RADIUS END MILL FOR HIGH-FEED CUTTING

摘要

PROBLEM TO BE SOLVED: To provide a radius end mill making high-feed cutting possible while enhancing loss resistance of a corner R blade and dischargeable nature of cut chips produced through the corner radiusing edge. SOLUTION: In this radius end mill for high-feed cutting, equipped with a corner radiusing edge 1 in the tip corner portion of the end mill, it is characteristically arranged, when the bottom blade side of the end mill is called the 1stcutting edge, while external periphery blade is called the 2ndcutting edge 3, that, from the view of a cross section that forms a right angle with the spindle of the end mill, the rake face of the 1stand 2ndcutting edges will be curved in a convex form and that the 2ndcutting edge will have a concave chip space extending in the blade bottom direction adjacently with the rake face. COPYRIGHT: (C)2004,JPO