Surface quality measurement by contact and laser methods on thermally modified spruce wood after plain milling

Razaei, Fatemeh; Gaff, Milan; Sethy, Anil Kumar; Niemz, Peter; Kamboj, Gourav; Ditommaso, Gianluca; Corleto, Roberto; Das, Sumanta; Gašparík, Miroslav

doi:10.1007/s00170-020-05983-7

Cited by 7 publications

(3 citation statements)

References 31 publications

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“…The mentioned authors reported R a values of laser-cut specimens conditioned at 8%, 12%, and 18% as 11.1 µm, 13.4 µm, and 13.3 µm, respectively. This aligns with the ndings in the paper [41], which compares two methods of measuring surface pro les on saw-cut spruce specimens. Contactless method used for measuring the spruce specimens is more precise than the contact method, representing greater R a values.…”

Section: Surface Roughnesssupporting

confidence: 89%

“…It has been reported that at higher moisture content (MC), a signi cant portion of the energy is dedicated to water evaporation, thereby reducing the available energy for the thermochemical degradation essential for material combustion [41]. The correlation between wood MC and laser processing parameters has been extensively discussed in various literature sources [16, 2, 44, 45].…”

Section: Surface Roughnessmentioning

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 Roughnesssupporting

confidence: 89%

Section: Surface Roughnessmentioning

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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“…Hernández et al [19] reported that the proportion of defect-free boards from the planing process increased as the rake angle decreased from 30 • to 15 • . Similar results were also reported by other studies with different parameters tested [20][21][22]. On the contrary, Cáceres et al [23] reported that the roughness obtained from the orthogonal cutting decreased as the rake angle increased from 10 • to 40 • .…”

Section: Introductionsupporting

confidence: 86%

The Role Played by the Rake Angle of a Strander-Canter When Processing Jack Pine Logs

Alipraja,

Hernández,

Koubaa

2023

Forests

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The optimization of the machining parameters of strander-canting is the best way to obtain the optimum strand size, a better quality of the cant surface, and lower energy consumption. The effect of the rake angle on the performance of a strander-canter when processing jack pine logs was evaluated. Thirty-nine logs were cut with three rake angles (59°, 64°, and 69°). The counter-knife angle used in this study was 20° for frozen logs and 35° for unfrozen logs. The cutting speed and width were fixed at 25 m/s and 20 mm, respectively. The results showed that the rake angle affected the strand width, strand proportion, and energy requirements to transform the logs under frozen conditions. The rake angle of 64° produced a higher proportion and larger strands with less energy consumption than the rake angle of 59°. However, using a rake angle of 64° produced poorer surface quality. On the other hand, the effect of the rake angle on the processing of unfrozen logs was only noticeable when the rake angle changed to 69°. The proportion of pin chips increased, and the surface quality became poorer as the rake angle changed from 59° to 69°. The rake angle did not affect energy consumption when transforming the logs under unfrozen conditions.

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Effect of moisture content levels on the quality of beech wood cut by CO2 laser

Corleto,

Gaff,

Rezaei

et al. 2024

Int J Adv Manuf Technol

View full text Add to dashboard Cite

The moisture content of wood in uences its machinability and the resulting quality of the machined surface. This study aims to explore the impact of varied moisture content on the nal quality of beech wood cut by a CO 2 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 pro lometer 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 ndings revealed that surface specimens with higher moisture content are lighter than those with lower moisture content. Speci cally, the top areas of specimens with different moisture content exhibited lighter shades than those in the middle and bottom areas. Notably, the surface pro le of the specimens remained unaffected by variations in moisture content levels.

show abstract

Surface quality measurement by contact and laser methods on thermally modified spruce wood after plain milling

Cited by 7 publications

References 31 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

The Role Played by the Rake Angle of a Strander-Canter When Processing Jack Pine Logs

Effect of moisture content levels on the quality of beech wood cut by CO2 laser

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