| 摘要 |
A device for implementing the impact action when applying images on a hard surface comprises a body with a diamond or carbide tip, while the vertex of tip lies on the longitudinal axis of symmetry of the body, the tip is made in the form of an irregular pyramid with different areas of faces forming a working part of the tip, and at different angles at their vertexes, the number of faces is in the range from three to thirty, a solid sharpening angle at the vertex of entire irregular pyramid is in the range of from 45° to 175°, and the ratio of tip height to body length is in the range from 0.006 to 0.96. The vertex of tip is rounded with a radius of not more than 2 microns and polished to surface roughness of not less than RZ04, and the deviation from the alignment of the body and tip vertex makes not more than . |
