①It Should Be Able To Ensure The Accuracy And Precision Of The Workpiece Being Processed.

①It should be able to ensure the accuracy and precision of the workpiece being processed.

CNC machining accuracy can reach 0.01 mm. However, many factories choose the wrong service provider, which leads to batch scrapping and ultimately heavy losses.

What is CNC machining

CNC, which is abbreviated from Computer Numerical Control, is called computer numerical control in Chinese. It uses pre-written programs, usually using G code language, to control the operation of machine tools.

G code is a CNC programming language with international universal characteristics. It will tell the machine tool which coordinate position it should move towards, at what speed it should move, and what the spindle speed is. This system can completely automate the machining process and does not require manual intervention.

The core advantages of CNC machining

Compared with traditional manual processing, the biggest advantages of CNC processing are accuracy and consistency. The tolerance of a part processed by a high-performance CNC machine tool can be controlled within 0.01 mm.

More importantly, the first product is almost exactly the same as the thousandth product. This kind of repeatability is difficult to achieve by manual processing. This advantage is particularly significant when conducting large-scale production.

Common CNC machining methods

In machine shops, the three most common CNC machining methods are CNC milling, CNC turning and wire EDM. CNC milling is suitable for processing planes, slots, holes and other structures, while CNC turning predominantly focuses on rotary parts.

Wire-cut EDM is good at processing hard materials and complex contours, such as molds and precision parts, all within its processing scope. These three methods cover most of the machining needs.

How to choose a CNC processing service provider

When choosing a CNC processing service provider, the first thing is to check its equipment configuration and processing capabilities. There is a situation where a five-axis linkage machining center can process complex curved surfaces, but a three-axis machine tool can only handle relatively simple structures.

Secondly, we need to examine the quality control system, which covers testing equipment, testing processes, and quality control personnel. It has a good quality management system to ensure that every batch of products meets the standards.

Cost structure of CNC machining

The cost of CNC processing is mainly composed of material fees, processing fees, mold fees and post-processing fees. Among them, the material fee is determined based on the size of the part and the type of material. There is a big difference in price between aluminum alloy and stainless steel.

The processing fee is related to the processing difficulty and working hours. Complex structures contain more processes and the working hours are longer. Knowing the cost components assists in budget control.

Application areas of CNC machining

High precision and high reliability are the characteristics required for aerospace parts. CNC machining can meet such stringent requirements and is widely used in aerospace, automobile manufacturing, medical equipment, electronic communications and other fields.

This is also the case in the field of medical devices. Precision parts such as implants must be processed according to CNC to reach standard levels. With the continuous advancement of technology, the scope of CNC machining applications continues to expand.

For you, what kind of difficulties have you encountered when choosing CNC machining services ? You are welcome to discuss and share your personal experiences in the comment area.