Effect of Selected Parameters on the Surface Waviness in Plane Milling of Thermally Modified Birch Wood

Gaff, Milan; Kvietková, Monika; Gašparík, Miroslav; Kaplan, Lukáš; Barcík, Štefan

doi:10.15376/biores.10.4.7618-7626

Cited by 24 publications

(21 citation statements)

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“…Generally, Pt increased with the feed speed, and it was smaller when a lower cutting speed was used. This result was comparable to the findings of Gaff et al (2015), who measured the waviness as expressed by the Wa (arithmetical mean deviation of the waviness profile) parameter for plane milling of birch wood. Wa is similar to Ra, but applies to the waviness profile.…”

Section: Surface Roughnesssupporting

confidence: 89%

Milling of Heat-Treated Beech Wood (Fagus sylvatica L.) and Analysis of Surface Quality

Ispas¹,

Gurău²,

Câmpean³

et al. 2016

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Several previous studies have investigated the effects of heat treatment on the chemical composition, along with the physical and mechanical properties, of wood from various species. However, the effects of these property changes upon the machining properties and surface quality of machined wood have been studied much less. The main goal of this work was to investigate the comparative cutting power consumption during milling and the resulting surface roughness of heat-treated and untreated beech wood (Fagus sylvatica L.). Several cutting regimes were tested by combining different values of rotation speed, feed speed, and cutting depth. The cutting power and the processing roughness were assessed and compared. The results clearly showed that the cutting power involved in the milling of heat-treated beech wood was up to 50% lower than that of untreated wood, but the processing roughness was slightly higher.

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Section: Surface Roughnesssupporting

confidence: 89%

Milling of Heat-Treated Beech Wood (Fagus sylvatica L.) and Analysis of Surface Quality

Ispas¹,

Gurău²,

Câmpean³

et al. 2016

BioResources

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“…Barcík et al (2014) found the maximal surface roughness at a temperature of 210 °C and 240 °C at that feed rate, but the values were approximately one half of those. Kvietková et al (2015a) and Gaff et al (2015) also found the same effect of feed rate on the wood surface roughness.…”

Section: Fig 8 Analysis Of Variance For the Dependence Of Surface Rmentioning

confidence: 61%

“…On the sample without thermal treatment, the best surface finish was at a cutting speed of 40 m·s -1 . Barcík et al (2014), Kvietková et al (2015a), and Gaff et al (2015) also confirmed the fact that the increased cutting speed reduced the surface roughness. …”

Section: Effect Of Cutting Speed On the Surface Roughnessmentioning

confidence: 72%

Impact of Selected Technological, Technical, and Material Factors on the Quality of Machined Surface at Face Milling of Thermally Modified Pine Wood

et al. 2017

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The impact of technical and technological parameters on the quality of machining during milling of thermally modified pine wood (Pinus sylvestris L.) was studied. Experiments were conducted to evaluate the effects of tools (α = 30°, β = 45°, γ = 15°, 20°, and 30°), material (natural material, thermally treated at 160 °C, 180 °C, 210 °C, and 240 °C), and technological factors, such as cutting speed (20 m.min ) on the quality of the machined surface (standard deviation of surface Ra). The roughness measurements were realized by a non-contact method using a laser. This paper aimed to highlight which one of the technological or tool factors had the greatest impact on the quality of the surface of heat-treated wood in face milling. The importance of the parameters impact on surface quality was in the following order: rake angle, feed rate, thermal treatment, and cutting speed.

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“…), and the produced wood chips (size, grain size distribution, etc.) depend on the physical and mechanical properties of the machined material; the shape, size, number of teeth, geometry, sharpness of the cutting tool; and the technical and technological conditions of the machining process (Kilic et al 2006;Barcík and Gašparík 2014;Krilek et al 2014;Gaff et al 2015;Kvietková et al 2015;Gaff et al 2016).…”

Section: Introductionmentioning

confidence: 99%

Cutting Power during Cross-Cutting of Selected Wood Species with a Circular Saw

Kminiak¹,

Kubš²

2016

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This study assessed the effect of selected factors, such as the feed force (Ff = 15, 20, and 25 N), wood species (beech (Fagus sylvatica L.), English oak (Quercus robur L.), and spruce (Picea abies L.)), and the number of saw blade teeth (z = 24, 40, and 60) on cutting power in the cross-cutting of lumber. The cutting was done using a circular saw with a rotating motion of the saw blade at a constant cutting speed (vc) of 62 m.s -1 . The tangentially bucked lumber had a relative humidity (wr) of 12% ± 1% and a thickness (e) of 50 mm. For the experiment, four circular saw blades with SK plates, a uniform diameter (D = 250 mm), and identical angular geometry (angle of clearance (α) = 15°, wedge angle (β) = 60°, and rake angle (γ) = 15°) were used. The saw blades had a different number of teeth (z = 24, 40, and 60), and one saw blade had 24 teeth and a chip limiter. The aim of this study was to expand the knowledge about the resulting cutting performance with different combinations of technological process parameters.

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Effect of Selected Parameters on the Surface Waviness in Plane Milling of Thermally Modified Birch Wood

Cited by 24 publications

References 0 publications

Milling of Heat-Treated Beech Wood (Fagus sylvatica L.) and Analysis of Surface Quality

Milling of Heat-Treated Beech Wood (Fagus sylvatica L.) and Analysis of Surface Quality

Impact of Selected Technological, Technical, and Material Factors on the Quality of Machined Surface at Face Milling of Thermally Modified Pine Wood

Cutting Power during Cross-Cutting of Selected Wood Species with a Circular Saw

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