CNC Machining Aerospace Parts: Benefits, Materials, Process & Custom Machined Parts for Aerospace

2023.2.4

CNC machining becomes a primary manufacturing process for Aerospace parts and components due to its advantages. In this article, let’s take a look at the benefits of CNC machining for aerospace, as well as custom CNC aerospace parts and materials used.

 

Why CNC Machining for Aerospace Parts

CNC (Computer Numerical Control) machining is used for aerospace parts due to several reasons:

– Precision: CNC machines offer high precision and accuracy in producing complex parts with tight tolerances.

– Repeatability: CNC machining ensures that every part produced is identical, which is crucial for aerospace applications where reliability is a key requirement.

– Versatility: CNC machines can produce parts from a wide range of materials, including aluminum, titanium, and composites, which are commonly used in the aerospace industry.

– Speed: CNC machines can produce parts quickly and efficiently, reducing production time and costs.

– Complex geometries: CNC machines can produce complex and intricate geometries with ease, which is essential for producing parts for aerospace applications that require advanced shapes and features.

 

Custom Aerospace Parts Produced with CNC Machining

Custom aerospace parts can be produced using CNC machining. Some examples of such parts include:

– Engine components: parts such as fuel injectors, nozzle guide vanes, and combustion chambers are produced using CNC machining.

– Landing gear components: parts such as struts, actuators, and braking systems are produced using CNC machining.

– Structural components: parts such as wing spars, fuselage sections, and nacelle components are produced using CNC machining.

– Avionics components: parts such as antenna mounts, wiring harnesses, and instrument panels are produced using CNC machining.

– Hydraulic components: parts such as valves, pumps, and actuators are produced using CNC machining.

 

The use of CNC machining for aerospace parts allows for tight tolerances, precise shapes, and accurate finishes to be achieved, which is crucial for ensuring the safe and efficient operation of aircraft.

Materials Used for CNC Aerospace Parts

CNC machining can be used to produce aerospace parts from a variety of materials, including:

– Aluminum alloys: 6061, 7075, and 2024 are commonly used aluminum alloys for aerospace parts due to their lightweight, high strength, and excellent corrosion resistance.

– Titanium alloys: Ti-6Al-4V is the most widely used titanium alloy for aerospace applications due to its high strength, low weight, and good corrosion resistance.

– Stainless steel: types such as 17-4 PH and 15-5 PH are used for aerospace parts that require high strength, high corrosion resistance, and improved fatigue resistance.

– Composites: materials such as carbon fiber-reinforced polymer (CFRP) and glass fiber-reinforced polymer (GFRP) are used for parts that require high strength-to-weight ratios and improved durability.

– High-temperature alloys: materials such as Inconel 718 and Hastelloy are used for parts that require high resistance to heat and corrosion.

 

The choice of material depends on the specific requirements of the aerospace application, including strength, weight, temperature resistance, and corrosion resistance.

Machining Processes for Aerospace Parts

The choice of machining process depends on the specific requirements of the aerospace part, including shape, size, material, and desired tolerance. Here are several machining processes used to produce aerospace parts.

– CNC Milling: a cutting process that uses a rotating cutting tool to remove material from a workpiece. CNC milling is used to produce parts with complex shapes and geometries.

– CNC Turning: a cutting process that uses a rotating workpiece and a stationary cutting tool to produce cylindrical parts. CNC turning is used to produce parts with round or cylindrical shapes, such as shafts and fasteners.

– EDM (Electrical Discharge Machining): a non-traditional machining process that uses electrical sparks to remove material from a workpiece. EDM is used to produce parts with intricate shapes and geometries, as well as to produce precise holes and cavities.

– Laser Cutting: a cutting process that uses a high-energy laser beam to remove material from a workpiece. Laser cutting is used to produce precise cuts with a high level of accuracy.

– Waterjet Cutting: a cutting process that uses a high-pressure stream of water to remove material from a workpiece. Waterjet cutting is used to produce parts with intricate shapes and geometries, as well as to cut delicate or heat-sensitive materials.

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