| 摘要 |
PROBLEM TO BE SOLVED: To provide a cutting tool for laminate materials which enables a laminate material constituted by overlapping a resin material on a glass material to be cut by a single working step with a single cutting tool.SOLUTION: A cutting tool 100 for a laminate material comprises a blade part 110 shaped in gimlet projection to the tip of a shank 101, the blade part 110 made of sintered diamond. The blade part 110 is constituted of two ceramic-use blade parts 111, 112 and one resin-use blade part 113. The ceramic-use blade parts 111, 112 are cutting edges for cutting ceramic layers C, Cof a workpiece WK and formed by concave curving. The respective rake faces 111b,112b of the ceramic-use blade parts 111, 112 are formed by negative rake faces. The resin-use blade part 113 is cutting edges for cutting the resin layer R of the workpiece WK and formed by extending in the axial direction of the shank 101 by overhanging outward in the radial direction of the shank 101 with respect to the two ceramic-use blade parts 111, 112. |
