The Benefits of Injection Molding in the Aerospace Industry

Injection molding has proven its benefits in a wide range of industries, especially the aerospace industry. Because of this, injection molding has become a popular option for manufacturing various aerospace parts.

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Injection molding machine

What is Injection Molding?

Injection molding is one of the most popular molding methods used to manufacture a wide range of plastic parts. This method relies on raw plastic material, an injection molding machine, and a mold shaped like the desired part. During the process, the injection molding machine melts raw plastic material, which is then injected into the mold. Once the plastic cools and solidifies, it becomes the final product.

Injection molding is widely used as it offers a repeatable, reliable, and cost-effective option for mass production.

Advantages of Injection Molding in the Aerospace Industry

The most important advantages that injection molding offers the aerospace industry include:

Precision Components

Injection molding offers a method of high volume production with repeatable precision. Precision parts are crucial in the aerospace industry, as a single error can have catastrophic consequences. Injection molding boasts tolerances of +/-.001’’ for optimal accuracy.

High Strength

High-strength thermoplastic resins, such as carbon fiber and glass-filled reinforced resins, produce durable plastic parts that can resist high temperatures and corrosion. This is critical for reliability in harsh aerospace environments.

Excellent Repeatability

Injection molding offers a repeatable option for large-scale production. Once the procedure is  defined and all product specifications and dimensions are met, the process is easily repeatable for creating thousands of aerospace parts without sacrificing precision.

Versatility

Since precision is vital, quickly adjusting with minimal disruption is a crucial advantage of injection molding. Injection molding can allow for quick and easy engineering changes without creating an entirely new mold.

Lightweight

In the aerospace industry, weight can affect both performance and cost. The lighter the components, the less fuel that is needed. Aircraft that are outfitted with lightweight plastic injection molded components will use less fuel compared to aircraft outfitted with heavier metal components. This translates to a significant cost difference over time.

Scalability

Injection molding allows for numerous mold designs that can include multiple cavities to produce various parts at once. Multiple molds can be constructed to meet high-volume production needs, or a single mold can be used as parts are required. This allows you to scale injection molding to your specific production needs.

Rapid Prototyping

With injection molding, plastic prototypes can be quickly created using less expensive molds, allowing you to test parts before going into full production. HARBEC’s prototype molds are typically quoted at 5-6 weeks.

An infographic explaining the advantages of injection molding in the aerospace industry

Aerospace Products Produced Using Injection Molding

Close-up view of jet engine blades

The aerospace industry uses injection molding to manufacture many different parts necessary for an aircraft, including:

Aerospace Injection Molding from HARBEC

Injection molding is an invaluable process for the aerospace industry. With over four decades of experience, HARBEC can produce superior injection molded components with quick turnaround times, reasonable prices, and exceptional quality. For more information or to get started on your injection molding solution, request a quote for our services today.

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