Dust Creation in CNC Drilling of Wood Composites

Rogoziński, Tomasz; Wilkowski, Jacek; Górski, J.; Czarniak, P.; Podziewski, Piotr; Szymanowski, Karol

doi:10.15376/biores.10.2.3657-3665

Cited by 26 publications

(23 citation statements)

References 9 publications

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“…Sanding dust particulates are minute and of complex composition, and are more hazardous to humans than the cutting dust particulates [54]. Wood dust particles ( Figure 2) are normally generated in different sizes [12,55]. The percentages of particle sizes start from the size of 500 µm (Table 3).…”

Section: Results Of Particle Sizes (Fractions) Of Dust Samplesmentioning

confidence: 99%

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Tropical Wood Dusts—Granulometry, Morfology and Ignition Temperature

et al. 2020

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The article considers the granulometric analysis of selected samples of tropical wood dust from cumaru (Dipteryx odorata), padauk (Pterocarpus soyauxii), ebony (Diospyros crassiflora), and marblewood (Marmaroxylon racemosum) using a Makita 9556CR 1400 W grinder and K36 sandpaper, for the purpose of selecting the percentages of the various fractions (<63; 63; 71; 200; 315; 500 μm) of wood dust samples. Tropical wood dust samples were made using a hand orbital sander Makita 9556CR 1400 W, and sized using the automatic mesh vibratory sieve machine Retsch AS 200 control. Most dust particles (between 50–79%) from all wood samples were under 100 μm in size. This higher percentage is associated with the risk of inhaling the dust, causing damage to the respiratory system, and the risk of a dust-air explosive mixture. Results of granulometric fractions contribution of tropical woods sanding dust were similar. Ignition temperature was changed by particle sizes, and decreased with a decrease in particle sizes. We found that marblewood has the highest minimum ignition temperature (400–420 °C), and padauk has the lowest (370–390 °C).

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Section: Results Of Particle Sizes (Fractions) Of Dust Samplesmentioning

confidence: 99%

“…During wood processing, dust is created as a by-product [1][2][3][4][5][6][7], and plays a negative role in assessing the risk of fire [8] or explosion [9][10][11][12][13][14]. Wood fust also poses a significant risk to the health of the human body [15,16].…”

Section: Introductionmentioning

confidence: 99%

Tropical Wood Dusts—Granulometry, Morfology and Ignition Temperature

et al. 2020

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“…A determination of the content of the finest particles in the waste generated during the milling of thermally modified wood was carried out in accordance with the methodology adopted in previous studies of this type . Dust created during the plane milling of thermally modified pine wood was extracted isokinetically from machines.…”

Section: Methodsmentioning

confidence: 99%

“…Particle size measurement of the dust taken from milling to determine the content of the smallest particles could not be done by laser particle sizers because there were too many particles whose dimensions were too large and out of range of the laser particle sizers. Therefore, the dust below the sieve of 0.063 mm collected in a bottom holder was taken for measurement and the mass of this dust fraction was considered in the calculations . A set of sieves was used for sieving chips from the plane milling.…”

Section: Methodsmentioning

confidence: 99%

The influence of the thermal modification of pine (Pinus sylvestris L.) wood on the creation of fine dust particles in plane milling

Piernik

Rogoziński

Krauss

et al. 2019

Journal of Occupational Health

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Objectives The aim of the study was to determine the effect of parameters of the thermal modification process and machining on the size distribution of dust particles of Scots pine (Pinus sylvestris L.) generated during lengthwise milling. Method Unmodified wood and thermally modified wood at temperatures of 130, 160, 190, and 220°C were milled lengthwise at cutting depths of 0.5 and 2 mm. Particle size analysis was done using the sieving method. The content of the finest particles was measured using the laser diffraction method. Results The results indicate that at smaller cutting depths, more smaller particles were formed regardless of the wood modification temperature. Thermal treatment of wood does not cause significant differences in the general particle size distribution of dust. However, the content of the finest dust particles depends on the temperature of wood modification. When machined, wood thermally modified at higher temperatures results in the formation of more dust particles that may pose health risks to employees. This is particularly noticeable at a smaller cutting depth. Conclusion With the increase of the temperature of the modification, the share of the finest dust particles, which are a potential threat to the health of employees, increases. To reduce dust emissions during milling of thermally modified wood, the highest possible cutting depth should be used.

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“…In terms of technology, milling is defined as the process of material machining with a rotary tool, either with a milling blade or milling head, and is characterized by chip production, where the chip thickness varies from minimum to maximum thickness and vice versa (Wyeth et al 2009;Kubš and Kminiak 2017). The quality of milled surfaces is significantly higher than that of sawn surfaces (Rogozinski et al 2015;Očkajová et al 2016Očkajová et al , 2018Rogozinski et al 2017;Kučerka and Očkajová 2018). However, not even milling guarantees an ideal smooth surface, there is always a certain degree of roughness (Sedlecký 2017).…”

Section: Introductionmentioning

confidence: 99%

Effect of cutting conditions on quality of milled surface of medium-density fibreboards

Kminiak

Siklienka

Igaz

et al. 2019

BioRes

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The quality of milled surface medium-density fibreboards (MDF) and the effect of the wrong milling direction during the process of automatic milling in real conditions in practice (production machine, production tool, and material) are presented in the paper. Moreover, the effect of the double vs. single bladed milling cutter on the final surface quality with the simultaneous changes in individual parameters of feed rate, thickness of the removed layer, and cutting direction was investigated. The MDF was separated using the strategy “one per pass“ with required cutting direction (climb or conventional) and the required thick strips cutting off (4 mm to 16+ mm) at a constant operation speed of the milling cutter (n = 20000 min−1) and a changing feed rate from vf = 1 m/min−1 to vf = 5 m/min−1. The use of a multi-bladed milling cutter resulted in the higher quality of the milled surface in all cases (change in feed rate, thickness of removed layer, and cutting direction). The effect of the wrong milling direction during automatic milling was observed only for a single-bladed milling cutter used. An increase in surface roughness (Ra) occurred; therefore, using the double-bladed milling cutter, which was not associated with an increase in surface roughness, is recommended.

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Dust Creation in CNC Drilling of Wood Composites

Cited by 26 publications

References 9 publications

Tropical Wood Dusts—Granulometry, Morfology and Ignition Temperature

Tropical Wood Dusts—Granulometry, Morfology and Ignition Temperature

The influence of the thermal modification of pine (Pinus sylvestris L.) wood on the creation of fine dust particles in plane milling

Effect of cutting conditions on quality of milled surface of medium-density fibreboards

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