How to choose a suitable corner radius for CNC turning inserts?
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How to choose a suitable corner radius for CNC turning inserts?
Due to the different shape of the carbide inserts, the tip angle changes from the minimum 35° to the round blade, and the corresponding tip angle is selected according to different workpieces.
Each shape has its own unique characteristics:
- Some provide the high strength required for roughing
- Some have good accessibility during profiling cutting
Each shape also has its own limitations. For example: high accessibility during machining means that the cutting edge strength is worse.
What's the difference between a big tip angle and a small tip angle?
| Big tip angle | Small tip angle |
| Stronger cutting edge Higher feed rate Increase cutting force Increase vibration | Weaker cutting edge Increase accessibility Reduce cutting force Reduce vibration |
What's the difference between a big corner radius and a small corner radius?
| Big corner radius | Small corner radius |
| Very high feed rate Large depth of cut High cutting edge safety Increase radial pressure | Best for small depth of cut Reduce vibration Low cutting edge strength |
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