| 摘要 |
The present invention relates to a method for forming three-dimensional mark on a cylindrical tool and a die for forming the same, wherein the method includes the steps as: first, material preparation: choosing a cylindrical tool as a raw material; second, forming an identification area: forming the identification area on a surface of the raw material; third, roll-and-press forming: forming a projecting three-dimensional identification unit by pressing and rolling the identification area of the raw material with a die. The die is formed at a terminal surface with an abutting portion, and at both sides of the abutting portion is formed two guiding portions, the abutting portion is formed with an identification groove, the guiding portions are inclined relative to the terminal surface of the die.
|
