Welding Techniques for Aerospace Manufacturing

Welding Techniques for Aerospace Manufacturing

Within aircraft manufacturing, welding stands among the most demanding and precise fabrication processes. Every joint must withstand high stress, vibration, and extreme environmental conditions, leaving no room for error. Achieving that level of reliability requires advanced materials knowledge, specialized tooling, and carefully controlled processes.

Below, the experts at NMG Aerospace explore the specialized techniques, quality controls, and certifications that make aerospace welding a cornerstone of modern aircraft production.

The Importance of Aerospace Welding

Because every weld in an aircraft contributes directly to structural integrity and safety, the standards for aerospace welding are far higher than the standards for most industrial applications. Welds must remain stable under continuous stress, rapid temperature shifts, and constant vibration – conditions that demand both precision and proven process control. 

To meet these challenges, aerospace manufacturers rely on certified processes, traceable documentation, and materials expertise to ensure repeatable, high-quality results. The same principles guide every project at NMG, where our aerospace welding capabilities are supported by advanced equipment, NADCAP certification, and ongoing technician training. This ensures consistent, reliable results across aerospace components and assemblies.

Types of Welding Techniques Used by NMG

Aerospace components vary widely in design and function, which means no single welding method can meet every requirement. To support diverse aircraft manufacturing programs, NMG applies a range of specialized aerospace welding services designed for precision, repeatability, and strength.

NADCAP-Certified TIG Welding of Rigid Tubes and Frames

Tungsten Inert Gas (TIG) welding plays a critical role in NMG’s aerospace welding services. Our NADCAP-certified TIG processes deliver precise, clean welds for rigid tubes and aircraft frames. These welds maintain strength without adding unnecessary weight – a key requirement for seating systems and safety systems. Through both automated and manual TIG welding, NMG technicians ensure consistent bead profiles, minimal distortion, and smooth surface finishes suitable for structural and fluid-carrying components. 

Welding of Pressurized Vessels and Tanks

In modern aircraft manufacturing, pressurized vessels and tanks must meet strict performance and safety requirements. NMG’s welding experts specialize in high- and low-pressure assemblies used in fluid systems, waste management systems, and environmental control systems. Every weld joint undergoes visual inspection, pressure testing, and non-destructive evaluation to verify strength and integrity. This process ensures that our welding components perform dependably under the extreme conditions found in flight.

Thin-Wall Stainless Steel and Titanium Tank Welding

Achieving a perfect weld on thin-wall materials is one of the most challenging aspects of aerospace welding. NMG’s team is highly skilled in welding lightweight stainless steel and titanium tanks that deliver excellent strength-to-weight ratios. Our technicians use precision heat control, advanced fixturing, and real-time monitoring to prevent warping or burn-through. The result is a uniform, high-strength weld that maintains the dimensional stability and performance required for aerospace applications.

Custom Fixture Design, Tooling, and Process Controls

Consistent results in aerospace welding require precise control of every variable, beginning with the fixtures that hold each component in place. At NMG, our in-house engineering team designs and manufactures custom tooling and fixtures to maintain exact alignment and prevent distortion during welding. Each fixture is tailored to the assembly’s geometry, material, and tolerance requirements, giving our experts complete control over weld positioning, sequence, and heat input. Proprietary fixture designs, combined with advanced process monitoring and data tracking, allow our team to detect variations early and maintain repeatable quality across production runs.

How NMG Ensures Weld Quality and Precision

At NMG Aerospace, weld quality is never left to chance. Our aerospace welding services are backed by NADCAP certification and AS-9100:2016 and ISO 9001:2015 quality systems. Each weld is documented, traceable, and validated through strict processes integrated into our manufacturing and assembly operations. We maintain a robust culture of continual improvement – analyzing data, refining techniques, and investing in advanced equipment and in-house testing capabilities – to ensure we deliver precision and consistency at every step. 

Partner with NMG for Expert Aerospace Welding Services

As a trusted partner to global OEMs and Tier 1 & 2 suppliers, NMG Aerospace delivers reliable aerospace welding solutions for mission-critical aircraft components. From prototype development to full-scale production, our team provides the expertise, tooling, and certified processes you need to succeed in aircraft manufacturing. 

Contact us today to discuss your next project.

Mastering the Art of Aircraft Wheel and Brake Manufacturing

Mastering the Art of Aircraft Wheel and Brake Manufacturing

Aircraft wheels and brakes must perform critical functions under extreme duress. The aircraft braking process generates tremendous pressure and heat, which puts considerable strain on landing gear components.

Understanding these stressors during the landing gear design process is key to manufacturing airplane wheels and brakes that function as intended.

The Landing Gear Design Process

Effective landing gear design starts with a comprehensive understanding of the landing gear’s performance requirements and service environment. Manufacturers may ask a few questions to guide the landing gear design process, including:

  • How large and heavy is the aircraft?
  • Will the aircraft perform take-offs and landings primarily on well-maintained runways or unpredictable field sites?
  • How much heat will be generated by braking forces?

In some cases, a totally new landing gear assembly or component concept will call for a clean-sheet approach to the design process. However many manufacturers can use an existing landing gear design as a jumping-off point.

After the design stage, manufacturing will look slightly different for each component of the landing gear assembly.

Aircraft Wheels: The Manufacturing Process

Most aircraft wheels are two-part assemblies, called a split-wheel construction. The inboard and outboard wheel halves are designed differently, since the inboard wheel half drives the brake rotor. The two halves are bolted together, with a high-performance O-ring creating a tight seal.

Airplane wheels must be manufactured to withstand tremendous pressure and high heat from heavy braking. For this reason, the most common manufacturing methods for airplane wheels are casting and forging, since both result in incredibly strong wheels. Many aircraft wheels are made from aluminum alloy, but magnesium alloy is also a fairly common material choice. Once the wheel halves have been cast or forged, additional steps may be taken, such as:

  • Machining grooves or holes into the assembly
  • Heat treating
  • Finishing treatments, such as shot peening or anodizing

Brake Rotor: The Manufacturing Process

Manufacturing brake rotors for aircraft landing gear starts with designing and creating a mold, usually with a CNC mill or other machine. The aircraft brake rotor mold is filled with hot liquid iron and compacted to ensure durability. Once the rotor has been cast, a machinist may use precision milling techniques to create level surfaces and meet tight tolerances, and CNC drilling to make precise holes for heat to escape. The final steps of the aircraft brake rotor manufacturing process are polishing and finishing.

Brake Discs: The Manufacturing Process

Aircraft brake disc manufacturing begins with a steel, iron, or composite material plate. The basic shape of the brake disc, called a blank, is punched from the sheet. At this stage, two types of holes may be punched from the aircraft brake disc blank:

  • Process holes, for mounting the disc
  • Heat dissipation holes

The size and placement of these holes will differ depending on the design.

Further shaping of the blank may be achieved through heating, flattening, and extrusion. Edges and holes may also be chamfered.

Design and Manufacture with NMG Aerospace

NMG Aerospace has decades of aircraft wheel and brake manufacturing experience. We are proud to support aircraft manufacturers from the early stages of design and development to production design, manufacturing, and quality testing. With our deep knowledge of aircraft braking systems, airplane wheels, and landing gear assemblies, we can advise on nuanced design and production challenges.

With a broad range of manufacturing capabilities and over 40,000 square feet of machining space, NMG Aerospace is equipped to meet all of your aerospace manufacturing needs. Whether you are designing something new, updating an existing design, or seeking to solve a problem, you can count on NMG Aerospace for guidance.

To learn more about our aircraft brake and plane wheel manufacturing services and discuss a project, talk to a member of our team.