Cool and Hernández (2011) advocated for a minimum level of fibrillation of the cell wall to improve the coating performance. De Moura et al. (2010) stated that low roughness values reduce the area available for adhesion in processes involving gluing of wood. According to Xavior et al. (2017), the roughness and residual stress are the main problems of surface integrity and affect the quality and useful life of a product. The roughness directly influences the quality of the wood surface finish. According to Kilic et al. (2006), the pen method using one of the measures R a can be used to evaluate and distinguish variations on the surface of the wood in the sanding process. This can be measured through the surface roughness ( R a), and the value represents the arithmetic mean of the absolute values of the deviations found from the surface measurement (Gottlöber 2014). The roughness characteristic includes micro geometric irregularities. The main indicator of the surface quality of wood that undergoes sanding is the roughness (Ugulino and Hernandez 2018). Sanding is a prerequisite for subsequent processes involving the application of coatings, such as varnish, paint, adhesive, glue, sealant, or even a colorless varnish to improve the appearance of raw wood and highlight its visual appearance (Varasquim et al. One of the most important processes in the forestry industry is sanding to adjust the dimensions and surface finish of the product (Bao et al. Wood obtained from sustainably managed forests is one of the most environmentally-friendly materials, and its manufactured products are fundamental in modern society (Ramage et al. 2017). Keywords: Surface quality Roughness Removal rate Pinus elliottii Corymbia citriodoraĬontact information: a: São Paulo State University, Mechanical Engineering Department, Bauru, SP, 17033-360, Brazil b: São Paulo State University, Production Engineering Department, Bauru SP, 17033-360, Brazil c: São Paulo State University, Department of Materials and Technology, Guaratinguetá, SP, 12516-410, Brazil *Corresponding author: is a notable ecological material because of its beauty and versatility, and is mainly applied in the building and construction industries. Sueli Souza Leite, a,* Gessica Mina Kim Jesus, b Manoel Cléber de Sampaio Alves, c Ivaldo de Domenico Valarelli, a Marcus Antonio Pereira Bueno, a Fernanda Christiane Rossetto Dinhane Magorbo, a Fabio Alexandre Moizes, a and Vitor Manoel Salvadeo a Also, the aluminum oxide sandpaper presented greater durability and resulted in lower roughness values.Īnalysis of the Parameters Affecting the Surface Sanding of Pinus elliottii and Corymbia citriodora Wood Species The results showed that the surface roughness and removal rate were significantly influenced by the sandpaper parameters, but not by the wood parameters. The tests were analyzed statistically by analysis of variance. The Taguchi method was applied, and tests were performed on a flat sander with a pneumatic circuit and monitoring system for data acquisition. Therefore, this work analyzed the effects of the sandpaper parameters (grit size and type of abrasive), wood parameters (species and fiber direction), and contribution percentage thereof on the behavior of the surface roughness and removal rate of the material. One of the most important processes in the logging industry is sanding, though it is treated empirically by companies without a systematic study of the influence of its parameters, and it incurs high costs in this sector. These properties make it attractive compared with other materials, mainly in the manufacturing and civil construction industries. It features characteristic mechanical resistance, thermal and electrical insulation, easy workability, and low energy consumption during processing. Wood is a versatile and renewable material. " Analysis of the parameters affecting the surface sanding of Pinus elliottii and Corymbia citriodora wood species," BioRes.
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