Influence of Milling Feed Rate on Surface Roughness of Natural Fiber Composite

Abstract

The influence of feed rate parameter of milling on natural fiber surface is investigated with constant 1700 rpm spindle speed. In this study, a surface texture-measuring instrument and optical microscope are used as measurement equipments. Ramie fiber composite samples are machined at 2, 4 and 6 mm/min feed rates each. The results shows that the sample machined at 4 mm/min feed rate has the lowest surface roughness value and its surface has a harmonious structure. In addition, many cracks and fractures appeared on the sample surface which machined at 6 mm/min feed rate due to the impact of the cutting edges.