 FUNCTION OF TOOL FEATURES FOR TURNING |
 Honing and land are cutting edge shapes that maintain cutting edge strength.
Honing can be round or chamfer type. The optimal honing width is approximately 1/2 of the feed.
Land is the narrow flat area on the rake or flank face. |
- Enlarging the honing increases cutting edge strength, tool life and reduces fracturing.
- Enlarging the honing increases flank wear occurrence and shortens tool life. Honing size doesn't affect rake wear.
- Enlarging the honing increases cutting resistance and chattering.
When to Decrease Honing Size |
- When finishing with small depth of cut and small feed.
- Soft workpieces.
- When the workpiece and the machine have poor rigidity.
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When to Increase Honing Size |
- Hard workpieces.
- When the cutting edge strength is required such as for uncut surface cutting and interrupted cutting.
- When the machine has high rigidity.
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* Cemented carbide, STi, UTi, coated diamond, and indexable cermet inserts have round honing as standard already.
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