Effects of CO2 laser parameters on quality of laser cut beech wood (Fagus sylvatica L) surface and extent of heat affect zone

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41320%2F25%3A106305" target="_blank" >RIV/60460709:41320/25:106305 - isvavai.cz</a>

Alternative codes found

RIV/62156489:43410/25:43926302

Result on the web

<a href="https://link.springer.com/content/pdf/10.1007/s13196-024-00361-2.pdf?utm_source=clarivate&getft_integrator=clarivate" target="_blank" >https://link.springer.com/content/pdf/10.1007/s13196-024-00361-2.pdf?utm_source=clarivate&getft_integrator=clarivate</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s13196-024-00361-2" target="_blank" >10.1007/s13196-024-00361-2</a>

Result language

angličtina

Original language name

Effects of CO2 laser parameters on quality of laser cut beech wood (Fagus sylvatica L) surface and extent of heat affect zone

Original language description

Laser cutting of wood offers precision and speed advantages over traditional methods. This study investigates the effect of CO2 laser processing parameters such as position of focal point, cutting speed, and gas pressure on cut surface quality of beech wood (Fagus sylvatica L.), measured in terms of color change and surface roughness. Additionally, the extent of the heat-affected zone was assessed using FTIR spectroscopy and PCA analysis of FTIR spectra. All color coordinates (L*, a*, and b*) decreased after laser cutting, with the most significant reduction in the lightness index (L*), indicating a darkening of the surface. The total colour change (triangle E*) was primarily affected by the change in lightness index (triangle L*) and the contribution of triangle a* and triangle b* to Delta E * was very less. The color change was observed to be the lowest when the focal point was positioned one-third from the top surface. Surface roughness increased as the position of focal point moved from the surface towards the center of the sample, suggesting a deterioration in surface quality. Conversely, cutting speed and exhaust gas pressure did not affect surface quality. FTIR spectroscopy revealed changes in specific functional groups due to heat generation during laser cutting. However, chemical degradation was localized to the cut surface and did not affect regions even 200 mu m below the cut surface.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20502 - Paper and wood

Project

<a href="/en/project/EF16_019%2F0000803" target="_blank" >EF16_019/0000803: Advanced research supporting the forestry and wood-processing sector´s adaptation to global change and the 4th industrial revolution</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Publication year

2025

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of the Indian Academy of Wood Science

ISSN

0972-172X

e-ISSN

0972-172X

Volume of the periodical

22

Issue of the periodical within the volume

1

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

11

Pages from-to

67-77

UT code for WoS article

001380979200001

EID of the result in the Scopus database

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