Constant or progressive twist
The twist rate in the barrel is produced constant or progressive; twist rate and length are programmed on the touch panel and stored in the control for repeat jobs.
Rifling (Drallziehen) machines
TIBO DR series
Modular rifling machines for constant or progressive twist in barrels and tubes
Ø 4.5–155 mm Machining diameter
10,000 mm Machining depth (max.)
1–4 Number of spindles
ⓘ Manufacturer data; TIBO product page. Values may change and vary; not binding on Boztaş.
Why DR series?
Two methods
Chipless button rifling (Knopfziehen) or cut rifling (Drallschneiden, with hook or crown cutter), chosen according to the technical requirement and the barrel profile wanted.
Monitored process
The pulling force is monitored and the process is recorded; the record is used for documentation and control.
Variants
Button riflingKnopfziehen
Cold forming; rifling without chip removal
Suited to: According to the technical requirement and the barrel profile wanted
Cut riflingDrallschneiden
Cutting method; hook cutter or crown cutter
Suited to: According to the technical requirement and the barrel profile wanted
Technical data
| Feature | DR series |
|---|---|
| Capacity | |
| Machining diameter | Ø 4.5–155 mm |
| Machining depth (max.) | 10,000 mm |
| Number of spindles | 1–4 (depends on the solid-drilling diameter) |
| Process | |
| Method | Button rifling (Knopfziehen) or cut rifling (Drallschneiden; hook or crown cutter) |
| Twist rate | Constant or progressive |
| Process monitoring | Pulling-force monitoring and process recording |
| Control | |
| Control | Touch panel; twist rate and length are programmed, parameters stored for repeat jobs |
| Equipment | |
| Automation (option) | Automatic loading and unloading, for example by robot |
Manufacturer data; TIBO product page. The manufacturer publishes no per-type data; the values apply to the DR series as a whole. The number of spindles depends on the solid-drilling diameter.
Technical data is taken from information published by the manufacturer. The manufacturer may change it without notice, and values may vary with the model and the machine configuration. The data is for information only and is not binding on Boztaş; binding values are stated only in a written quotation.
Processes that can be combined on this machine
- Rifling (Drallziehen)
- Button rifling
- Cut rifling
Typical workpieces
- Precision rifle barrels (Präzisionsgewehrläufe)
- Large-calibre tubes (großkalibrige Rohre)
- Ballistic components (ballistische Komponenten)
Related industries: Defence
Frequently asked questions
Which diameters and lengths does the DR series cover?
TIBO gives the DR series a machining diameter from Ø 4.5 mm to Ø 155 mm and a machining depth of up to 10,000 mm. The number of spindles is 1–4 and depends on the solid-drilling diameter.
Which rifling methods are used?
Chipless button rifling (Knopfziehen) and cut rifling (Drallschneiden); cut rifling uses a hook or crown cutter. The method is chosen according to the technical requirement and the barrel profile wanted.
How is repeatability ensured in series production?
Parameters such as twist rate and length are programmed on the touch panel and stored in the control for repeat jobs; the pulling force is monitored and the process recorded. The machine is modular and can be fitted with automatic loading and unloading, for example by robot.
Other TIBO models
TIBO E10–E40 Modular gundrilling machines for solid drilling from Ø 2 to 40 mm Ø 2–40 mmØ 55 mm4,500 mm Technical data 
TIBO B80–B250 Modular BTA deep hole drilling machines for large-diameter solid drilling and counter-boring Ø 250 mmØ 400 mm12,000 mm Technical data 
TIBO KTE40-1000 Cross-table machine combining deep hole drilling, milling and tapping for die, mould and fixture parts Ø 5–40 mm1,000 mm17 kW Technical data