| 摘要 |
PURPOSE:To improve the cutting performance and the accuracy of finished surface by using a laminated-blade milling cutter available for both rough work and finishing work. CONSTITUTION:A slit band (a) having a same width is formed at the symmetrical position on a contiguous blade base with respect to the position where an overlap band (b) is formed on the other blade base 3a, and a cutting blade does not exist in the slit band (a). In the symmetrical relation between the position of each band (a), (b), each band (a), (b) is positioned alternately in each layer on the both blade bases so that generation of unbalance of cutting resistance between blade bases can be prevented, and thus the cutting performance for both rough work and finishing work is excellent, and the accuracy of finished surface can be improved. |
