Каталог Iscar сверла со сменной режущей частью 2022 - страница 146
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Каталог Iscar монолитные фрезы 2022
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Каталог Iscar дисковые фрезы и фрезерные пластины 2022
| User guide for DRG-MF | User Guide for Turn-Mill Machines |
| Coolant Pressure | Insert Positioning |
- Apply above 6 Bar in 2.25xD tools (optimal pressure For drilling, cutting edge should be positioned in the center is above 10 Bar). of tool body. Radial Adjustment (off-center drilling)
Correct Correct Wrong
- Radial adjustment is dependent on drill diameter
Cutting edge for drilling
Optimization of Chip Shape
- Apply high-speed machining on low carbon steel Cutting edge
- Produce thin chips, as most problems for drilling are caused by thick chips
- Regulate chips produced by machining Setup medium-to-high carbon steel
- If too tight, either increase speed and reduce feed, or reduce speed and increase feed
- If too long, reduce speed and increase feed
| Tool | Drill Dia. | Dmin | Dmax |
| DRG-MF-10 | 10 | 9.82 | 10.60 |
| DRG-MF-12 | 12 | 11.82 | 12.60 |
| DRG-MF-14 | 14 | 13.80 | 14.60 |
| DRG-MF-16 | 16 | 15.76 | 16.50 |
| DRG-MF-20 | 20 | 19.80 | 20.60 |
| DRG-MF-25 | 25 | 24.80 | 25.80 |
| DRG-MF-32 | 32 | 31.80 | 33.00 |
Check formation of core and its size after drilling 3 mm to
Adjust Y-axis of the tool body by using the new adjustable Troubleshooting clamping unit (if available) or rotate the tool body 180° and secure it into a turret. Check the core again.
| Problem | Solution |
| Chipping caused by built-up edge | • Increase cutting speed • Reduce feed • Check tool and workpiece rigidity • Reduce tool and workpiece overhang |
| • Reduce cutting speed | |
| Excessive flank wear | • Use a harder grade (special) • Increase coolant flow • Check cutting edge height |
| • Reduce cutting speed | |
| Edge | • Use a harder grade (special) |
| deformation | • Increase coolant flow • Reduce feed |
| • Reduce feed | |
| Poor surface quality | • Increase coolant flow • Check tool and workpiece rigidity • Increase cutting speed |
| • Increase feed | |
| Long chips | • Reduce cutting speed • Increase coolant flow |
| Tight chips | • Reduce feed |
| • Check tool and workpiece rigidity • Reduce tool and workpiece overhang • Reduce cutting speed | |
| Vibrations | • Increase feed • Check cutting edge height • Reduce feed and increase cutting speed on very soft materials |