The grit size of a Honing Stone exerts a direct influence on the final surface roughness of machined bores and overall processing productivity.
Generally, coarse-grit honing stones result in inferior surface roughness but feature higher material removal efficiency and productivity.
In contrast, fine-grit honing stones can achieve excellent surface roughness, while their machining productivity is relatively lower.
For heavy-duty deep hole honing applications, the grit size of the honing stone is commonly selected in accordance with the following standards:
Rough honing: 80# ~ 180#
Semi-finish honing: 180# ~ 280#
Finish honing: W40 and finer grit
Honing oilstone application
1.Deep hole honing stone, mainly used at deep hole honing machine tool, deep hole honing head. in general, deep hole honing head has four or six, eight honing stone according to actual work grinding need.
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| The relationship between particle size and surface roughness of honing oil stone | |||||||||
| Honing oilstone grid | 80# | 100-120# | 150# | 180# | 240# | 280# | W40 | W28 | W20 |
| Surface roughness | 1.6-0.8 | 0.8-0.4 | 0.4 | 0.4-0.2 | 0.2-0.1 | 0.1 | 0.1-0.05 | 0.05 | ＜0.05 |
Common Honing Abrasives and Grit Size Corresponding to Honed Surface Roughness – Reference Table
| abrasive | grid | Quenching steel | Non quenching steel | Casting | non-ferrous metals |
| Corundum | 100-180# | – | 1.25-1.0 | – | – |
| silicon carbide | 100-180# | – | – | 1.0 | 1.6-1.25 |
| Corundum | 240# | 0.63 | 1.0-0.8 | — | — |
| silicon carbide | 240# | – | – | 0.63 | 1.25-1.0 |
| Corundum | W50 | 0.4-0.32 | 1.0-0.63 | — | — |
| silicon carbide | W50 | — | — | 0.5-0.4 | 0.8 |
| Corundum | W40 | — | — | — | — |
| silicon carbide | W40 | 0.32-0.25 | 0.63-0.5 | 0.5-0.4 | 0.8-0.63 |
| Corundum | W28 | 0.2-0.16 | — | — | — |
| silicon carbide | W28 | — | 0.32-0.25 | 0.32-0.25 | 0.5-0.4 |
| Corundum | W20 | — | — | — | — |
| silicon carbide | W20 | 0.16-0.1 | 0.25-0.2 | 0.16-0.125 | 0.4-0.32 |
oilstone picture display
below is a kind of CBN oilstone,nowadays, more and more customer focus on this kind CBN oilstone, it can quickly remove material of workpiece. effiency of work have been increased greatly. so more and more be popular in workpiece machining.
