NACHI-FUJIKOSHI CORP.
Cutting Tools
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Dual Cut Hob
Excellent Material
| Excellent material for hob having Wear Resistance and Chipping Resistance | ||||||
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| Optimum Coating in Dry Cutting Optimum Hob Design in Dry Cutting |
Typical structure of chip by wet cutting
Typical structure of chip by dry hobbing
SEM image of adhesive metal on cutting face by dry hobbing
Heat Transmittal and Diffusion
| TiCN Coating |  |
| TiAlN Coating |  |
Comparison between dry and conventional
| HSS Hob | Carbide Hob | ||
| Coolant | Non water soluble oil | Dry | Dry |
| Speed | 80 - 120 | 120 - 160 | 300 - 350 |
| Efficiency | 1 | 1.5 | 3 |
| Tool Life | 1 | (2 - 5) | (4 - 10) |
| Cost | 1 | (1.5 - 2) | (3 - 4) |
| Accuracy |  |
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| Workshop environment |  |
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(good) (ok)(bad) |
Recommended cutting conditions
Summary of dry hobbing
