Process Characteristics of Horizontal Log Band Saw in Cutting Frozen Beech

Siklienka, M.; Kminiak, Richard; Argay, Filip; Šafran, Branimir; Đukić, Igor

doi:10.5552/drind.2015.1412

Cited by 8 publications

(5 citation statements)

References 2 publications

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“…From the performed calculations, it is clear that both saw blades have a maximum of seven teeth in the engagement. The fact is that the first tooth in the cut takes the smallest chip and the last tooth the largest chip, which means that the individual teeth in the cut are not loaded with the same cutting force [4,[20][21][22].…”

Section: Calculation Of Cutting Forces On Individual Teeth Of the Saw...mentioning

confidence: 99%

“…With this process, we remove chips (sawdust), which happens when external cutting forces are applied, overcoming the strength of wood in compression and shear. The cutting wedges (teeth) of the saw blades are produced from different materials, such as tool steel EN 41 9418 (75Cr1), sintered carbide plates or stellite [9]. During the wood cutting, the saw blade teeth overheat, which is caused by several factors.…”

Section: Introductionmentioning

confidence: 99%

“…The main cutting edges form the bottom of the tooth groove [6]. Currently, the most frequently used materials for the cutting edges of saw blades are the so-called sintered carbide plates, SC blades, and HSS tool steel [4,9,10]. Saw blades with SC blades have 20 to 30 times higher cutting edge durability when sawing wood compared to HSS tool steel [12].…”

Section: Introductionmentioning

confidence: 99%

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Analysis of Cutting Forces in Cross-Sawing of Wood: A Study of Sintered Carbide and High-Speed Steel Blades

Krilek

Melicherčík

Kuvik

et al. 2023

Forests

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This research deals with the processing of wood using a circular saw, which is associated with several risks and factors that affect the wood-splitting process. One of them is the wear of the teeth of the saw blade that change the magnitude of the cutting forces. The aim of this study is to compare real measured values and theoretical values when processing Norway spruce wood using two types of saw blades, i.e., sintered carbide (SC) and high-speed steel (HSS), with a diameter of 600 mm and 54 and 56 teeth, respectively. Experimental measurements were carried out on a special test device with the possibility of moving the tested wood into the cutting devices and a simple saw blade replacement system. The results of the contributions show significant differences, based on defined factors which represent the cutting and feed speed, which are supported by FEM analysis of cutting forces in the process of cutting wood—when changing the design of the saw blade. The results of the experiment show that the cutting conditions (cutting speed and feed speed) do not have a significant effect on the size of the cutting forces. The theoretical and real stress values for HSS discs ranged from 14 to 22 MPa. Significantly larger differences were recorded for discs with SC, where the real values of the maximum stresses were around 14 MPa and the theoretical ones around 25 MPa. When cutting spruce with a disc with SC slices, the maximum values of the theoretical cutting forces were in the range of 76 to 94 N and the maximum values of the measured cutting forces were in the range of 40 to 44 N.

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Section: Calculation Of Cutting Forces On Individual Teeth Of the Saw...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Analysis of Cutting Forces in Cross-Sawing of Wood: A Study of Sintered Carbide and High-Speed Steel Blades

Krilek

Melicherčík

Kuvik

et al. 2023

Forests

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“…(Klamecki 1979;Orlicz 1988;Kminiak et al 2015Kminiak et al , 2016Kvietková et al 2015;Górski et al 2019;Nasir et al 2019). For frozen beech band sawing, Siklienka et al (2015) found that stellite tipped teeth had significantly higher wear resistance in comparison to swaged steel teeth. Cristóvão et al (2011) investigated under laboratory conditions the relationship between tool wear and some chemical and physical properties for four Mozambican lesser-known tropical species: Pseudolachnostylis maprouneifolia (ntholo), Sterculia appendiculata (metil), Acacia nigrescens (namuno), and Pericopsis angolensis (muanga).…”

Section: Introductionmentioning

confidence: 99%

Capacity of surface production of band sawing in manufacture of oak floor upper layers

Orłowski

Chuchała

Stenka

et al. 2023

BioRes

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Thin lamellae, corresponding to the layer components of structural glued members, i.e., 2-ply or 3-ply glued flooring, can be manufactured in re-sawing operations of kiln-dried wood blocks or in wet technologies, which currently seem to be more common because of the shorter drying time. The re-sawing process in wet technology is conducted on dedicated thin-cutting band sawing machines with stellite-tipped band saws. The goal of this research was to demonstrate the capacity of surface production (m2/ tool life) of visible layers of oak engineered flooring composites in a function of both a new band saw and a re-sharpened band saw blade. Additionally, the state of teeth of each band saw blade was examined at the end of the tool life. A series of cutting tests were performed in sawmill production conditions. The conducted tests revealed that a three times higher capacity of surface production was obtained for the new tool compared to re-sharpened tool. Additional microscopic observations of some re-sharpened teeth showed deformed plastic characteristics.

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“…SK blades and HSS tool steel [4,9,10]. Saw blades with SK blades have 20 to 30 times higher cutting edge durability when sawing wood compared to HSS tool steel [11].…”

Section: Introductionmentioning

confidence: 99%

Analysis of Cutting Forces at Transverse Sawing of Wood with SK and HSS Saw Blades

Krilek¹,

Melicherčík²,

Kuvik³

et al. 2023

Preprint

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This research deals with the processing of wood using a circular saw, which is associated with several risks and factors that affect the wood splitting process. One of them is the wear of the teeth of the saw blade and the change in the size of the cutting forces. The aim of this study is to compare real measured values and theoretical values when processing Norway Spruce wood, using two types of saw blades SK and HSS with a diameter of 600 mm and the number of teeth 54 and 56. Experimental measurements were carried out on a special test device with the possibility of moving the tested wood into the cutting devices and a simple saw blade replacement system. The results of the contributions show significant differences, based on defined factors, which are supported by FEM analysis of cutting forces in the process of cutting wood - when changing the design of the saw blade. The results of the experiment show that the cutting conditions (cutting speed, feed speed) do not have a significant effect on the size of the cutting forces. The theoretical and real stress values for HSS discs ranged from 14 to 22 MPa. Significantly larger differences were recorded for discs with SK, where the real values of the maximum stresses were around 14 MPa and the theoretical ones around 25 MPa. When cutting spruce with a disc with SK slices, the maximum values of the the-oretical cutting forces were in the range of 76 to 94 N and the maximum values of the measured cutting forces were in the range of 40 to 44 N.

show abstract

Process Characteristics of Horizontal Log Band Saw in Cutting Frozen Beech

Cited by 8 publications

References 2 publications

Analysis of Cutting Forces in Cross-Sawing of Wood: A Study of Sintered Carbide and High-Speed Steel Blades

Analysis of Cutting Forces in Cross-Sawing of Wood: A Study of Sintered Carbide and High-Speed Steel Blades

Capacity of surface production of band sawing in manufacture of oak floor upper layers

Analysis of Cutting Forces at Transverse Sawing of Wood with SK and HSS Saw Blades

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