Abstract
This paper deals with cutting phenomena in micro end milling. Cutting experiment was conducted by small milling machine and micro end mill was used. Tool wear and surface roughness were measured in interval of constant cutting length. Cutting force components were measured by dynamometer. As the results, rotational speed at which tool wear was minimized existed in this experiment and feed rate hardly affected on tool wear. Surface roughness at bottom was deteriorated by interference between tool edge and bottom of work, caused by deflection of tool.
