Qualidade da superfície usinada em pisos de madeiras de Corymbia e Eucalyptus

Abstract

Quality machined surface in woods floors Corymbia and Eucalyptus.The objective was to generate scientific knowledge that contributes to better efficiency of the parameters involved in machining from different evaluation methods of qualifying the machined surface and evaluate the use of species of Eucalyptusand Corymbiain floor production, but also to analyze the relationship ofdensity and deviation of the grain with the roughness of wood. The speciesused wereE. dunnii, E. urophylla, E. grandis, C. citriodoraand C. maculata, all aged 37. For machining test were usedtest specimenswith dimensions of 800x100x25mm, advance speeds 15 and 30m*min-1and cutting speed of the tool 18 and 25m*s-1. It was held the qualification of the machined surface through the feed per tooth, visual analysis and roughness parameters,and also carried the relationship of the density and diversion of grain with roughness of wood. The wood of all species were classified as bad and very bad for the visual qualification, per tooth feed values were above recommended for wood floors. The lowest values of roughness parameters were obtained for the woods with higher density and lower deviation of the grain. By using different methods of qualification surfaces in Eucalyptusand Corymbiawoods, low potential was observed to use these wood floors.However, it must be conducted other studies with different speeds of advance and cut to verify the possibility of improving the surface qualities of the wood.Keyword:Wood machining;roughness;feed per tooth.