Starrag NB Series
Starrag NB 151
Shortest cycle times and zero scrap rate production are what the Starrag NB 151 stands for. The NB 151 is based on the very successful Starrag LX series.
Lower costs per part…
Dedicated kinematic concept for efficient Blisk roughing or finishing.
Reliable production...
Expansion of the spindle through thermal drift or centrifugal forces can constantly be measured and compensated for by direct measurement.
Efficient machining strategies…
The NB 151 offers a superior accessibility for all kinds of multi-blade parts, be it blisks, impellers, diffusors or nozzle guide vanes.
Blisks
Blisks made from Titanium, Nickel-based superalloys and the Blisks made of blade steels for stationary gas turbines triggered the development of the NB 151. The challenges posed by the thin, unstable airfoils are easily met by the new productive manufacturing approaches that Starrag provides.
For all the necessary manufacturing operations Starrag provides the benchmark: Efficient roughing for Blisks machined from solid, adaptive machining for friction welded Blisks, high dynamic finishing of the airfoils in point contact. Shortest cycle times and zero scrap rate production are what the Starrag NB 151 stands for. The NB 151 is based on the very successful Starrag LX series.
The fastest production solution for nickel blisks
The fastest production solution for titanium blisks
Precision in a new dimension
NB 151 Spindle 18'000 rpm HSK-T100
Key benefits:
- High precision thanks to displacement and temperature sensor
- Inexpensive thanks to standard components
- Starrag OEM quality from one source
Spindle life time
Oversize hybrid spindle bearings with ceramic balls
Motor spindle monitored by various sensors
Reliable Power
Indestructible asynchronous Motor
Designed for highest Torque-Speed combination
High-Precision
Extremely precise machining at any speed and power due to displacement and temperature sensors
Efficient roughing for Blisks
Starrag’s dedicated machine concept of the NB 151 provides the best solution for efficiently machining of these parts.
No matter if it is called a «Blisk» (bladed disk) or an «IBR» (integrally bladed rotor), no matter if it is single stage or multi stage.
Starrag’s dedicated machine concept of the NB 151 provides the best solution for efficiently machining of these parts.
Machine design
The keys for any efficient blisk machining strategies are the accessibility to the part and the dynamics of the A and B axis. The rotary axis of the NB 151 are designed and built based on the extensive know-how of its application engineers. Thus the machines do not just offer rotary axis, but rotary axis that have been specifically designed for blisk machining.
Unique advantages
With its application-specific design, the NB 151 offers a number of unique advantages:
Highest dynamics due to low masses of linear and rotary axes
Shorter cycle times due to greatly reduced compensation movements (tilting around the tool center point)
Efficient roughing with high material removal rates due to an axis concept without weak points (like e.g. quills)
And many more
Machine intelligence
The NB machines are pioneers in this respect:
Process analysis and evaluation is greatly simplified by integrated sensors.
Critical parts of the program are automatically identified enabling systematic process optimization.
Damages caused by collisions are significantly reduced thanks to rapid detection and machine shutdown.
And many more
Axis made for blisks
The keys for any efficient blisk machining strategies are the accessibility to the part and the dynamics of the A and B axis. The rotary axis of the NB 151 are designed and built based on the extensive know-how of its application engineers. Thus the machines do not just offer rotary axis, but rotary axis that have been specifically designed for blisk machining.
Dynamic | Accessibility | Powerful
Features
Productivity
Machine design and axis concept are critical for process stability during roughing and for high dynamics when finishing. Consequently shorter process times with reduced tool wear are possible.
Turning functionality
For all machines of the NB 151, a full turning capability can be included (with freeform turning, specific measurement cycles etc.), making complete and accurate machining of Blisks in one setup possible.
Surface quality
Producing unblemished milled airfoil surfaces is Starrag's explicit aim - milling workpieces in such a way that they can be assembled directly or after a minor additional process such as barrel finishing.
Precision
In modern production, quality is an absolute must. For Starrag this means that reliable manufacturing must be possible in less than ideal conditions such as fluctuating temperatures or lack of warm-up phases.
Process cooling
One key factor to lowering your tooling cots and increasing your productivity is selecting the right cooling method.
Clamping concepts
The special workpiece geometries create specific demands on the clamping fixtures. Starrag has in-house specialists who develop individual clamping concepts to meet the specific requirement of Blisk machining.
Find your NB-machine
Your high performance 5-axis Blisk machining center
Manufacturing blisk rotors in a single clamping operation:
Starrag rounds off its blisk machining range with the Starrag NB 151
The machining solution for blisks
Starrag’s dedicated machine concept of the NB 151 provides the best solution for efficiently machining of these parts.
