Many aerospace manufacturers don’t realize how much machining adds to cost and lead time until production volumes start to climb. In the past, many aerospace components have been machined from solid metal. Machining still serves a vital purpose, but it’s not as effective or affordable at higher volumes.
Powdered metallurgy (PM) has been a real game-changer for many aerospace applications, where sintered metal parts replace machined components. These parts deliver consistent performance, exceptional material properties, and many significant cost advantages.
Today, we’re exploring why PM is a great choice for aerospace component manufacturing, the types of applications where it stands out, and which materials are typically used in sintered aerospace parts.
Why PM Is Ideal for the Aerospace Industry
If you’re looking for a dynamic manufacturing approach that works seamlessly with aerospace requirements, PM may be exactly what you’re looking for, particularly for non-flight-critical components produced in mass quantities.
Precision and Repeatability at Scale
When you’re using PM, you can form complex geometries directly in the compaction process. It can be used to produce parts that are in near-net-shape and require little to no secondary machining. Once tooling is established, there is a real advantage for aerospace actuators, aerospace bearings, and other tight-tolerance components in that each and every part is produced with the same dimensional consistency.
Cost-Effective for Large-Volume Production
Since machining removes material, there is waste involved in the process along with longer cycle times and higher labor costs. Only the material required for the part is used by PM. Using PM, you pay less per unit in larger production runs, reduce scrap, and are better able to predict pricing, which is an appealing advantage for procurement teams managing long-term programs.
Material Efficiency and Performance
Sintered metal parts can be designed with the exact density, strength, and wear performance an application requires. Mechanical performance can be further enhanced by advanced sintering techniques, making PM components strong enough to withstand challenging aerospace conditions while maintaining weight efficiency.
Quality and Regulatory Compliance
The top aerospace components manufacturers need PM suppliers with robust quality systems. When PM manufacturing is backed by ISO 9001 certification and disciplined process control, repeatability and traceability come built in.
Types of Aerospace Applications
PM helps keep cost and variability in check when sourcing high-volume, non-flight-critical aerospace components.
Common aerospace applications include:
- Aerospace bearings. Sintered bearings offer resistance to wear and possess self-lubricating properties, making them ideal for use in actuators, motors, and mechanical assemblies.
- Sensors and aerospace actuators. PM supports tight tolerances and complex geometries required for actuator components, housings, and internal mechanisms.
- Structural and support components. Brackets, counterweights, and housings benefit from PM’s ability to produce repeatable shapes with minimal finishing.
- Galley and interior mechanisms. Latches, locks, and moving assemblies used in aircraft interiors are often produced in large volumes—an ideal fit for PM manufacturing.
Materials Used
Because aerospace parts operate in demanding conditions, having flexible material options, like PM, is critical.
Common PM aerospace materials include:
- Stainless steels (300 & 400 series). Chosen for corrosion resistance, strength, and temperature stability.
- High-temperature sintered steels. Designed for applications exposed to heat and mechanical stress.
- Iron and low-alloy steels. Cost-effective options for structural and load-bearing components.
- Copper, bronze, and brass alloys. Ideal for aerospace bearings and components requiring good thermal or electrical conductivity.
- Specialty alloys. Engineered for unique performance requirements, including wear resistance or magnetic properties.
Contact Compax to Learn How Your Project Can Benefit from PM
Sintered metal parts are a smart alternative to machining for high-volume aerospace projects. PM helps aerospace manufacturers meet challenging goals while maintaining quality and delivery expectations.
If you’re exploring options for aerospace actuators, bearings, or other high-volume components, an experienced PM partner can make all the difference. At Compax Inc, we provide full in-house PM capabilities from design support and material selection to compaction, sintering, and secondary operations, all backed by ISO-certified quality systems.
Contact us today or request a quote from Compax to explore affordable PM solutions for your aerospace project.