Honing Stones
Honing stones are used for accurate and efficient honing of inner surfaces of holes.
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Recommendation of Honing Stones
| Work material Surface Roughness |
Steel C less than 0.3% | Steel C more than 0.3% | Alloy Steel | Stainless Steel |
|---|---|---|---|---|
| 3.0-6.0S | WA150-180RH70(+S) QB180-220H(+S) |
WA150-180RH60(+S) QB180-220J(+S) |
WA or MA80-150RH30(+S) QB180-220H(+S) |
WA180RH40(+S) QB180-220I(+S) |
| 1.5-3.0S | WA220RH60(+S) QB220J(+S) |
WA220RH50(+S) QB220J(+S) |
WA220RH30(+S) QB220I(+S) |
WA220RH30(+S) QB220I(+S) |
| 0.8-1.5S | WA320RH50(+S) | WA280-320RH40(+S) | GC280-320RH30(+S) | GC280 RH2GC120M UP |
| 0.2-0.8S | WA800 RH90 GC320RH70 |
GC600 RH90 GC320RH60 |
GC600 RH30 | GC600 RH10 GC120UP |
| Standard Cast Iron | Special Cast Iron | Aluminum Alloy | Honing Allowance | |
| GC120-180RH80(+S) QB180-220K(+S) |
GC120-150RH60(+S) QB180-220J(+S) |
GC80M UP | 0.10-0.50 | |
| GC220RH70(+S) QB220H(+S) |
GC220RH50(+S) QB220J(+S) |
GC120M UP | 0.05-0.10 | |
| GC320RH60 | GC320RH40 | GC220M UP | 0.01-0.05 | |
| GC800 RH40 GC320RH70 |
GC800 RH30 GC320RH60 |
GC320M UP | 0.01 or less | |
At a honing work, roughness of the surface finish differs greatly depending upon the honing machine and work condition. On selecting a honing stone, please inform of following items and consult thoroughly about the selection.
1. Workpiece
- Material
- Heat Treatment
- Shape and Dimension
- Honing Allowance
- Surface Roughness Requirement
- Crosshatch angle
2. Honing Machine
- Name of the machine
- Honing Oil
3. Working Conditions
- Rotation Speed (Operating Speed)
- Stroke Speed
- Grinding Pressure
- Work Timing