Fundamental Study on Side Surface Smoothing of Hole by Large-area EB Irradiation Method

Abstract

In large-area electron beam (EB) irradiation method developed recently, highly efficient surface smoothing of mold steels with planar shape was possible. However, it is difficult to smooth the side surface of hole shape. In this study, smoothing of side surface by guiding the EB to the side surface under control of magnetic field around the workpiece was proposed. As a basic study for smoothing side surface, L-shaped workpiece was used. It was made clear that the whole area of the side surface can be uniformly smoothed by guiding the EB to the side surface under the control of magnetic field around the workpiece.