GROB Systems, Inc. offers the 5-axis Universal Mill/Turn Machining Centers, including the G350T, G550T and G750T models that are designed to handle the complex geometries of blisk manufacturing. The GROB machines offer high precision while consolidating multiple machining operations into a single set-up by leveraging 5-axis capabilities and mill/turn technology. Combining multiple operations reduces cycle times and labor costs, and also eliminates the need for additional equipment, resulting in cost savings. In addition, the durability and reliability of GROB machines result in longer tool life and reduced downtime, further lowering operating costs.
"The trend toward more complex curved shapes in blisk blades is driven by the need to improve aerodynamic efficiency and engine performance. These new geometries present significant challenges for machining, including maintaining tight tolerances, achieving smooth surface finishes and avoiding deformation or tool deflection during cutting," said Derek Schroeder, Universal Machines, Sales & Proposals Manager, GROB Systems, Inc. "Via true simultaneous 5-axis machining, dynamic and rigid machine design, advanced CAM integration and high-performance spindles and tooling support, GROB addresses these challenges to ensure the precise machining of complex blisks."
GROB 5-axis Universal Machining Centers, including those with mill/turn capabilities, have design features that offer increased precision, rigidity and efficiency, making them suited for aerospace blisk manufacturing. GROB's "tunnel" concept ensures that tool length does not impact the size of the part being machined. This design allows for machining large, complex components such as blisks without compromising tool accessibility or part quality. For aerospace manufacturers, this eliminates limitations on part size, enabling greater flexibility and scalability in production.
Additionally, GROB's Z-axis design provides high rigidity when the spindle is fully extended to the part. "Unlike vertical 5-axis machines, which are less rigid when extending the Z-axis, GROB machines maintain stability and precision even in challenging machining conditions. This advantage is critical for blisk manufacturing, where tight tolerances and consistent surface finishes are required," said a company spokesperson.
Other key differentiators on GROB machining centers include the horizontal spindle configuration, which offers greater chip evacuation and minimizes vibration for stable, high-speed operations. Dynamic drives and advanced cooling systems also enhance tool life and optimize material removal rates.
GROB also offers an "Accuracy Package" that is specifically designed to meet the high precision requirements of blisk manufacturing, where even the smallest deviation can impact performance and efficiency. This package combines advanced machine features and technologies to help ensure optimal accuracy throughout the machining process. Key components of the Accuracy Package include thermal stability provisions, high-precision measuring systems and compensation and enhanced axis calibration and volumetric compensation.
In addition, GROB automation technology ranges from pallet and part handling/storage systems to highly flexible, turn-key manufacturing lines. An automation solution can be customized to meet application requirements.
For more information contact:
GROB Systems, Inc.
Machine Tool Division
1070 Navajo Drive
Bluffton, OH 45817
419-358-9015
info.us@grobgroup.com