What is CNC machine milling?
CNC machine milling is a subtractive manufacturing process that uses computer numerical control (CNC) to control the movement of cutting tools and workpieces to create custom parts, components, or products. In CNC milling, a rotating cutting tool, called an end mill or milling cutter, is used to remove material from a workpiece, resulting in a desired shape or profile.
CNC milling machines typically have three linear axes (X, Y, and Z) and can move the cutting tool and workpiece relative to each other in a coordinated manner to perform various milling operations, such as:
Face milling: Removing material from the top or face of the workpiece, producing a flat surface.
Peripheral milling: Cutting along the outer edge or contour of the workpiece, creating a specific profile or shape.
Pocket milling: Removing material from a cavity or pocket in the workpiece, often used for creating recesses or slots.
Drilling: Creating holes in the workpiece using a rotating drill bit.
Boring: Enlarging an existing hole or improving its roundness and accuracy using a boring tool.
Thread milling: Cutting threads into the workpiece using a thread mill or helical milling cutter.
CNC milling offers several advantages over conventional milling, such as:
Precision and accuracy: CNC milling machines are capable of producing parts with tight tolerances and high levels of precision.
Flexibility: CNC milling machines can create complex shapes and designs that would be difficult or impossible to achieve with manual milling.
Repeatability: CNC milling machines can produce multiple copies of the same part with consistent quality and accuracy.
Reduced lead time: CNC milling machines can quickly produce custom parts on demand, reducing lead times and enabling rapid prototyping.
CNC milling is used in various industries, including automotive, aerospace, electronics, and medical, to create a wide range of parts and components made from different materials, such as metal, plastic, and wood. The versatility and precision of CNC milling make it a valuable tool in modern manufacturing.
