CNC four axis machining has numerous significant advantages, which make it widely used in modern manufacturing:

1、 High precision machining capability
Reduce clamping errors
In traditional three-axis machining, for complex shaped parts, multiple clamping is often required to complete the machining of each surface. And each clamping introduces clamping errors, resulting in a decrease in the accuracy of the parts. CNC four axis machining can complete the machining of multiple surfaces in one clamping, effectively avoiding positioning errors caused by multiple clamping, thereby ensuring the dimensional and shape accuracy of the parts. For example, when processing complex mechanical parts such as valve bodies with multiple inclined planes and surfaces, four axis machining can achieve extremely high positional accuracy between each machined surface.

Accurate surface machining
For parts with complex surfaces, such as wings and propellers in the aerospace industry, CNC four axis machining can cut along the normal direction of the surface by coordinating the rotation axis. This processing method can better ensure the accuracy and surface quality of the surface, achieve smaller surface roughness values, and produce smoother surfaces that meet strict design requirements.

2、 Efficient processing efficiency
Reduce processing steps
Due to the ability to complete multiple surface machining in one clamping, CNC four axis machining greatly reduces the number of machining processes. Compared to traditional machining methods, it does not require frequent replacement of fixtures and repositioning of workpieces, saving a lot of clamping time and auxiliary time. For example, when processing some prismatic parts, four axis machining can simultaneously process the side and inclined surfaces of the prism, while three-axis machining may require processing the side surfaces first, and then re clamping and processing the inclined surfaces. The efficiency of four axis machining is significantly higher.

Optimize tool path
The CNC programming of four axis machining can generate more reasonable tool paths based on the shape of the part and the machining requirements. By involving the rotation axis, the tool can approach the workpiece for cutting with a shorter path and a more suitable angle, reducing the tool's idle time. Meanwhile, for some parts that require layered cutting, four axis machining can better arrange the cutting path of each layer and improve cutting efficiency.

3、 Enhanced processing flexibility
Multi angle processing
The added rotation axis enables CNC four axis machining machines to achieve multi angle machining of workpieces. This is very advantageous for processing parts with special structures such as non vertical planes, oblique holes, and inclined slots. For example, in mold manufacturing, there are often some inclined cooling channels or demolding slopes on the mold. Four axis machining can easily process these special angle structures without the need for special fixtures or complex processing techniques.

Adapt to various shapes of parts
CNC four axis machining can effectively process both rotating and non rotating parts, as well as regular and complex shaped parts. It can handle simple rotating parts such as cylinders and cones, as well as non rotating parts with complex spatial curves and surfaces, such as sculpture models and complex mechanical structural components.

4、 Improve product quality and consistency
Stable processing process
CNC four axis machining is an automated machining process based on numerical control programs. As long as the CNC program is correct and the accuracy of the machine tool is guaranteed, stable machining quality can be achieved in mass production. The machining process of each part is carried out according to the same program and parameters, without fluctuations in machining quality caused by human factors such as worker fatigue, skill level differences, etc., thus ensuring the consistency of product quality.

Better surface quality
Four axis machining is more flexible in tool path planning and cutting parameter selection, allowing for the selection of appropriate cutting methods and tools based on the material and surface quality requirements of the parts. For example, by reasonably controlling the cutting speed, feed rate, and cutting depth, as well as optimizing the contact angle between the tool and the workpiece using the rotating axis, surface machining marks can be effectively reduced, the surface quality of the parts can be improved, and the product appearance can be more beautiful and the performance more reliable.