TFH Drill
Towards a new realm
of high-efficiency aluminium machining!
- Highly efficient machining of aluminium alloys with ‘low-resistance thinning’ + ‘double margin’
- High feed rate of drill diameter × 15% (mm/rev)
due to low-resistance thinning - Stable machining accuracy with double margins
- DLC coating improves resistance to welding
“Amazing Ideas / Facts!”
The TFH drill realises low thrust and stable machining accuracy due to its special thinning and double margins, which enable the high feed rates equivalent to 15% of the drill diameter.
Reduction of cutting resistance (thrust)Good !
Allowance of Diameter expansionGood !
POINT!
Low resistance and stable machining accuracyExcellent !
Background / Point for Development
Background
- High efficiency and reduced cutting resistance are essential in drilling operations to reduce investment cost for equipments and the machinery down-sizing.
Conventional twisted drills usually have higher thrust and poorer chip evacuation, making it difficult to reduce overall machining time.
Point for Development
- The TFH drill features a newly developed thinning shape for low thrust and a special flute shape for improved chip evacuation, enabling high feed rate of drill diameter × 15% (mm/rev).
- The double margin ensures stable machining accuracy and contributes to improved productivity in a wide range of applications.
Product Specification
Tool Specification
| Process covered | Aluminum general hole (w/o preholes) |
|---|---|
| Diameter | ø4mm - |
| Standard conditions |
|
| Performance | Accuracy: IT9 Surface roughness: Rz25 Machining hole depth: L/D≤5 Positional tolerance: ø0.6 |
Example of workpieces
