Skived heat sink machine folding and welding are the mainstream

The dense and thin skived heat sink machines we have seen are all made by folding and welding processes. During forming, a small section of specially designed protruding part remains on the edge of the fin. The fin is fixed in a customized mold, and the protruding part is bent and locked with each other to form a neatly arranged parallel fin. Combined with stamping, it is mainly used to manufacture parallel dense thin fins used in reflow soldering or air duct design.

The advantages of the folding method are obvious: the mechanical locking structure is simple, and the process is few; it can compensate for the interface impedance generated by the subsequent connection of the fin and the heat absorption bottom. A large amount of output can be achieved with a one-time equipment investment. Now many heat pipe cooling products on the market have fin connection methods that are stable and simple.

The heat dissipation form of welding is a familiar metal processing method. The most commonly used soldering method in skived heat sink machine processing is reflow soldering, also known as reflow soldering. In most current heat pipe radiators, the connection method between the heat pipe and the fin is welding. Because the degree of bonding at the welding point directly affects the heat dissipation effect, the cost of welding is relatively high.

In fact, in addition to the heat dissipation process forms we mentioned above, we can also often see heat sink processes such as forging and gear shaping. These processes still appear in our computer heat dissipation forms more or less, just because of cost or heat dissipation. The reasons for the effect have become less and less, but these still contribute to the development of the skived heat sink machine process.