INFLUENCE OF THERMAL MODIFIED PINEWOOD ON THE QUALITY OF MACHINING AT PLAIN MILLING

Abstract

Article assess the effect of thermal modification on the surface roughness (Ra) after the face milling of pinewood (Pinus sylvestris) at different cutting conditions. The experiment was performed with samples modified at four temperatures (T = 160 °C, 180 °C, 210 °C and 240 °C), at three feed speed (vf = 6, 10 , 15 m.min-1), at three cutting speeds (vc = 20, 40, 60 m.s-1) and at positions of three angles (γ = 15°, 20°, 30°). The roughness measurement was executed by a non-contact method using a laser profilometer LPM - 4. It was found the importance of influence of studied factors affecting the surface finish in the order: heat treatment, feed speed, cutting speed, angular geometry.

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