The difference between cold forging radiator and die-casting

There are significant differences between cold forging radiators and die-casting in multiple aspects. The following is a detailed analysis of the differences between the two:

1、 Manufacturing process

1. Die casting: Die casting is a metal casting process that applies high pressure to melted metal through the mold cavity, filling the mold and cooling it to solidify into the desired shape. Die casting technology is particularly suitable for manufacturing a large number of small and medium-sized castings, with advantages such as high production efficiency and good dimensional consistency. Die cast radiators are usually manufactured using metal materials such as aluminum alloy.

2. Cold forging: Cold forging is the forging process of metal at room temperature (below the recrystallization temperature of the metal), which causes plastic deformation of the metal through a mold to obtain the desired shape and size of the heat sink. Cold forged radiators have the advantages of high shape and size accuracy, good internal density, and high strength.

2、 Heat dissipation performance

1. Die cast radiator: Die cast radiators have a fast heat transfer speed and high heat dissipation efficiency. However, its heat dissipation performance may be affected by factors such as mold accuracy and metal material.

2. Cold forged radiator: Due to the high density and strength of the material inside, as well as the absence of gaps between the heat dissipation substrate and fins, the heat dissipation performance of cold forged radiators is usually better than that of die-casting radiators. In addition, the heat dissipation fins of the cold forging radiator can be made thinner and more numerous, increasing the contact area with the air and facilitating air convection heat dissipation.

3、 Appearance and Structure

1. Die cast radiator: The appearance and structure of die cast radiators are relatively simple, and heat is usually dissipated through heat sinks and heat pipes. Its structure is simple and there are no dynamic components, so the noise is very low.

2. Cold forged radiator: The appearance of cold forged radiator is fashionable and beautiful, and it can be processed through molds to form various complex shapes and structures. There is no gap between its heat dissipation substrate and heat dissipation fins, making the overall structure more compact.

4、 Cost and Price

1. Die casting radiator: The die casting process is relatively simple and the production cost is low, so the price of die casting radiator is relatively affordable. However, its mold cost is high and the mold production cycle is long.

2. Cold forging radiator: Although the cold forging process is complex, it has high production efficiency and material utilization rate. However, due to its high production process, accessories, and material costs, the price of cold forged radiators is usually higher.

5、 Applicable scenarios

1. Die cast radiator: Die cast radiators are suitable for scenarios where there are certain requirements for heat dissipation performance, but the cost budget is relatively limited. For example, some small and medium-sized electronic devices, lighting fixtures, etc.

2. Cold forged radiator: Cold forged radiators are suitable for scenarios that require high heat dissipation performance and can withstand high costs. For example, high-power LED lighting fixtures, high-quality electronic devices, etc.

In summary, there are significant differences between cold forged radiators and die cast radiators in terms of manufacturing processes, heat dissipation performance, appearance and structure, cost and price, and applicable scenarios. When making a choice, comprehensive consideration should be given based on specific needs and budget.