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The difference between CNC milling and CNC turning

2024-05-28

Pin milling and turning are common cutting processes in metal processing, and they have different applications and characteristics in the processing process.

Turning is a method of removing material by rotating the workpiece and using a single-edge tool. In the turning process, the tool moves in a straight line or curve relative to the workpiece to obtain the desired size and shape. This processing method is suitable for processing shaft, disk and other rotating parts, and can process outer circle, inner hole, end face, thread and so on. High precision, good surface quality, suitable for a variety of materials processing.

Pin milling usually refers to a machining method that uses a multi-edge tool to mill on a milling machine. In pin milling, the rotation of the tool is the main movement, and the workpiece or tool is fed to remove the material. Milling can process plane, groove, forming surface, etc., suitable for processing mold, box parts. Pin milling is efficient, but the accuracy and surface quality may be slightly lower than turning.
CNC milling and CNC turning

To summarize the main differences:

Exercise mode:
Turning: The workpiece rotates, the tool does the feed movement.
Pin milling: The tool rotates, the workpiece does the feed movement or the tool does the feed movement.
Processing object:
Turning: suitable for processing shaft, disk and other rotary parts.
Pin milling: suitable for machining plane, groove, forming surface, etc.
Machining accuracy and surface quality:
Turning: Usually high machining accuracy and better surface quality can be achieved.
Pin milling: Machining efficiency is high, but accuracy and surface quality may be slightly lower than turning.

Scope of application:

Turning: Widely used in all kinds of metal and non-metal parts processing.
Pin milling: Often used in mold manufacturing, machining complex shapes and mass production.
Both have their own advantages, in the actual production, often according to the structural characteristics of the parts and technical requirements to choose the appropriate processing method.

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