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Material Removal in Mycelium-Bonded Composites Through Laser Processing

cris.lastimport.wos2025-10-23T06:55:25Z
cris.virtual.author-orcid0000-0003-0076-3190
cris.virtual.author-orcid0000-0002-9531-0663
cris.virtual.author-orcid#PLACEHOLDER_PARENT_METADATA_VALUE#
cris.virtualsource.author-orcidbe4662f0-4144-45b2-96f7-33f2859e6d5e
cris.virtualsource.author-orcidc0086f1f-95ce-4e38-bbec-1b0409f8f2b0
cris.virtualsource.author-orcid#PLACEHOLDER_PARENT_METADATA_VALUE#
dc.abstract.enMycelium-bonded composites (MBCs), or myco-composites, represent a novel engineered material that combines natural lignocellulosic substrates with a fungal matrix. As a sustainable alternative to plastics, MBCs are gaining increasing interest; however, their large-scale industrial adoption remains limited, partly due to low social acceptance resulting from their unattractive appearance. Laser engraving provides a promising method for fabricating intricate patterns and functional surfaces on MBCs, minimizing tool wear, material loss, and environmental impact, while enhancing esthetic and engineering properties. This study investigates the influence of CO2 laser parameters on the material removal rate during the engraving of myco-composites, focusing on the effects of variable laser power, beam defocus, and head feed rate on engraving outcomes. The results demonstrate that laser power and beam focus significantly impact material removal in mycelium-bonded composites. Specifically, increasing the laser power results in greater material removal, which is more pronounced when the beam is focused due to higher energy density. In contrast, a beam defocused by 1 mm produces less intense material removal. These findings highlight the critical role of beam focus—surpassing the influence of power alone—in determining engraving quality, particularly on irregular or uneven surfaces. Moreover, reducing the laser head feed rate at a constant power level increases the material removal rate linearly; however, it also results in excessive charring and localized overheating, revealing the low thermal tolerance of myco-composites. These insights are essential for optimizing laser processing techniques to fully realize the potential of mycelium-bonded composites as sustainable engineering materials, simultaneously maintaining their appearance and functional properties.
dc.affiliationWydział Leśny i Technologii Drewna
dc.affiliation.instituteKatedra Obrabiarek i Podstaw Konstrukcji Maszyn
dc.contributor.authorSydor, Maciej
dc.contributor.authorPinkowski, Grzegorz
dc.contributor.authorBonenberg, Agata
dc.date.access2025-08-18
dc.date.accessioned2025-08-18T12:08:28Z
dc.date.available2025-08-18T12:08:28Z
dc.date.copyright2025-07-23
dc.date.issued2025
dc.description.abstract<jats:p>Mycelium-bonded composites (MBCs), or myco-composites, represent a novel engineered material that combines natural lignocellulosic substrates with a fungal matrix. As a sustainable alternative to plastics, MBCs are gaining increasing interest; however, their large-scale industrial adoption remains limited, partly due to low social acceptance resulting from their unattractive appearance. Laser engraving provides a promising method for fabricating intricate patterns and functional surfaces on MBCs, minimizing tool wear, material loss, and environmental impact, while enhancing esthetic and engineering properties. This study investigates the influence of CO2 laser parameters on the material removal rate during the engraving of myco-composites, focusing on the effects of variable laser power, beam defocus, and head feed rate on engraving outcomes. The results demonstrate that laser power and beam focus significantly impact material removal in mycelium-bonded composites. Specifically, increasing the laser power results in greater material removal, which is more pronounced when the beam is focused due to higher energy density. In contrast, a beam defocused by 1 mm produces less intense material removal. These findings highlight the critical role of beam focus—surpassing the influence of power alone—in determining engraving quality, particularly on irregular or uneven surfaces. Moreover, reducing the laser head feed rate at a constant power level increases the material removal rate linearly; however, it also results in excessive charring and localized overheating, revealing the low thermal tolerance of myco-composites. These insights are essential for optimizing laser processing techniques to fully realize the potential of mycelium-bonded composites as sustainable engineering materials, simultaneously maintaining their appearance and functional properties.</jats:p>
dc.description.accesstimeat_publication
dc.description.bibliographyil., bibliogr.
dc.description.financepublication_nocost
dc.description.financecost0,00
dc.description.if3,7
dc.description.number8
dc.description.points20
dc.description.versionfinal_published
dc.description.volume9
dc.identifier.doi10.3390/jcs9080389
dc.identifier.issn2504-477X
dc.identifier.urihttps://sciencerep.up.poznan.pl/handle/item/4262
dc.identifier.weblinkhttps://www.mdpi.com/2504-477X/9/8/389
dc.languageen
dc.relation.ispartofJournal of Composites Science
dc.relation.pagesart. 389
dc.rightsCC-BY
dc.sciencecloudsend
dc.share.typeOPEN_JOURNAL
dc.subject.ensustainable materials
dc.subject.enmycelium-based composites
dc.subject.enlaser engraving
dc.subject.enlaser beam machining
dc.subject.enlaserable materials
dc.subject.enmaterial removal rate
dc.subject.enCO2 laser
dc.titleMaterial Removal in Mycelium-Bonded Composites Through Laser Processing
dc.title.volumeSpecial Issue Advances in Laser Fabrication of Composites
dc.typeJournalArticle
dspace.entity.typePublication
oaire.citation.issue8
oaire.citation.volume9