When it comes to CNC, of course, many people may not know what it means. It is the abbreviation of "Computer Numerical Control", which means computer numerical control. CNC is suitable for processing small-batch customized products, meeting the processing requirements of high-precision and complex shapes, and for batch production of products with high quality requirements. After the zinc die casting or aluminum die casting is completed, we will decide whether to carry out CNC machining according to the specific situation.However, why are CNC products so expensive? Let's talk about this topic today. In summary, there are mainly the following reasons:

I. High Equipment and Maintenance Costs

1.High investment in high-end equipment:

CNC machining requires advanced CNC machine tools, such as high-precision five-axis simultaneous machining centers, whose prices may range from several million to tens of millions of yuan. These machine tools adopt high-precision components, such as high-precision guide rails, ball screws, motors, and complex control systems, which makes the cost of the machine tools themselves extremely high.

2.High equipment maintenance costs:

To ensure the accuracy and performance of the machine tools, regular maintenance is required. This includes replacing worn parts, such as high-precision ball screws, whose replacement cost may be as high as tens of thousands of yuan. In addition, the salaries of professional maintenance personnel are relatively high, and these maintenance costs need to be apportioned to the product costs.

II.Factors of Machining Costs

1.Limited material utilization and machining efficiency:

In CNC machining, in order to ensure accuracy, machining allowances are often reserved, which will reduce the material utilization rate and increase the material cost. Moreover, when machining parts with complex shapes, in order to ensure accuracy, the overall machining speed needs to be controlled, resulting in a long machining time and an increase in machining cost.

2.Rapid tool wear and high price:

CNC machining relies on various high-precision tools, which are relatively expensive. For example, cemented carbide tools wear quickly when machining certain hard materials. A high-quality cemented carbide milling tool may cost several hundred to several thousand yuan, and the cost of frequent tool replacement will also increase the product cost significantly.

III. Strict Requirements for Programming and Technology

1.High cost of professional programmers:

CNC machining requires professional programmers to write numerical control programs. They need to be familiar with the machining process, machine tool performance, and numerical control programming languages. Writing complex programs may take several days to several weeks, so the high salaries of these professional programmers are also part of the costs apportioned to the product costs.

2.Complex and costly process optimization:

For complex CNC products, the optimization of the machining process is relatively difficult. Technicians need to conduct a large number of experimental studies, and there may be waste losses during the process. These costs will eventually be apportioned to the prices of qualified products.

Ⅳ. High Costs of Quality and Accuracy Control

1.High price of testing equipment and the need for professionals:

To ensure the quality and accuracy of products, high-precision testing equipment such as coordinate measuring machines and laser interferometers are used. These equipment are expensive, and the testing process also requires professional personnel to operate, which also increases a lot of quality control costs.

2.Strict quality standards:

CNC products are often used in high-end fields such as aerospace, automotive, and medical devices. These fields have extremely high requirements for product quality and accuracy. To meet the standards, strict quality control measures need be taken during the machining process, which will also lead to an increase in product cost.

Having read this, I believe everyone has understood why CNC products are so expensive. After all, to obtain high-quality products, certain equipment and technology must be used as support.