Influence of belt speed, grit sizes and pressure on the sanding of Eucalyptus grandis wood

CERNE

Francisco Mateus Faria De Almeida Varasquim²  Manoel Cléber De Sampaio Alves¹  Marcos Tadeu Tiburcio Gonçalves¹  Luis Fernando Frezzatti Santiago¹  Alexandre Jorge Duarte De Souza¹ 

[1] ,Universidade Estadual Paulista Faculdade de Ciências de Bauru Departamento de Engenharia MecânicaBauru SP ,Brasil

关键词: Roughness;    cutting force;    power consumption;    Rugosidade;    força de corte;    potência consumida;   

DOI  :  10.1590/S0104-77602012000200007

来源: SciELO

【 摘 要 】

The sanding process is important to the quality of wood products. Sanding reduces imperfections in wood surfaces and it is important to the final product and application of paints or varnishes. There are few studies about sanding in the literature and finding out the relationship between the input parameters (i.e., species of wood, grit size, abrasive) on the output parameters (i.e., roughness, force, pressure) will help to improve this process. This study analyzed the influence of input parameters as belt speed (cutting speed), grit size and pressure on the output parameters as surface roughness, cutting force (sanding force) and power consumption on cross-grain sanding of Eucalyptus grandis wood. The tests were performed with 3 types of grit sizes (80, 100 and 120 grit), 3 belt speeds (10, 11 and 12 m/s) and 2 pressures (219.89 and 283.44 g/cm²). The surface roughness was analyzed based on roughness average (Ra). Sanding efforts were analyzed by cutting force and power consumption. It was found that the 100 grit size provided the lowest cutting force. It was observed that the belt speed, pressure and grit size influenced the surface roughness, cutting force and power consumption. The best surface finishes were obtained in tests with higher pressure.

【 授权许可】

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