CNC machining stands for Computer Numerical Control machining, and it is a manufacturing process that utilizes computerized controls to operate machine tools. CNC machines are programmed with instructions to move the cutting tool in a precise and controlled manner, resulting in the creation of parts and components with high precision and accuracy.

CNC machining is a versatile process that can be used to create a wide variety of parts and components, including:

  • Precision metal parts for the aerospace, automotive, and medical industries
  • Custom-made tools and dies
  • Prototypes for new products

CNC machining is a highly efficient process that can produce parts and components in a short amount of time. It is also a cost-effective process, making it a popular choice for manufacturers of all sizes.

Midwest Automatic Products is a leading manufacturer of precision CNC machined products. We have over 85 years of experience in the industry, and we are committed to providing our customers with the highest quality products and services.

If you are looking for a CNC machining company that can help you create precision parts and components, contact Midwest Automatic Products today. We would be happy to discuss your project and help you get started.

American Made Manufacturing - CNC Machining

How CNC machining works


The process begins with creating a 3D model of the part to be machined using computer-aided design (CAD) software. The model defines the specifications and dimensions of the final product.

CAM Programming

Once the 3D model is ready, it is converted into machine-readable code using computer-aided manufacturing (CAM) software. The CAM software generates the toolpaths and instructions necessary for the CNC machine to create the part.


The machinist or operator sets up the CNC machine by installing the required cutting tools, securing the raw material (typically metal or plastic), and loading the CNC program into the machine's computer.


Once the setup is complete, the CNC machine begins its operation. The computer controls the movements of the cutting tool, which follows the programmed toolpaths to shape and remove material from the workpiece.

Precision and Automation

CNC machining is known for its high precision and repeatability. The computer control allows for consistent and accurate production of parts, reducing human error.


After the initial machining is complete, secondary processes like deburring, polishing, or surface treatments may be applied to achieve the desired final appearance and functional properties.