| 摘要 |
PROBLEM TO BE SOLVED: To provide a milling cutter tool that can simultaneously attain high cutting performance and smallest possible vibration/oscillation tendency. SOLUTION: (a) The milling cutter tool is equipped with a base portion 3, and (b) at least 3 blades 2', 2'', 2''', and 2'''', while individual blades are placed under respective rake anglesγ<SB>1</SB>,γ<SB>2</SB>,γ<SB>3</SB>, andγ<SB>4</SB>. (c) In the work process, the base portion makes blades move in the cutting direction S. (d) At least 3 blades are placed mutually with unequal distance, and (e) rake angles of at least some blades are established from the distance between the blade concerned and the other blade preceding in the movement in the cutting direction. (f) In this situation, rake angle establishment of the blade is implemented in such an arrangement that the rake angle concerned will become larger in line with the increase of a gap with the blade preceding in the movement in the cutting direction. COPYRIGHT: (C)2006,JPO&NCIPI |
