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What is cnc machining ,What is The principle of CNC machining

CNC machining—using computer programs (G-code / M-code) to control machine tools automatically—performs milling, drilling, turning, and other machining operations on materials such as metals and plastics, achieving high-precision, high-efficiency, and complex part forming. This article introduces the principles, processes, and advantages of CNC machining.

CNC machining (Computer Numerical Control) is a modern manufacturing technology that uses computer programming to generate digital instructions and control machine tools to automatically complete cutting, milling, drilling, turning, and other processing of materials such as metals and plastics, achieving high-precision and high-efficiency part forming.

The core is “digital control machine”, which eliminates manual operation and can stably process complex and precise components. It is the core processing method in industries such as machinery, molds, and automobiles.

CNC Milling Operations

The core principle of CNC machining is to control the machine tool to complete automated precision machining through preprogrammed programs. The specific process can be divided into four key steps：

1. Develop a machining program: First, draw a 3D drawing of the part using CAD software, and then convert the drawing into a program containing parameters such as machining path and cutting speed using CAM software. G-code and M-code are commonly used to clarify machine operation instructions.

Machine column

2. Program input system: Input the prewritten program into the control system of the CNC machine tool through USB, network, and other ways.

3. System parsing operation: The control system calls the decoding module to convert the program into a recognizable data formats , and then calculates the control instructions for each cycle through interpolation operation, and assigns them to the drive circuits of each motion axis.

Tool-setting method

4. Machine tool execution and closed-loop control: The drive circuit converts and amplifies instructions to drive the motor, which drives the movement of each axis of the machine tool. At the same time, the feedback device detects the motion status in real time, corrects errors, coordinates the relative motion between the tool and the workpiece, and finally completes the part machining.

If you require precision parts machining, our CNC machining services can help you achieve accurate manufacturing from design to finished product. Visit our website today for a quote, or contact our engineers to discuss your project!

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