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What Is CNC Machining?


What Is CNC Machining?

CNC machining is a manufacturing method where written code controls the machinery and tools. 

The code contains the entire machining process from start to finish, 

and the machinery follows the same set of instructions repeatedly,

 producing consistently accurate parts.  Contact us

CNC Plastic Machining

CNC Metal Machining

CNC machining, which stands for Computer Numerical Control machining, is a manufacturing process that utilizes computerized controls and machine tools to remove material from a workpiece. This subtractive manufacturing process is widely used for producing precision parts and components across various industries. CNC machining is capable of creating complex shapes with high accuracy and tight tolerances.

Here's how CNC machining typically works:

1.Designing the Part:

  • Begin with a detailed 3D model of the part or component you want to create. This model is usually created using computer-aided design (CAD) software.


  • The next step involves programming the CNC machine. This is where the toolpaths and cutting strategies are defined based on the 3D model. The programmer specifies how the cutting tool will move and engage with the workpiece.

3.Material Selection:

  • Choose the material for the workpiece. Common materials include metals (aluminum, steel, titanium,cooper,brass), plastics(ABS/PP/PC/PA/POM/PE), and composites.

4.Workpiece Setup:

  • Secure the raw material (workpiece) in the CNC machine. The machine may have different fixtures and clamps to hold the material in place during machining.

5.CNC Machine Operation:

  • The CNC machine is then set into operation. The programmed instructions control the movement of the cutting tool in multiple axes (usually three or more). The cutting tool removes material from the workpiece in accordance with the programmed toolpaths.

6.Tool Changes:

  • CNC machines can have multiple tools, and tool changes can occur automatically during the machining process. Different tools are used for various operations such as roughing, finishing, drilling, and tapping.

7.Quality Control:

  • Continuous monitoring and quality control are often performed during the machining process. Measurements may be taken to ensure the part's dimensions and tolerances are within specifications.


  • After the machining is complete, additional finishing operations may be carried out. This can include surface treatments, polishing, or coating to meet specific requirements.

CNC machining is versatile and widely used in various industries, including aerospace, automotive, medical, and electronics, among others. It offers high precision, repeatability, and the ability to produce complex parts with tight tolerances. CNC machines include milling machines, lathes, routers, and more, each suitable for specific applications. The CNC process is crucial in the manufacturing of prototypes, custom parts, and large-scale production runs.