Abstract
Various burrs in size and shape are formed at workpiece edges in metal cutting and cause many problems in many production lines. Therefore, the reduction and control of the burrs are necessary. To reduce and control the burr in size and shape, a conceptual understanding of the burr formation mechanism is necessary, due to the variety of burrs in the size and shape. In this study, to understand the burr formation mechanism, burr formation process in orthogonal cutting for various material were analyzed by a finite element method and micro-machining experiment in a scanning electron microscope. As the results, important factors of workpiece property and cutting conditions in burr formation were shown and a framework for the burr formation process based on the material property was presented. Moreover, the relationship between the formation process and the burr size was considered quantitatively.
