How does the cold forging process affect the performance of radiators?

The cold forging process has a significant impact on the performance of heat sinks, mainly reflected in the following key aspects:

1. Improve heat conduction efficiency

Cold forging process undergoes plastic deformation of metal materials at room temperature, which can refine the metal grains, reduce internal defects and pores, and thus improve thermal conductivity. Due to the denser structure of the cold forged radiator material, the thermal conductivity is improved, and heat can diffuse more quickly and evenly inside the radiator, effectively improving the heat dissipation efficiency.

2. Enhance structural strength

The plastic deformation of the material during the cold forging process is accompanied by work hardening, which makes the cold forging heat sink have high mechanical strength and rigidity, able to resist external stress without deformation or damage. This characteristic is particularly important for heat sinks that can withstand high temperatures or vibrations, ensuring their stable performance even in harsh environments.

3. Optimize the heat dissipation structure

Cold forging technology allows for the manufacture of complex heat dissipation structures, such as thin heat dissipation fins, microchannels, etc. These structures can significantly increase the heat dissipation area, promote air flow, and thus improve heat dissipation performance. In addition, the fins of the cold forged heat sink are integrated with the substrate and connected without gaps, making heat transfer more direct and effective.

4. Improve surface quality

Cold forging can achieve good surface smoothness, reduce the need for subsequent precision machining, lower surface roughness, and optimize the heat exchange interface, thereby improving heat dissipation efficiency. At the same time, the high smoothness of the surface also facilitates anodizing or other surface treatments, enhancing corrosion resistance and appearance texture.

5. Control dimensional accuracy

The cold forging process can accurately control the size and shape of the radiator, ensure tight fit between various components, reduce thermal resistance, and improve the overall efficiency of the heat dissipation system. The improvement of dimensional accuracy is also beneficial for standardized production and batch manufacturing, reducing production costs.

6. Reduce material waste

Cold forging is a near net forming technology with high material utilization rate. Compared with cutting, it reduces the generation of waste materials, not only lowers manufacturing costs, but also embodies the concept of green manufacturing, which is beneficial for environmental protection.

In summary, the cold forging process significantly improves the thermal conductivity efficiency, structural strength, heat dissipation capacity, and economy of heat sinks by improving material properties, structural design, and manufacturing accuracy, making it the preferred manufacturing technology for many high-performance heat dissipation solutions.