| 摘要 |
The invention provides a marking method which can be used to form good marking on a substrate made of brittle material, and a diamond point, and further provides a marking device comprising the diamond point. The diamond point is a tool which forms marking on the substrate (4) made of brittle material by being moved relative to the substrate (4) made of brittle material. A blade part (61) of the diamond point is four-arris frustum-shaped, and mainly comprises a front end face (64), a plurality of (four in the present embodiment) bevels (65(65a-65d)), and a plurality of hollows (67(67a-67d)). Furthermore, each ridge (66) of the blade part (61) comprises a straight line (the intersecting line of two abutting bevels) part (68) and a curve part (69) which is located on the connected hollows (67) of the abutting bevels (65) and is connected with the straight line part (68) and the front end face (64). |
