated carbon filtration or electrostatic filtration is accepted.

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Section: Volatile Organic Compoundsmentioning

confidence: 98%

Section: Vaporization Cuttingmentioning

confidence: 99%

Laser Cutting Technologies and Corresponding Pollution Control Strategy

Xie

et al. 2022

Processes

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“…With this technology, it is possible to produce variously shaped components of high precision and with a clean edge of cut [2]. Laser cutting can serve for materials disassembly in waste management too [3,4]. In fact, laser beam irradiation is also used in other metallurgical technologies, such as welding processes [5] or laser surface alloying, which can improve material properties (e.g., increase its hardness) [6].…”

Section: Introductionmentioning

confidence: 99%

Analysis of Stainless Steel Waste Products Generated during Laser Cutting in Nitrogen Atmosphere

Zubko

Loskot

Świec

et al. 2020

Metals

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Laser cutting technology is one of the basic approaches used for thermal processing of parts fabricated from almost all engineering materials. Various types of lasers are utilized in the industry with different attendant gases such as nitrogen or argon. When the laser beam interacts with a metal surface, the area underneath is heated to the melting point. This liquid or vaporized metal is ejected from the kerf area to the surrounding atmosphere by attendant gas and becomes undesirable waste in the form of powder. In the presented work, the X-ray diffraction, scanning electron microscopy, electron backscatter diffraction, transmission electron microscopy, and energy-dispersive X-ray spectroscopy methods were used to analyze AISI 304 stainless steel, which was cut by a semiconductor fiber laser, and the waste powder generated during the laser cutting process. The results suggest that this waste material may be reused for industrial applications such as additive manufacturing.

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“…A widespread usage of this technology is machining of metallic materials, such as steels or non-ferrous metal alloys. Laser cutting enables to produce components of various shapes with a clean cut edge [4], but it is also applied, for example, in waste management where it serves to disassemble discarded products [5,6]. It is worth mentioning that laser beam irradiation is also used in other manufacturing technologies, for example, in welding processes [7], sintering, turning, milling [1] or in laser surface alloying, which can enhance material properties (e. g., it can improve its hardness) [8].…”

Section: Introductionmentioning

confidence: 99%

Analyses of Waste Products Obtained by Laser Cutting of Aw-3103 Aluminium Alloy

Loskot

Zubko

Janikowski³

2020

Acta Polytech

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In the presented research, the methods of scanning electron microscopy, energy-dispersive X-ray spectroscopy, X-ray diffraction and transmission electron microscopy were applied to analyse the powder waste obtained by cutting of AW-3103 aluminium alloy using a fibre laser. The scanning electron microscopy allows to analyse the morphology of the waste microparticles, the energy-dispersive X-ray spectroscopy revealed their chemical composition, which was compared with the composition of the original cut material. In the waste powder, mainly plate-like particles were observed that contain almost pure aluminium. X-ray powder diffraction measurements confirmed that the waste powder is composed of aluminium phase with only a slight presence of other phases (magnetite, austenite and graphite) and the transmission electron microscopy revealed the presence of nanoscale particles in this waste powder. Furthermore, it was found that the average size of the microparticles depends on the thickness of the cut material: particles obtained from a thicker workpiece were substantially bigger than those obtained from the thinner material. On the contrary, the dimensions of the workpiece have only a little impact on the particles’ shape and no significant influence on their chemical composition. The results also suggest that the microparticles could be used as an input material for powder metallurgy. But there is also a certain health risk connected with inhalation of such tiny particles, especially the nanoparticles, which can penetrate deep into the human pulmonary system.

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Laser cutting of composite sandwich structures

Cited by 10 publications

References 18 publications

Laser Cutting Technologies and Corresponding Pollution Control Strategy

Laser Cutting Technologies and Corresponding Pollution Control Strategy

Analysis of Stainless Steel Waste Products Generated during Laser Cutting in Nitrogen Atmosphere

Analyses of Waste Products Obtained by Laser Cutting of Aw-3103 Aluminium Alloy

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