CNC means Computer numerical control, which is an automated machine tool controlled by a program. It can automatically process any product or part directly according to a program pre-numbered by a technician. This article will give a detailed introduction to the advantages and disadvantages of CNC.
1. Automation
The entire machining process can be carried out automatically under the instruction of the program, which can greatly reduce the labor intensity of workers and human errors, make the machining time of each workpiece consistent and predictable, and eventually effectively improve productivity.
2. High precision
The typical accuracy of today's CNC machines has reached two to four-thousandths of an inch or 0.05 to 0.10 mm, with repeatability close to or better than eight-thousandths of an inch or 0.02 mm. This means that once a program has been validated, multiple identical parts can easily be produced with the same accuracy and consistency, controlling product quality while achieving mass production.
3. High flexibility
The machine is run by a computer program during machining, and it is convenient to set up and load different programs so that the machine can be quickly converted according to the needs of the workpiece being processed.
4. High efficiency
CNC machining can be performed in multi-coordinate linkage and can process complex zero points. The shape and size of the part can be changed by simply changing the CNC program, which can save production preparation time.
5. Complex profiles that are difficult to machine by conventional methods can be machined, even including some unobservable machined parts.
6. Higher production efficiency in the case of multi-species and small-lot production, which can reduce the time of production preparation, machine tool adjustment and process inspection.
1. Higher technical requirements for operators and machine maintenance personnel
2. CNC machining route is not easy to control, and no
