What is CNC machining? Is it important for aluminum extrusion
CNC machining is the process of using CNC machines to perform machining operations such as metal cutting, drilling, milling, bending, and laser cutting.
CNC stands for Computerized Numerical Control. This type of machining utilizes pre-programmed instructions to control the relative motion between the tool and the workpiece to achieve precise and complex machining operations.
What is CNC machining:
It consists of three main parts: a computerized control system, an actuation system, and the body of the machine tool. The computer control system controls the movement of the machine tool by means of pre-written machining programs. While the machine body provides the mechanical structure and tools required for machining.
CNC machining can process a variety of metal materials, including stainless steel, aluminum alloy, copper and so on. It can realize the whole process of production from single piece to the whole piece, including mold manufacturing, parts processing, and general assembly.
Tolerance and Precision in CNC Machining
Conventional deep machining, such as milling centers, can be easily executed on aluminum profiles. However, it is difficult to achieve accuracy with consistency. And CNC machining’s are able to surpass them because of its reduced errors and lower failed machining.
Extruded aluminum has low density but high strength. Typically CNC aluminum machining has large tolerances, even down to 0.01 mm. CNC machines can machine unique and high quality aluminum extrusions. cnc milling is the perfect choice, the advantages are in the process, i.e., high precision and milling of the aluminum.
CNC machining can control the roughness of the surface of aluminum parts to meet specific requirements. Surface roughness of Ra 0.8 μm or less can usually be achieved, sometimes even below Ra 0.4 μm.
Geometric accuracy: CNC machining can also ensure that the aluminum extrusion of parallelism and perpendicularity and other geometric accuracy requirements. Parallelism and perpendicularity can often be achieved to within 0.02mm.
More precise CNC machining: 4-axis or 5-axis
If you need to machine very precise aluminum extrusions, then you may need a 4-axis CNC or 5-axis CNC, as they greatly increase the flexibility and accuracy of the machining by introducing an additional rotary axis (usually A, B and C). This type of CNC machining center allows the angle of the rotary axis to be adjusted so that the cutting tool can approach the workpiece in the best possible position for high precision machining.
Hugh Aluminum provides you with precision CNC extruded aluminum parts – we have three 4-axis CNC production machines and 600-1800 ton aluminum extrusion lines. If you are looking for extruded aluminum suppliers? Don’t hesitate to contact us!
CNC Machining Extruded Aluminum Parts
CNC machining aluminum technology produces parts and assemblies that help in a wide range of services (turning, milling and grinding). Today, carefully machined CNC machined aluminum extrusion parts are becoming more and more popular in the engineering field.
Below are some CNC machined aluminum extrusion parts:
- Electronic enclousers
- Aluminum heat sinks
- EMI housings
- Automotive parts
- Medical equipment
- Lighting Fixtures
- Aluminum Handles
Belows are the CNC machine for aluminum process in Hugh aluminum
Why is CNC machining important for aluminum extrusion?
1. High precision machining:
CNC machining uses CNC machine tools that can achieve high precision machining of aluminum profiles through precise programming and control. This high-precision machining ensures that the size, shape and surface quality of the aluminum profile meet the design requirements, improving the overall quality of the product.
2. Complex shape processing:
Aluminum extrusion often needs to be processed into a variety of complex shapes and structures to meet the needs of different industries.CNC machining has a strong machining capacity, and can easily process a variety of curved surfaces, hollowing, shaped and other complex shapes of aluminum profiles to meet the individual needs of customers.
3. High efficiency production:
CNC adopts automated production method, which can continuously and stably process, greatly improving the production efficiency. At the same time, CNC processing can also realize multi-species, small batch production to meet the diversified needs of the market.
4. Reduce labor intensity:
Traditional aluminum extrusion processing requires a lot of human and physical labor, while CNC realizes automated processing, reduces the physical labor of workers, and reduces the intensity of work.
The above is the role of CNC for extrusion aluminum industry.
To summarize
CNC machining is an important manufacturing process.CNC machining in the aluminum extrusion industry has the advantages of high precision, high efficiency, low labor intensity, environmental protection and sustainability, which provides strong support for the development of the aluminum extrusion industry.
