What is CNC? What is CNC good for? What are the disadvantages?

CNC is short for omputer number control. The direct meaning is that it is computer numerical control, which is a processing technology widely used in the manufacturing industry. It can also be said to be the symbol of the current manufacturing industry. CNC can easily realize multi-axis linkage Simultaneous processing is performed on multiple coordinate axes (including linear coordinates and rotational coordinates) on a machine tool, and it can be processed simultaneously with coordinated movements under the control of a computer numerical control system (CNC), such as the processing of curved surfaces. If you leave the CNC, It is almost impossible to process with ordinary machine tools

1. The number of tooling is greatly reduced, and complicated tooling is not required for processing parts with messy shapes. If you want to change the shape and size of the part, you only need to modify the part processing program for new product development and modification.

2. The processing quality is stable, the processing precision is high, and the repeatability is high, which is suitable for the processing requirements of special precision parts.

3. The production efficiency is high in the case of multi-variety and small batch production, which can reduce production preparation, machine tool adjustment and process inspection (process inspection refers to the products processed in each process and their impact to prevent unqualified products from flowing into the next process. The inspection of the main process elements of product quality) is recorded by the machining center, and the cutting time is reduced due to the use of the better cutting amount.

4. The most difficult part of traditional machinable conventional methods is to process complex surfaces, but CNC can do it, and even process some unobservable machining parts.

5. Comparison:

Ordinary milling machines have low mass production efficiency, and the processing quality is affected by the operator's technical level, and the deviation is large. Poor processing consistency

CNC machining has high efficiency in mass production, good machining consistency, stable quality, high degree of automation and low production cost.

6. Finally, let me say that CNC machine tools are expensive. When the number of processing is small, programming will take a lot of time, which is not cost-effective, and requires programmers to have a higher level.