The Axiom Materials Guide to Nomex Honeycomb Materials

Nomex honeycomb products are used throughout a variety of industries. Aerospace, automotive, and construction are the three big ones. As a Nomex honeycomb core supplier, Axiom Materials fully understands the critical nature of this lightweight, versatile, and durable material. We are happy to share our knowledge with customers.

As a composite material, one would expect a Nomex honeycomb product to be lightweight and strong. But there are other characteristics worth talking about. Once you understand the honeycomb structure and why it is one of the strongest building structures in nature, you will have a new appreciation for the Nomex honeycomb core.

Nomex Honeycomb Basics

Nomex is a brand of aramid fiber. Aramid fibers are strong and heat resistant synthetic fibers made from aromatic polyamides. Their durability and exceptional strength-to-weight ratio make them ideal for applications unsuitable for carbon and glass fibers. Bulletproof vests and other types of protective clothing immediately come to mind.

When utilized in a honeycomb core, aramid fibers make an organically strong structure even tougher. A honeycomb structure reinforced by aramid fibers remains exceptionally lightweight yet impressively robust, regardless of application. It is all in the hexagonal cells that perform two critical functions: reducing weight and maximizing strength.

Nomex Honeycomb Structure and Properties

If you have ever looked into a beehive, you are familiar with the honeycomb structure. The honeycomb consists of large numbers of interlinked cells that demonstrate impressive strength, despite the fact that each individual cell is quite weak on its own.

Honeycomb core manufacturers have taken advantage of this naturally strong structure to create panels that can be used to build everything from airplanes to satellites. There are two properties that make Nomex honeycomb so attractive:

• Temperature Resistance – Nomex fiber offers superior thermal resistance. A honeycomb core made with Nomex maintains its integrity at high temperatures.
• Moisture and Chemical Resistance – Similarly, Nomex fibers are resistant to both moisture and a variety of chemicals. It stands up very well to environmental exposure.

Aramid fibers are very impressive on their own. But when you combine them with the traditional honeycomb structure, the advantages of both are only amplified.

Why Manufacturers Build With Nomex Honeycomb

As a Nomex honeycomb core supplier, we work with companies in a variety of sectors to provide the most suitable materials for their processes. Nomex is a popular choice because of its durability. When you combine Nomex fibers with a honeycomb design, you get characteristics manufacturers absolutely love:

1. Reduced Weight

One of the primary advantages of honeycomb panels is lower weight without less strength. Based on that, it makes sense to manufacture interior aircraft cabin parts with honeycomb panels. But add aramid fibers to the equation and you make cabin design even better.

Additional weight savings introduced by honeycomb core structures are directly responsible for the world’s largest passenger aircraft getting bigger and faster by the day. If things continue along this path, we may see yet another golden age of aviation in the near future.

2. Built-In Versatility

The honeycomb design is versatile enough to be employed in a variety of industries. From aircraft and automotive manufacturing to building and road construction, honeycomb core panels can be adapted for nearly any need.

3. Cost-Effectiveness

This third and final characteristic is one that is not seen initially: cost-effectiveness. In reality, Nomex honeycomb materials are more expensive at the time of purchase. But they pay for themselves by reducing shipping costs, reducing energy consumption, and even reducing production time. What is saved by utilizing Nomex honeycomb more than pays for its higher acquisition costs.

Practical Applications for Honeycomb Cores

A honeycomb core product comprises three pieces: the honeycomb core itself and substrates on either side. A lot of its versatility comes from this design. Both the core and its substrates can be made of any number of materials, depending on the desired properties. Highly specialized designs can enhance performance significantly.

So what are the practical applications for Nomex honeycomb core products? Here are a few examples:

1. Aerospace Design

Weight is the holy grail of aerospace design. It is critical that aircraft be as lightweight as possible, especially as size increases. Therefore, honeycomb core panels are finding their way into:

• Fuselage panels.
• Aircraft wings.
• Interior flooring.
• Insulating panels.

Because of the natural strength inherent in the honeycomb structure, Nomex honeycomb panels retain their integrity even in flight. The reduced weight saves fuel and allows engineers to think bigger and faster for future designs.

2. Automotive Design

The same properties that make honeycomb cores ideal for aerospace also apply to automotive design and manufacturing. Honeycomb panels are making cars lighter and more fuel-efficient. They are actually seen as a key to making electric vehicle (EV) dominance a reality.

Automotive manufacturers now use honeycomb core products to build:

• Body panels.
• Interior parts.
• Structural elements.

Wherever weight can be reduced without compromising structural integrity, honeycomb cores are in the mix. Meanwhile, manufacturers are still utilizing plenty of carbon and glass fiber composites.

What to Consider When Choosing a Product

Even though Nomex honeycomb core products offer advantages that are hard to beat, one cannot assume that other products will always be inferior. The best materials for each project depend on project details, goals, and needs. That said, here are some things to consider when choosing honeycomb composites:

• Structure – Cell size, thickness, etc.
• Material – The fiber material designed to reinforce the structure.
• Manufacturing Techniques – Certain manufacturing techniques are incompatible with honeycomb materials.
• Bonding Methods – Honeycomb panels that must interact with adhesive need to be compatible with it.

In the critical applications aerospace and defense are known for, honeycomb core materials must undergo and pass rigorous testing. Designers cannot afford to choose the wrong material only to find out after spending a lot of time and money developing a product that will never be approved. So material choices should be informed by research.

Axiom Materials is committed to helping more manufacturers take advantage of honeycomb composites. As a Nomex honeycomb core supplier, we invite you to learn more about our products and how they can enhance your design and manufacturing.

FAQs

What are Nomex honeycomb cores made of?

Nomex is a particular brand of aramid fiber. Honeycomb cores made with the material feature it in the individual cell walls.

What are the advantages of honeycomb cores over other types of materials?

The honeycomb structure offers a superior strength-to-weight ratio. When combined with Nomex, you get a product that offers minimal weight, exceptional thermal resistance, moisture resistance, and impressive durability.

Which industries utilize honeycomb composites the most?

Honeycomb core products are used extensively across aerospace and automotive manufacturing. The construction industry is another heavy consumer.

Is Nomex honeycomb preferred for its feel saving capabilities?

Absolutely. Its lightweight nature translates into fuel savings for airplanes, automobiles, and other vehicles.

What are the most important factors when choosing a honeycomb product?

Engineers should consider application parameters along with cell size, cell thickness, and the amount of load the structure will carry.