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CNC MACHINING

CNC machining is a metal fabrication method where written code controls the machinery in the manufacturing process. The code determines everything from the movement of the cutting head and the part to spindle speed, RPMs, etc.

CNC as such can be applied in a huge variety of manufacturing processes and machinery. In this page we focus on machining operations that can be identified by their production of chips. This means the processes are substractive by nature and the equipment involved are oftentimes called cutting machine tools.

Referring to the page title, CNC machining can be defined as automatically and digitally controlled machining processes. Main machining processes include:

• Milling, where the spindle rotates removing material.
• Turning, where the cylindrical workpiece rotates while spindle is fixed removing the material
• Drilling, where a hole is cut into the workpiece
• Grinding, where a rolling, abrasive wheel removes light amounts of material
• Sawing where material is cut (into parts) with a blade.
• Finishing operations:-
  • Filing that is about light amounts of material removing, combining grinding and sawing and is used mostly in deburring
  • Polishing and brushing, where a smooth or shiny surface is created with abrasive process.