How to Choose the Right Material for CNC Machined Parts

Introduction

Material selection is one of the most important decisions when developing a CNC machined component.

The material affects not only the mechanical performance of the finished part, but also machinability, surface finish, dimensional stability, corrosion resistance, weight, and production cost.

Common CNC Machining Materials

Everich processes a wide range of engineering materials for customized components.

Aluminum

Aluminum is widely used because of its low weight, good machinability, and corrosion resistance.

It is commonly selected for applications where weight reduction and efficient machining are important.

Stainless Steel

Stainless steel provides good strength and corrosion resistance and is widely used in industrial equipment, medical equipment, food processing equipment, and other demanding applications.

Brass and Copper

Brass and copper are commonly used for electrical components, fittings, connectors, and components requiring good electrical or thermal conductivity.

Titanium Alloys

Titanium combines high strength with relatively low density and excellent corrosion resistance.

It is often considered for demanding aerospace, medical, and high-performance applications.

Engineering Plastics

Everich also processes engineering plastics such as POM, ABS, Nylon, PC, PEEK, PTFE, PVC, PEI, and other materials.

These materials can provide advantages such as low weight, chemical resistance, electrical insulation, or low friction depending on the application.

Material Selection Should Start With the Application

The best material is not necessarily the strongest or most expensive material.

Engineers should consider:

  • Required strength
  • Operating temperature
  • Corrosion environment
  • Wear resistance
  • Weight
  • Electrical or thermal requirements
  • Surface treatment
  • Machinability
  • Production volume
  • Overall cost

Choosing the appropriate material at the design stage can help avoid unnecessary manufacturing costs and performance problems later.

Need Help Selecting a Material?

If you are unsure which material is suitable for your CNC component, provide Everich with the application requirements and technical drawings.

Our engineering team can review the project and help identify suitable manufacturing options based on the required performance and production conditions.

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