Общий каталог PRECITOOL - страница 510
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Type GER / CER / ET
Precision collets GER - DIN ISO 15488 (ER / ESX)
Quality pays off
Serial number
Bore diameter
Quality
Made in Germany
Collet chuck size
The FAHRION
quality mark for
tested quality
= Higher tool life, reduced tooling
costs and set-up times
= Lower production costs
Better surface finish and tighter
manufacturing tolerances
= Higher quality
Effect of the concentricity error on the Influence of the concentricity error on the
tool blade service life of VHM tools
Tool lives in % 250 FAHRION GERC-HP/-HPD/-HPDD 200 FAHRION GERC-B/-BD 150 100
| Irregular | Tool wear becomes | Feed has | DIN class 2 (K2) | |
| 50 | ||||
| load on the cutting | greater, | to be reduced | ||
| edge | surface quality | 0 |
| deteriorates | µm | µm | µm | µm | µm | µm | µm | µm | µm | ||||
| 1 | 3 | 4 | 8 | 9 | 12 | 15 | 18 | 25 |
Concentricity error
Cost example for a solid carbide drill 12 mm with collet DIN ISO 15488 - form B, type 470 E
| Example 1: System concentricity≤1 | 0 μm | Example 2: System concentricity≤ | 25 μm |
| Cost for solid carbide drill | approx. 105.00€ | Cost for solid carbide drill | approx. 105.00€ |
| Cost for FAHRION GERC32-B collet | Cost for CER32-K2 collet | ||
| with concentricity 5 µm | approx. 20.50€ | DIN class 2 with concentricity 20 µm | approx. 13.20€ |
| Cost for achieved tool life of approx. 150 % | approx. 125.50€ | Cost for achieved tool life of approx. 55 % | approx. 118.20€ |
| Cost for similar tool life of approx. 150 % More than two solid carbide drills required! | approx. 322.00€ |