Mechanical Processing Of Ordinary Cast Aluminum Parts

1. Aluminum castings are lightweight and have better specific strength

Aluminum alloy has a much lower density than steel and cast iron, and the weight of castings is small, which can reduce the overall load of the machine and facilitate handling and assembly; After reasonable material selection and heat treatment, the strength can meet the requirements of most general mechanical loads, achieving equipment lightweighting.

2. Excellent cutting performance of cast aluminum parts.

The material has moderate toughness, low machining difficulty in turning, milling, drilling, boring, etc., low tool wear, high machining efficiency, and is easy to achieve high dimensional accuracy and surface smoothness, suitable for subsequent precision machining.

3. The molding freedom of cast aluminum parts is high, suitable for complex structures.

The casting process can directly form complex blanks with cavities, reinforcing ribs, irregular surfaces, and porous positions, without the need for extensive welding and splicing, reducing welding deformation, shortening the manufacturing cycle of parts, and reducing the number of assembled parts through integrated molding.

4. The corrosion resistance of cast aluminum parts is superior to that of cast iron/carbon steel.

Aluminum surface can naturally form an oxide protective film, which has good rust prevention performance in atmospheric and freshwater environments; It can also be equipped with surface treatments such as anodizing, spraying, and passivation to further enhance corrosion resistance and protective performance.

5. Cast aluminum parts have excellent thermal and electrical conductivity.

Outstanding heat dissipation capability, commonly used in various equipment casings, heat dissipation bases, and valve chambers, can quickly dissipate operating heat; Conductive properties can be used for partially grounded and conductive structural components.

6. Aluminum castings can reduce vibration and noise.

Compared to steel, cast aluminum parts have certain damping characteristics, which can absorb vibration, reduce equipment operating noise, and are suitable for various types of box, bracket, and frame components.

7. The raw materials for cast aluminum parts have good recyclability.

Aluminum alloy can be repeatedly recycled and remelted, with high material utilization and relatively controllable production energy consumption, which is more in line with green manufacturing requirements.

8. The cost of cast aluminum parts is suitable for small and medium-sized complex parts.

For parts with complex shapes, the comprehensive cost of casting aluminum blanks and machining is often lower than that of forging and milling whole aluminum plates, and small and medium batch production is more economical.

Additional explanation:

Ordinary cast aluminum parts are different from high-pressure heavy-duty special cast aluminum parts, and are not suitable for long-term extreme working conditions such as ultra-high pressure, strong impact, and high-speed erosion with hard particles.