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Effects of laser drilling on mechanical properties and impregnability of fir and spruce wood

Voulgaridis Elias , Adamopoulos Stergios, Karastergiou Sotirios , Passialis Costas , Koutsianitis Dimitrios, Kortsalioudakis Nathanail, Petrakis Panagiotis, Moustaizis Stavros

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URIhttp://purl.tuc.gr/dl/dias/980341AA-45B8-4220-AB46-0A13A608CF40-
Languageen-
TitleEffects of laser drilling on mechanical properties and impregnability of fir and spruce wooden
CreatorVoulgaridis Elias en
CreatorAdamopoulos Stergiosen
CreatorKarastergiou Sotirios en
CreatorPassialis Costas en
CreatorKoutsianitis Dimitriosen
CreatorKortsalioudakis Nathanailen
CreatorΚορτσαλιουδακης Ναθαναηλel
CreatorPetrakis Panagiotisen
CreatorΠετρακης Παναγιωτηςel
CreatorMoustaizis Stavrosen
Content SummaryFir (Abies borisii regis) and spruce (Picea excelsa) wood specimens, 2 × 2 cm in cross section and 34 cm long, were prepared with true radial and tangential surfaces. All lateral surfaces of the specimens were drilled by laser to a depth of 4 mm (1/5 of specimen thickness) with two drilling patterns (distance between holes 1 × 1 cm and 1 × 2 cm). ). After drilling, the mechanical strength of wood (MOE, MOR, axial compression, toughness) was determined and compared with non-drilled controls. MOE was not affected by the laser drilling, MOR was significantly increased, axial compression was increased and toughness was decreased but not significantly. The overall results imply that strength properties do not decline by the laser drilling. Furthermore, wood specimens were impregnated with rape oil and CCB preservatives by applying vacuum (0.6 mmHg) and pressure (1,5 bars) for 15 minutes and 30 minutes, respectively. The results showed that both drilling patterns improved the retention and penetration of preservatives in fir and spruce wood specimens and, thus, are encouraging for further evaluating the drilling effects on the liquid permeability of these refractory to impregnation species. This effect was more pronounced in fir than in spruce wood. en
Type of ItemΔημοσίευση σε Συνέδριοel
Type of ItemConference Publicationen
Licensehttp://creativecommons.org/licenses/by/4.0/en
Date of Item2015-11-08-
Date of Publication2014-
SubjectLaser percussion drillingen
Subjectlaser drillingen
Subjectlaser percussion drillingen
Bibliographic CitationE. Voulgaridis, S. Adamopoulos, S. Karastergiou, C. Passialis, D. Koutsianitis, N. Kortsalioudakis, P. Petrakis and S. Moustaizis, "Effects of laser drilling on mechanical properties and impregnability of fir and spruce wood", in The 7th International Scientific and Technical Conference, “Innovations in Forest Industry and Engineering Design, 2014.en

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