Interactions of monitored factors upon tensile glue shear strength on laser cut wood

Gaff, Milan; Razaei, Fatemeh; Síkora, Adam; Hýsek, Štěpán; Sedlecký, Miroslav; Ditommaso, Gianluca; Corleto, Roberto; Kamboj, Gourav; Sethy, Anil Kumar; Vališ, Michal; Řipa, Kamil

doi:10.1016/j.compstruct.2019.111679

Cited by 15 publications

(10 citation statements)

References 11 publications

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“…The data presented in the gure clearly illustrate that moisture content has no statistically signi cant effect on the value of the ripple pro le (W a ) of the specimens. This result aligns with a prior study conducted on both beech and oak wood [9]. The authors reported a signi cant effect only in oak with a moisture content higher than FSP, leading to a substantial reduction in surface waviness compared to laser cutting of dry wood (moisture content of 8%) due to its regular texture, in contrast to beech, which possesses a ne structure.…”

Section: Surface Wavinesssupporting

confidence: 89%

“…In order to achieve lower surface roughness, the cutting speed should be kept around 7 m/min, the assist gas pressure at 3 bar, and the power at an intermediate level of 0.9 kW [23]. Previous studies demonstrated the in uence of the focal point on cutting e ciency and suggested that a smooth surface with less charring is obtained when the focal point is in the center of the workpiece or slightly above it [9].…”

Section: Introductionmentioning

confidence: 99%

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Effect of Moisture Content Levels on the Quality of Beech Wood Cut by CO2 Laser

Corleto,

Gaff,

Ditommaso

et al. 2024

Preprint

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The moisture content of wood influences its machinability and the resulting quality of the machined surface. This study aims to explore the impact of varied moisture content on the final quality of beech wood cut by a CO2 laser (Fagus sylvatica L.). Laser cutting was performed on beech lumbers conditioned at moisture levels of 0%, 8%, 12%, and 18%. The Laser-cut specimens were evaluated for surface roughness and waviness by using a stylus surface profilometer at three measuring locations: top, middle, and bottom. The total color difference ΔE was also assessed using a spectrophotometer at the same three locations. The most intriguing findings revealed that surface specimens with higher moisture content are lighter than those with lower moisture content. Specifically, the top areas of specimens with different moisture content exhibited lighter shades than those in the middle and bottom areas. Notably, the surface profile of the specimens remained unaffected by variations in moisture content levels.

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Section: Surface Wavinesssupporting

confidence: 89%

Section: Introductionmentioning

confidence: 99%

Effect of Moisture Content Levels on the Quality of Beech Wood Cut by CO2 Laser

Corleto,

Gaff,

Ditommaso

et al. 2024

Preprint

Self Cite

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“…Lasers are mainly monochromatic non-contact forms with greater repeatability, scanning speed, versatility and automation. Laser beams alter the chemical composition of irradiated wood surfaces [15], [16]. Microscopic studies indicate that treating wood surfaces with a laser beam would make the surface smoother since the cells melt down to a depth of several micrometers without direct carbonization [17].…”

Section: Introductionmentioning

confidence: 99%

Technical study of the effect of laser engraving using uArm swift pro robot

Mondal

Dutta

2021

IJRA

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<p>Laser engraving is the most non - traditional and efficient working method in the machining of materials of different geometry as compared to conventional methods. The main objective of this study is to determine the impact of uArm swift pro robot operated laser engraving process on a wooden pitch board piece. However, the robot was connected with uArm Studio 1.1.22 software to perform laser engraving operation. For this purpose the effect of process parameters like spot diameter and depth of penetration were investigated with different working length of the robot end effector, measured from wooden pitch board base. Experimental observation method was used to investigate the formation of deep and light engraving pattern on the pitch board surface by measuring penetration depth and spot diameter in suitable condition. The result obtained from the experiment and statistical parameters showed a new dimension to find a suitable working length of the robot assisted laser nozzle where the laser penetration effect was clearly perceptible for the wooden material.</p>

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“…In addition to cutting, CO 2 lasers are also used for the irradiation or engraving of a wood surface [13][14][15][16][17]. The main advantages of the laser cutting of wood in comparison with conventional cutting methods are the highly precise cut, flexibility to start and finish cutting at any point of the board, narrow kerf width (0.1-0.3 mm compared to saw cut of 3-6 mm), and extremely smooth surfaces [18][19][20][21][22][23]. Other advantages of laser wood cutting are the absence of tool wear, low noise emission and vibration, low sensitivity to very variable processing properties [23][24][25][26], reduced amount of sawdust [27][28][29][30][31], and low mechanical stress in the workpiece [32,33].…”

Section: Introductionmentioning

confidence: 99%

Optimization of Parameters for the Cutting of Wood-Based Materials by a CO2 Laser

et al. 2020

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This article deals with the laser cutting of wood and wood composites. The laser cutting of wood and wood composites is widely accepted and used by the wood industry (due to its many advantages compared to, e.g., saw cutting). The goal of this research was to optimize the cutting parameters of spruce wood (Pices abies L.) by a low-power CO2 laser. The influence of three factors was investigated, namely, the effect of the laser power (100 and 150 W), cutting speed (3, 6, and 9 mm·s−1), and number of annual rings (3–11) on the width of the cutting kerf on the top board, on the width of the cutting kerf on the bottom board, on the ratio of the cutting kerf width on the top and bottom of the board, on the width of the heat-affected area on both sides of the cutting kerf (this applies to the top and bottom of the board), and on the degree of charring. Analysis of variance (ANOVA) and correlation and regression analysis were used for developing a linear regression model without interactions and a quadratic regression model with quadratic interactions. Based on the developed models, the optimization of parameter settings of the investigated process was performed in order to achieve the final kerf quality. The improvement in the quality of the part ranged from 3% to more than 30%. The results were compared with other research dealing with the laser cutting of wood and wood composites.

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Interactions of monitored factors upon tensile glue shear strength on laser cut wood

Cited by 15 publications

References 11 publications

Effect of Moisture Content Levels on the Quality of Beech Wood Cut by CO2 Laser

Effect of Moisture Content Levels on the Quality of Beech Wood Cut by CO2 Laser

Technical study of the effect of laser engraving using uArm swift pro robot

Optimization of Parameters for the Cutting of Wood-Based Materials by a CO2 Laser

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