Analysis and Experiment of Cutting Mechanical Parameters for Caragana korshinskii (C.k.) Branches

Gao, Yaoyao; Kang, Feng; Kan, Jiangming; Wang, Yutan; Tong, Siyuan

doi:10.3390/f12101359

Cited by 12 publications

(11 citation statements)

References 35 publications

(32 reference statements)

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“…Machines for splitting wood along the fibres (0°-90°) typically have a conical auger for splitting wood (Ober 1978;York 1983;Wentzell 1987;Bolton 2006;Erber and Stampfer 2020). Tests for breaking down wood transversely to the fibres (90°-90°) are mainly conducted on the heads of harvesters used for chipless cutting (Bergström and Di Fulvio 2014;Harvánek et al 2020;Gao et al 2021) or for limbing heads (Gerasimov et al 2012;Mederski et al 2018;Melicherčík et al 2021). Figure 13 presents a simulation of the process of splitting wood in direction B (0°-90°), while Fig.…”

Section: Resultsmentioning

confidence: 99%

Modelling the process of splitting wood and chipless cutting Pinus sylvestris L. wood in terms of designing the geometry of the tools and the driving force of the machine

et al. 2022

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The size of wood is reduced by splitting or chipless cutting whilst logging trees, limbing, or preparing wood to be a fuel, for example, or in order to improve the efficiency of wood drying processes. Low costs of wood processing are desirable in each of these processes. The article presents experimental and simulation tests run in ABAQUS software, which allow for an analysis of the geometry of cutting tools used during the splitting or chipless cutting of wood in order to determine the cutting force and driving force of the machine executing such a process. The tests involved wood of Pinus sylvestris L. (moisture content: 8.74% ± 0.1%) in four configurations (chipless cutting transverse to the fibres (90°–90°), splitting along the fibres (0°–90°), splitting radially to the grain (90°–0°) and splitting tangentially to the grain (90°–0°)). Analysis of the force and strength of the blade proved that an effective tip angle of the knife blade falls between 30° and 45°. The presented results also suggested that splitting wood along the fibres (0°–90°) is preferable in a machine process, while splitting tangentially and radially to the wood grain (90°–0°) is preferable when splitting wood using manual tools.

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Section: Resultsmentioning

confidence: 99%

Modelling the process of splitting wood and chipless cutting Pinus sylvestris L. wood in terms of designing the geometry of the tools and the driving force of the machine

et al. 2022

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“…For the cutting performance of C.K. branches, Gao et al (2021) investigated the effect of cutting parameters on peak cutting force during supported and unsupported cutting using a selfdesigned pendulum cutting test stand. Since the pendulum cutting test bench uses the inertial force of the pendulum to cut the branches, its cutting speed is high, while the operating speed of the tool cannot be achieved in the actual operation process.…”

Section: Introductionmentioning

confidence: 99%

Multi-objective optimization of peak cutting force and cutting energy consumption in cutting of Caragana korshinskii branches

Gao

Tong

et al. 2022

BioRes

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Caragana korshinskii (C.K.) flat stubble residue is an abundant biomass energy source in China. Because branch cutting is closely related to the harvesting of forest biomass, it is practical for forestry production and ecological development to investigate the effects of cutting parameters on the peak cutting force and cutting energy consumption of C.K. branches. In this study, the effect of cutting parameters on the peak cutting force and cutting power consumption of branches was investigated by single-factor and multi-factor tests using an independently developed reciprocating cutting test bench, and an optimization model was established. The interaction term of average cutting speed and tool cutting edge inclination angle significantly affected the peak cutting force, while the interaction term of cutting clearance and wedge angle had a significant effect on the cutting energy consumption. The optimal combination of cutting parameters was an average cutting speed of 0.5 m/s, cutting clearance of 1.4 mm, wedge angle of 25°, and tool cutting edge inclination angle of 20°. With this combination of parameters, the corresponding peak cutting force was 644.38 N, and the cutting energy consumption was 5.90 J, which was less than 5% relative error between each performance index and the theoretical optimized value.

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“…When using forest wood resources, cross-cutting to a preliminary dimension is often used, such as cutting a tree for logs and production of various wood products. Research on reducing energy consumption in wood processing machines is carried out by introducing innovations in cutting mechanisms [3][4][5], drives [6][7][8], or control system. The authors of [9] reported that lower values of cutting power were measured in transverse cutting of balks of coniferous (Spruce) than in deciduous wood (Beech).…”

Section: Introductionmentioning

confidence: 99%

Influence of Circular Saw Blade Design on Reducing Energy Consumption of a Circular Saw in the Cutting Process

et al. 2022

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Optimal cutting conditions, which lead to a high quality of the machined surface and low energy consumption, are crucial for wood processing. This paper describes the effect of feed speed, cutting speed and mean chip thickness on energy consumption and saw blade surface temperature during the spruce (Picea excelsa) cutting process. In the experiment, the energy consumption and the surface temperature of the saw blades were measured to find the optimal cutting conditions for the energy-efficient cutting process. The surface temperature of the circular saw blade was monitored online using a non-contact infrared sensor connected directly to a PC via a USB connector. The results show that the cutting power and the surface temperature of the circular saw blade increased with increasing feed speed. The lowest values of cutting power were shown by the saw blade CSB3. Compared to the classic CSB1 circular saw blade, the values were lower by 8%. The surface temperature of the circular saw blade is highest at the outer edge (area of the heel of the teeth), and decreases towards the center of the circular saw blade. For an identical mean chip thickness, energy-efficient cutting was achieved at a feed speed of 21 m/min. There must be a trade-off between machine productivity and energy consumption. Monitoring the cutting process of circular saws using intelligent sensors is the way to adaptive control systems that ensure higher quality of the machined surface and cost-effective machining.

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Analysis and Experiment of Cutting Mechanical Parameters for Caragana korshinskii (C.k.) Branches

Cited by 12 publications

References 35 publications

Modelling the process of splitting wood and chipless cutting Pinus sylvestris L. wood in terms of designing the geometry of the tools and the driving force of the machine

Modelling the process of splitting wood and chipless cutting Pinus sylvestris L. wood in terms of designing the geometry of the tools and the driving force of the machine

Multi-objective optimization of peak cutting force and cutting energy consumption in cutting of Caragana korshinskii branches

Influence of Circular Saw Blade Design on Reducing Energy Consumption of a Circular Saw in the Cutting Process

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