Manufacturing process of skived fins heat sink cutting and aluminum extrusion

For an air-cooled heat sink product, its effect depends on the air volume of the fan, but also on the design of the skived fins heat sink. A properly designed heat sink can make the computer run stably by relying only on the chassis fan when the computer is not overclocked or continuously fully loaded. It can be seen that the importance of the heat sink, and the heat dissipation effect of the heat sink is inseparable from its manufacturing process. Today's heat sink manufacturing processes include cutting, extrusion, stamping, die-casting and other technologies as the core, and more than a dozen specific manufacturing processes have been derived. Let me explain the manufacturing process of skived heat sink machine cutting and aluminum extrusion.

Strictly speaking, cutting is the abbreviation of a large class of manufacturing processes. For example, high-speed cutting, laser cutting, etc. belong to this category, but they have one thing in common with machine tools such as turning, drilling, milling, and grinding. In the process, in order to obtain some more special and fine shapes, it is necessary to use a cutting process. Mainly used for sheet metal forming (bottom surface, fin formation), radiator slotting, special pattern carving, etc.

The base of the skived fins heat sink is made by an obvious cutting process. The plane, corners and the logos of some manufacturers are all processed by the cutting process. The advantage of the cutting process is its wide range of uses, but the disadvantage is the equipment, mainly the tool wears quickly, most of which require manual participation or automatic control, and the cost is high.

Aluminum extrusion is to heat the aluminum alloy ingot to about 520~540℃, use mechanical pressure to make the aluminum liquid flow through the extrusion die made of die steel, and cool the aluminum liquid at the die exit to make it rapid After solidification, it becomes the primary embryo of the heat sink with a continuous parallel structure. After cutting the primary embryo, we can see our common skived fins heat sink.