Feed Cutting Force Component in Up and Down Sawing of Pine

Javorek, L.; Kminiak, Richard; Vargovská, Maria; Csanády, Etele; Németh, Š

doi:10.5552/drvind.2022.0018

Cited by 2 publications

(4 citation statements)

References 4 publications

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“…Using the size and direction of the cutting forces together with the boundary conditions, it was possible to implement a simulation in the evaluation of which the program includes the action of the gravitational force as well as the size of the centrifugal force for the specified cutting conditions. The results give an approximate idea of how big stresses can act on individual parts of the saw blade from the point of view of theory and practice [10,[13][14][15][16][27][28][29].…”

Section: Resultsmentioning

confidence: 99%

“…The implementation of the experiment, which consisted of the transverse division of two selected types of wood with saw blades of the given dimensions, was carried out using an experimental device, and the individual components of which are described in Figure 1. The most demanding requirements for machine tools are accuracy and precision, which mainly depend on the static deformation and dynamic behavior of the machine tool under variable cutting forces [13][14][15][16]. The work table (Figure 1) contains a three-phase asynchronous electric motor (1) with a power of 7.5 kW.…”

Section: Measuring Device and Its Componentsmentioning

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: Resultsmentioning

confidence: 99%

Section: Measuring Device and Its Componentsmentioning

confidence: 99%

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

View full text Add to dashboard Cite

show abstract

“…The work table (Figure 2) contains a three-phase asynchronous electric motor (1) with a power of 7.5 kW. The torque is transmitted through the flat belt (2) and further through the bearing, safety clutch (3) GIFLEX GFLL -28 input clutch of the torque sensor (4), torque sensor HBM T20WN, output clutch of the torque sensor, spindle for the saw blade ( 5). The processed material is held in the sliding part ( 6) by means of a lever mechanism, which ensures sufficient clamping.…”

Section: Measuring Device and Its Componentsmentioning

confidence: 99%

“…The use of saw blades is different, especially with single or multiple cutting with a single or double shaft or in splitting machines. Circular sawing has been the center of attention of many researchers due to its wide use [5].…”

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.

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Feed Cutting Force Component in Up and Down Sawing of Pine

Cited by 2 publications

References 4 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

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

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