Honing rods analyzed with an electron microscope – Scienceofsharp (2018)
2 days ago
- #metal-removal
- #knife-maintenance
- #honing-rods
- Steeling a knife primarily removes metal to form a micro-bevel, contrary to the common belief that it only realigns the edge.
- Different types of honing rods (ribbed steel, ceramic, smooth steel) all remove metal through adhesive wear, not just abrasive wear.
- Edge damage in knives occurs through blunting, chipping, or mushrooming of the apex, not just rolling or deflection.
- Steeling does not sharpen a knife but improves keenness by creating a micro-bevel at a slightly higher angle than the primary bevel.
- Ceramic rods visibly remove metal, leaving black steel swarf, and are effective for maintaining high-hardness blades.
- Adhesive wear occurs due to high local pressure at microscopic contact points, enabling metal removal even with smooth rods.
- The effectiveness of steeling depends on the hardness of the blade and the type of honing rod used.
- Steeling is most effective when the edge shows visible reflection, indicating it's time for maintenance before full sharpening is needed.