What is tool passivation?
Through deburring, leveling and polishing, the quality and service life of the tool can be improved. The name of a process after finishing grinding and before coating is not unified at home and abroad, such as "edge passivation", "edge strengthening", "edge honing", "edge preparation" or "Er (edge radiating) treatment".
Why do tool passivation?
There are different micro notches (i.e. micro chipping and saw edge) on the tool edge grinded by ordinary grinding wheel or diamond grinding wheel. In the cutting process, the micro notch of the tool edge is easy to expand, which accelerates the tool wear and damage. Purpose of tool passivation
The purpose of edge passivation technology is to solve the micro notch defect of the tool edge after grinding, reduce or eliminate the edge value, and achieve the purpose of smooth, sharp and durable.
Ideal effect of tool passivation:
Edge rounding: remove the edge burr to achieve consistent rounding.
The edge burr causes tool wear, and the surface of the workpiece will become rough. After passivation, the edge will become very smooth, reduce the chipping, and improve the surface finish of the workpiece.
The tool groove is polished evenly to improve the surface quality and row cutting performance.
