What is CNC Milling?

CNC milling is an advanced cnc processing technology. Its processing method is that the workpiece is fixed on the table, and the tool is rotated by the spindle of the machine tool. It combines traditional milling technology with computer, and realizes extremely precise processing through program control.

CNC milling

CNC Milling Processing Steps

Design and Programming
Use CAD software to design a three-dimensional model of the workpiece, and then convert it into a corresponding CNC milling program.

Adjust the machine tool
Install appropriate tools and fixtures and adjust the workbench as required.

Upload program and artifact models
Load the written program and workpiece model into the control system of the CNC milling machine, and at the same time, fix and align the raw materials.

Start processing
According to the set program, start the milling machine for processing.

Monitor and adjust
During the machining process, necessary adjustments and optimizations are made by monitoring indicators such as cutting force, tool wear, and machined surface quality

Completion and Inspection
After the processing is completed, the necessary cleaning and quality inspections are carried out.

CNC Milling Processing Cycle

In fact, according to different factors, it is impossible to give a fixed processing cycle, we can only make estimates based on these influencing factors:

Artifact complexity

The shape, size and complexity of the workpiece have a direct impact on the machining cycle.

Cutting parameters

Different cutting parameters affect cutting efficiency and machining time.

Material type

Machining harder materials may require longer cutting times.

Machine performance

High-performance machine tools can usually achieve higher processing efficiency and shorter processing cycles.

Tool Selection and Tool Life

Reasonable selection of tool types and tool parameters can improve processing efficiency and reduce processing time.

Machining accuracy requirements

For workpieces with higher precision requirements, more toolpaths, smaller feeds and more finishing steps may be required, resulting in longer cycle times.

cnc milling parts

Development Trend of CNC Milling Technology

High Speed Machining

With technological advancements in machine tools and improvements in cutting tools, CNC milling is moving towards greater speed and efficiency. The application of high-speed cutting technology can greatly shorten the processing cycle and improve production efficiency.

Multi-Axis Control

Traditional CNC milling is usually three-axis control (X, Y, Z axes), while modern CNC milling is developing towards multi-axis control. Multi-axis control can realize more complex cutting paths and more flexible machining operations, and can process more complex workpieces.

Automation and Intelligence

Automation and intelligence are important trends in the development of CNC milling technology. Automate production lines by integrating functions such as automatic loading, unloading, tool changing and workpiece measurement. In terms of intelligence, with the help of artificial intelligence and machine learning technology, functions such as adaptive cutting parameter adjustment, fault detection and prediction can be realized, and production efficiency and quality can be improved.

High Precision Machining

With the advancement of science and technology, CNC milling technology is developing towards higher precision. By improving the machine tool structure, control system and sensor technology, more accurate machining can be achieved to meet the demand for high-precision workpieces.

Fusion Manufacturing Technology

The integration of CNC milling and other manufacturing technologies is also a development direction. For example, combined with additive manufacturing (3D printing) technology, more complex workpiece processing can be realized; combined with advanced surface treatment technology, the surface quality and function of the workpiece can be improved.


Overall, the development trend of CNC milling technology is towards more efficient, more precise, more intelligent and more flexible, in order to meet the continuous evolution and innovation needs of the manufacturing industry.

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