What are the advantages and disadvantages of CNC machining

CNC stands for Computer number control. The direct meaning is that it is computer digital control (control), which is a technology widely used in the manufacturing industry. It can also be said to be the mark of the manufacturing industry. It can be easily realized by CNC. Axis linkage (Multi-axis linkage refers to the simultaneous processing of multiple coordinate axes (including linear coordinates and rotating coordinates) on a machine tool, and simultaneous coordinated movement under the control of a computer numerical control system (CNC).) Processing For example, the machining of hook face is almost impossible if you leave the CNC and use ordinary machine tools.

In addition, CNC can easily implement a flexible manufacturing system. In fact, it is not difficult to learn CNC. It can be said that as long as you can play mobile phones, you will use CNC. However, before learning CNC, it is best to learn first. The machining principle of ordinary machine tools [yuán lǐ], and the basic mechanical manufacturing knowledge of drawing [zhì tú] and tolerances, and then the effect is good. Simply put, ordinary machine tools are processed by people directly controlling the machine tools, while CNC is people who control the processing of the machine tools by controlling the CNC system, so as to achieve more complex and higher-speed processing.

① Reduce the number of tooling, and process messy-shaped parts without messy tooling. If you want to change the shape and size of the part, you only need to modify the part processing procedure (procedure), which is suitable for new product development and modification.

②The processing quality is stable, the processing precision (precision) is high, and the repeat accuracy is high, which is suitable for the processing requirements of aerobat.

③ In the case of many types (many) and small batch production, the production power is higher, which can reduce [xuē jiǎn] production preparation, machine tool adjustment and process inspection (process inspection means to prevent non-conforming products from flowing into the next process. The machining center calculates the time of the product processed by the process and the main process elements that affect the quality of the product, and the cutting time is reduced due to the use of a better cutting amount.

④ It can process messy shapes that are difficult to process by conventional methods, and even process parts that cannot be observed [guān cè].

The price of ordinary milling machines is low, but the efficiency is low in mass production, the processing quality is greatly affected by the technical level of the operators, and the processing consistency is not good. Cnc processing has high efficiency in mass production, good processing consistency and stable quality. However, the cost of machine tools is expensive, and programming takes a lot of time when the number of processing is small, which is not economical. Requires a higher level of repair personnel