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HexWeb® Acousti-Cap® Sound Attenuating Honeycomb
Find out more about how HexWeb® Acousti-Cap® enables aircraft engine designers to achieve superior acoustical performance.
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HexWeb® Acousti-Cap® Sound Attenuating Honeycomb
JEC Innovation Award winning HexWeb® Acousti-Cap® sound attenuating honeycomb enables aircraft engine designers to achieve superior acoustical performance, including dramatic noise reduction during takeoff and landing without a structural weight penalty. This marks an improvement on current technology which requires tradeoffs between weight and noise reduction.
HexWeb® Acousti-Cap® non-metallic honeycomb
HexWeb® Acousti-Cap® non-metallic honeycomb consists of permeable cap material embedded into a honeycomb core to create an acoustic septum. Customers specify the flow resistance characteristics, overall core thickness, and number of caps in a cell and insertion depth. The result is a product tuned to their acoustic requirements.
HexWeb® Acousti-Cap® honeycomb is used by GE and Rolls-Royce to save weight and reduce engine noise by up to 30%. The GENX-2B engine, with HexWeb® Acousti-Cap® honeycomb, powered the first flight of the new Boeing 747-8 and is also used in the LEAP engine on the latest Boeing 737MAX.
Benefits of Acousti-Cap® sound attenuating honeycomb
HexWeb® Acousti-Cap® honeycomb provides marked noise reduction in aircraft engines which means:
- Lower landing fees at airports – a recurring cost saving
- Increased fleet flexibility
- Improved cabin comfort
- Reduction in other acoustic treatments, resulting in lower weight and costs
“The use of Hexcel’s AcoustiCap® and HexPly® carbon fiber prepreg in combination with the AleniaAermacchi patented process has resulted in the design and manufacture of a state-of-the-art acoustic panel.” — AleniaAermacchi Senior Design Engineer.
Aluminum HexWeb® Acousti-Cap® sound attenuating honeycomb
The aluminum version of Acousti-Cap® honeycomb provides comparable broadband noise reducing performance to its non-metallic counterpart. It was developed in 2010 for use in applications where thermal conductivity is important.
Aluminum Acousti-Cap® honeycomb can withstand temperatures of up to 350°F/175°C during fabrication of the nacelle core blanket and is able to be manufactured using industry-standard techniques for forming, joining, cutting and machining.
Engineering Starts Here
Technical Resources
Find all the documentation you need to evaluate, specify, and implement Hexcel honeycomb core.
Other
| Products | Description | Downloads |
|---|---|---|
| HEXWEB® HONEYCOMB CROSS REFERENCE GUIDE | HexWeb® Honeycomb Cross Reference Guide | Global Version |
Aramid
| Products | Description | Downloads |
|---|---|---|
| A1 & A10 | A1 & A10 High Strength Nomex Aramid / Phenolic Resin | EU Version |
| HRH-10 | HRH-10 Nomex Aramid Fiber / Phenolic Resin | EU Version |
| HRH-10 | HRH-10 Nomex Aramid Fiber / Phenolic Resin | US version |
| HRH-310 | HRH-310 Nomex Aramid Fiber | US Version |
| HRH-36 | Para-Aramid/Phenolic Core | EU Version |
| HRH-36 | Para-Aramid/Phenolic Core | US version |
| HRH-49 | HRH-49 Woven Kevlar | US Version |
| NONMETALLIC FLEX-CORE | Nonmetallic HRH-10 Flex-Core | US Version |
Aluminum
| Products | Description | Downloads |
|---|---|---|
| ALUMINUM FLEX-CORE | Flex-Core Formable Aluminum | US Version |
| CR III | CR III 5052 & 5056 Corrosion Resistant Specification Grade Aluminum | US Version |
| CR-PAA | CR-PAA Phosphoric Acid Anodized Aluminum | US Version |
| RIGICELL® | Rigicell™ Corrugated Aluminum | US Version |
Glass
| Products | Description | Downloads |
|---|---|---|
| HDC | Heavy Density Core | US Version |
| HFT | Fibertruss HFT Fiberglass / Phenolic | US Version |
| HRH-327 | HRH-327 Fiberglass Reinforced Polyimide | US Version |
| HRP | HRP/Fiberglass / Phenolic | EU Version |
| HRP | HRP/Fiberglass / Phenolic | US version |
| NONMETALLIC FLEX-CORE | Nonmetallic HRP Flex-Core | US Version |