Precision machining of aerospace cnc parts - requirements for technology, materials, inspection, quality control, etc.

Aerospace is an important support for the manufacturing industry. From development to finished product, aerospace manufacturing plays the most important role. What aerospace manufacturing technologies are used? How to find the right material for aerospace parts? In this article, we will cover common aerospace manufacturing methods, materials, inspection and quality control.



Aerospace Manufacturing Technology
Once the part design is approved, production can begin. The manufacturing process should be selected according to the production volume and the required lead time.

Additive Manufacturing
Additive Manufacturing (AM) refers to the process of creating physical components from virtual 3D computer models by adding materials (usually layered). Common additive manufacturing techniques include 3D printing, sheet lamination, material extrusion, and more. Aerospace is one of the pioneering industries for additive manufacturing, which is characterized by small batches and manufacturer-specific adaptations. Additive manufacturing can be used to create unique geometries and lattice structures that reduce weight and aid in heat dissipation. Making semi-hollow parts with advanced materials to reduce weight while maintaining strength, in line with the development trend of aerospace products, is also an excellent technology. Additive Manufacturing is designed for low-volume aerospace parts,

CNC machining
Aircraft precision is critical, and from airframes to small parts, CNC machining services can precisely produce specific aerospace parts and tooling. For example, CNC machines can even create barely visible parts inside an engine, or modify an aircraft's wings with extreme precision to ensure that they work efficiently. CNC machining is a good choice when the finished part requires additional finishing accuracy, or when precise dimensions and a good surface finish are required.

Aviation Part Materials
Based on the unique characteristics and requirements of aircraft structures, complex parts in lightweight materials are preferred, thus determining which material is suitable for the industry. As modern technology advances, more and more alternative materials have emerged to create lighter, more aerodynamic aircraft that can withstand more extreme environmental conditions, such as new composite materials and alloys. Some popular aerospace materials are listed here.

– Stainless Steel: Stainless Steel 17-4 PH is widely used for aerospace CNC machining or 3D printing due to its high strength, good corrosion resistance, and good mechanical properties at temperatures up to 600°F.

– Aluminium: Aluminium has a high strength-to-weight ratio and is ideal for supporting high-load aerospace enclosures and brackets, plus it is easy to machine and cost-effective. For nearly a century, the aerospace industry has relied on aluminum to make parts. The most commonly used aluminum alloy in aerospace is 7075 aluminum, which is as strong as steel with good fatigue strength and average machinability.

– Titanium: Titanium is a combination of light weight, high strength, corrosion resistance and high temperature resistance. Today's commercial aircraft use far more titanium than previously designed aircraft. Titanium components are commonly used in the manufacture of fastening elements, airframes and landing gear for aircraft such as aircraft jet engines and spacecraft, as well as engine components including disks, blades, shafts and casings. Titanium 6AL-4V alloys make up almost 50% of all alloys used in aircraft. With a high weight-to-strength ratio, aerospace components made of titanium consume less fuel.

– Inconel: is a nickel-chromium superalloy commonly used for 3D printing of rocket engine components and other aerospace applications that require high temperature resistance.

– Composites: Including carbon fiber, glass and aramid reinforced epoxy resins, composites are lightweight and can be used to make fuel efficient aircraft. They can also withstand high resistance and fatigue and are suitable for making wings.

Aerospace Inspection and Quality Control

Inspection must be done after the manufacturing process, especially for aerospace parts, when it comes to quality control in the aerospace industry, every tiny part should meet specific quality standards and certifications. The most important certification for aerospace is AS9100D. AS9100D is the aerospace industry quality standard adopted from the ISO 9000/ISO 9001 standard.

DONGGUAN YIFENG METAL CO.,LTD is mainly engaged in the production and manufacture of non-standard precision hardware parts. It has been deeply involved in the industry for many years and has rich experience. If you have aluminum, copper, stainless steel,

Contact DONGGUAN YIFENG METAL for CNC machining, CNC lathe machining and five-axis machining service needs of iron, titanium alloy, plastic and other products, and we will provide you with an integrated solution.

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