In response to customer needs, this time we conducted passivation process verification for two types of tool particles: 3ER1.5ISOVT10-SA and
3DTER1.5ISOVK8-SA. The core objective is to achieve a passivation value for the tool particles that meets the standard through passivation
process treatment, thereby improving the cutting edge defects and enhancing the cutting performance.

The verification utilizes the PL-12C tool passivation and polishing machine, equipped with 15000-L abrasive for process treatment. The specific
parameters are as shown in the figure. The one-stage process setting maintains the dual spray guns in an open state, combined with process
beads and other tooling aids, to achieve stable clamping and uniform passivation of the tool particles.

Through verification using Keyence detection equipment and microscopic observation (magnification of 200x and 1000x), the effect is
significant: both types of tool tips exhibited obvious defects such as serrations and burrs on the cutting edge before passivation. Specifically,
the R value of 3ER1.5ISOVT10-SA was 17.94 μm before passivation, while that of 3DTER1.5ISOVK8-SA was 27.97 μm. After passivation
treatment,the defects of serrations and burrs on the cutting edge were significantly improved, with the R values being adjusted to 21.72 μm
and 21.61 μm respectively, both reaching the target values.

Subsequent application verification has shown that passivated tool particles not only effectively enhance the surface quality of processed
products during cutting operations, but also optimize chip evacuation performance, providing reliable guarantees for efficient and stable
cutting operations.