How to use ceramic inserts correctly?--Problems and Solutions

11 February 2023
Ceramic Inserts are widely used in various industries. Due to the material characteristics of the ceramic insert, it has the following advantages:
▶Ceramic Cutting tools has good wear resistance and can be used to process difficult and high-hardness materials.
Ceramic tools can be used for rough and finish machining of high-hardness materials, as well as high-impact machining such as milling, planing, and interrupted cutting.
The silicon nitride ceramic inserts has less friction with metal when cutting, which makes it difficult to stick to the blade and the roughness of the workpiece is low.
1. Choose a blade shape with excellent strength
Please choose a blade shape with excellent strength as much as possible.
Ceramic Inserts
2. Choose a corner R angle with excellent strength
The larger the R angle of the blade tip, the stronger the blade tip strength and the longer the life of the blade.
However, if the R angle of the tool nose is too large, the cutting resistance will also become high, so please be careful.
Usually in heat-resistant alloy processing, RNGN1207 inserts are used for rough machining, and CNGN1204 inserts are used for finishing.
3. Protrusion minimization
If the protruding amount is too long, chatter marks and blade defects will occur.
Ceramic Inserts
4. Measures against chipping
Before machining starts, chamfer the corners of the workpiece.
If the corner of the workpiece is processed at an acute angle, the insert will have small chipping or defects.
Ceramic Inserts
5. Stagnation is strictly prohibited
If the insert contacts the workpiece at zero feed, significant wear will occur.
6. Cutting oil
When turning with WA5, WA1, SX3, SX9, and SX7, please use enough cutting oil. In the case of strong intermittent machining, the machining effect of canceling cutting oil may be better.
When milling with WA5, WA1, SX3, SX9, and SX7, be sure to remove cutting oil and use dry machining.
7. Cutting Tip treatment
In the processing of heat-resistant alloys, sharp tooltip processing is required. However, when using ceramic inserts, small-angle chamfering, and rounding are more conducive to exerting excellent wear resistance, especially boundary wear resistance.
Ceramic Inserts

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