Influence of Moisture Content on Cutting Parameters and Fracture Characteristics of Spruce and Oak Wood

Wood surface treatment aims to improve or reduce the surface activity of wood by physical treatment, chemical treatment, biological activation treatment or other methods to achieve the purpose of surface modification. After wood surface modification, the paint film adhesion performance, gluing performance, surface wettability, surface free energy and surface visual properties would be affected. This article aims to explore the effects of different modification methods on the adhesion of wood coating films. Modification of the wood surface significantly improves the adhesion properties of the paint film, thereby extending the service life of the coating. Research showed that physical external force modification improved the hydrophilicity and wettability of wood by changing its surface structure and texture, thus enhancing the adhesion of the coating. Additionally, high-temperature heat treatment modification reduced the risk of coating cracking and peeling by eliminating stress and moisture within the wood. Chemical impregnation modification utilized the different properties of organic and inorganic substances to improve the stability and durability of wood. Organic impregnation effectively filled the wood cell wall and increased its density, while inorganic impregnation enhanced the adhesion of the coating by forming stable chemical bonds. Composite modification methods combined the advantages of the above technologies and significantly improved the comprehensive properties of wood through multiple modification treatments, showing superior adhesion and durability. Comprehensive analysis indicated that selecting the appropriate modification method was key for different wood types and application environments.

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Sawing Model and Optimization of Single Pass Crosscut Parameters for Pinus kesiya Based on the Transformer Model

Wang,

Guo

et al. 2024

Forests

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The optimization of the sawing process for Pinus kesiya Royle ex Gordon, an important timber used in construction and furniture, especially through the adjustment of parameters such as wood moisture content, cutting speed, and feed speed, not only helps reduce energy consumption and noise but also improves surface processing quality, thereby promoting green and environmentally friendly production. Therefore, this study selects the wood moisture content, cutting speed, and feed speed during the Single Pass Crosscut process of Pinus kesiya as the preliminary experimental parameters. Based on the Transformer model, a cutting prediction model for Pinus kesiya is established to predict three cutting performance indicators: cutting power consumption, surface roughness, and cutting noise. Meanwhile, Bayesian optimization was used to search for the optimal parameter combination within the specified cutting process parameter ranges that minimizes the objective function for these cutting performance indicators. Finally, experimental verification based on the optimal parameter combination shows that the average coefficient of determination for the cutting performance indicators is 0.937, the average mean squared error is 0.076, and the average mean absolute error is 0.186, indicating good agreement between the predicted and measured values.

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Influence of Moisture Content on Cutting Parameters and Fracture Characteristics of Spruce and Oak Wood

Cited by 3 publications

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Mode I fracture properties of thermally-modified spruce wood ( Picea abies ) at different moisture contents

Mode I fracture properties of thermally-modified spruce wood ( Picea abies ) at different moisture contents

A Review on the Effect of Wood Surface Modification on Paint Film Adhesion Properties

Sawing Model and Optimization of Single Pass Crosscut Parameters for Pinus kesiya Based on the Transformer Model

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