STUDY OF MACHINING OF THERMAL RECTIFICATED Corymbia citriodora AND Pinus elliottii

ESTUDO DA USINAGEM DAS MADEIRAS DE Corymbia citriodora E Pinus elliottii TERMORRETIFICADAS

ABSTRACT

This study evaluated the influence of thermal rectification in machining Corymbia citriodora and Pinus elliottii. The heat treatment was carried out for 6 hours at temperatures of 100°C, 140°C, 160°C, 180°C and 200°C and evaluated the performance of machining in three different material cutting tools, polished and hard metal carbide with TiB2 coating. The cutting power and roughness R_a and R_t of the machined surfaces with three different tools were evaluated. The power has proven lower for Pinus elliottii species. The roughness was lower for Corymbia citriodora wood. The roughness R_a and R_t were lower for heat treatment temperature of 180°C.

Keywords:
Heat treatment; Cylindrical turning; Roughness