Multi-drilling of acoustic parts
Jet engines are subjected to very strict standards to gradually reduce noise levels. To achieve these goals, they contain composite panels with hundreds of thousands of small-diameter holes, generally from 0.55 to 1.8mm. These micro-drilled engine panels act as sound traps.
For the past 20 years, and to respond to this very demanding quality and productivity criteria, CRENO has become an expert in “acoustic drilling” with 5-axis machines.
Spearheading industrial innovation, CRENO has developed an acoustic drilling Robot Cell using a Siemens NC-controlled Stäubli robot.
OUR MULTI-SPINDLE TECHNOLOGY: A WORLDWIDE PROVEN SOLUTION
Recognized expertise
- Over 15 drilling machines sold in Europe and North America for Safran, GE-MRAS, UTC Aerospace and Spirit AeroSystems
- Process validated by Airbus, Boeing, Bombardier, Comac and Mitsubishi
- High production performance: Up to 35 holes per second.
- Up to 28 spindles on one drilling head
- Drilling cycle below 0.8 seconds
Highly automatic
- Reduced operator intervention
- Friendly and ergonomic configuration
Continuous monitoring
- Drilling process control
- Drill bit breakage and wear detection
- Drill bit lifecycle management
Increased hole quality
- Diameters ranging from 0.55 to 2mm (0.021 to 0.08 inch)
- High precision and less delamination
- Individually controlled drill-hole depth
- No need to add additional finition
- Stability of the process
- Expertise in cutting tools
5-Axis Machine
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Micro drilling of acoustic panels dedicated to large parts
- High production level
- Multi-spindle drilling heads with up to 28 spindles
- Up to 35 holes per second (28 holes every 0.8s)
- High rigidity
Numerically controlled robot cells
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Robotic acoustic drilling dedicated to smaller or cylindrical parts
- Saves floor space using standard foundations
- Each spindle is individually assembled on a linear axis used for the drilling motion
- Easy and cost-effective spindle reconfiguration
- Ease of integration in industrial workflows (inline integration)
- Multi-spindle drilling heads with up to 12 spindles
- Up to 12 holes per second
- Siemens NC (ISO code)
