Aerospace CNC machining

The aerospace industry is one of the fastest growing and quick evolving industries in the world. Today, it is worth over $800 billion. Increasing focus on innovative designs, safety features, and fuel economy brings several challenges to manufacturers. Over the years, several manufacturing techniques have evolved across the world. Aerospace CNC machining is one of them. It is employed for building several critical components in this industry. Any small manufacturing error or imperfection can lead to disastrous results, which is why many original equipment manufacturers or OEMs rely on this machining technique.

Aerospace CNC Machining Capabilities

Our following CNC machining capabilities have helped us serve our clients efficiently over the years:

Common Materials Used for Aerospace Machined Parts

At Princeton Industrial, we work with the following materials to create aerospace machined parts.

  • Aluminum: Lightweight, strong, and durable are general requirements of aerospace machined parts. All these requirements are perfectly met by aluminum. It is one of the strongest materials on the earth. The strength and hardness of this material varies according to its alloys. The following are a few common alloys of this material.
  • Aluminum Alloy Series 6xxx: The alloy from this series features silicon and magnesium and offers excellent corrosion resistance, formability, and medium strength.
  • Aluminum Alloy Series 2xxx: The aluminum alloy in this series features copper and it possesses high strength and durability. The alloy assures excellent machinability and possesses good strength-to-weight ratio, and are used for creating fuselage and wing structures.
  • Aluminum Alloy Series 7xxx: The alloy comprises zinc, chromium, magnesium, and copper in different proportions. All these contribute to its excellent durability and strength. Aluminum alloy series 7xxx is generally used for building parts of military aircraft.

In addition to aluminum, we also work with the following materials to produce different aerospace machined parts.

  • Steel
  • Carbon Steel
  • Stainless Steel
  • High-stress alloys

Benefits of Partnering with Princeton for Aerospace Machined Parts

Aerospace machining has been one of our key services for several years now. We believe the following features gives our clients reasons to partner with us for all their small and large machining projects.

  • Princeton is an ISO 9001: 2015 certified company and has gained immense experience working with several small and large aerospace and defense companies across the US.
  • We can provide inspection reports for first article inspection and material as well as process lot traceability reports to meet the stringent requirements of the aerospace industry.
  • Everything from designing to shipping is performed at our well-equipped manufacturing facility in Elgin, Illinois. We can produce end-use components and aerospace prototypes for airline companies.
  • We possess vast experience working with several grades of aluminum and other metals, as well as composite materials. Our CNC machine systems can achieve tolerances up to 0.002 mm.
  • Our stringent part inspections and post processing systems allow us to assure high quality and accuracy that is expected from aerospace parts and prototypes.


As one of the promising aerospace machine shops in the US, we have had the privilege of working with several leading OEMs in the aerospace industry. The following are a few popular aerospace machined parts that we regularly work upon and deliver.

  • Shafts
  • Valve Components
  • Electrical Connectors
  • Castings
  • Housings
  • Filter Bodies
  • Structural Components


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