EVALUATION OF PHYSICAL PROPERTIES AND MACHINING OF AFRICAN MAHOGANY (Khaya ivorensis A. Chev.) WOOD

摘要

This study had as main objective the evaluation of physical properties and the quality of the machining process results of Khaya ivorensis A. Chev wood. Samples of trees implanted in the Campus of the Rural Federal University of Rio de Janeiro with approximately 15 years of age were evaluated. Samples with dimensions of 50×30×20 mm was produced and appraised, perfectly oriented in the three cut plans (transversal, radial and tangential) for physical characterization of the material. 30 specimens with dimensions: 600mm ×120mm ×25 mm were produced for the machining tests of planning and sanding. The samples for physical characterization show that the evaluated wood of African mahogany presented medium to high basic and apparent density, and the results about the surface quality showed that the samples processed with smaller progress speed generated less superficial defects and better parameters of roughness.