Fabrication for high fin density heat sinks production of fin skived heat sinks

How to identify a skived fin heat sink?

It is fairly easy to identify a Skived Heat sink as the heat sink has a curve where the blade finishes its cut at the base of the heatsink as shown in the picture. In addition, the fins are not completely vertical, and curve slightly. This is more pronounced at the fins get taller.

 

Typical width of the plate fin is 20~~500 mm, but it is possible to manufacture up to 600 mm wide heatsinks. As a Skived heatsink is manufactured from a long block of material, the only is no real limit to length of the heatsink is the length of the block. Different heights can be achieved by machining the block of material. Any excess material is recycled to reduce wastage. Typical Finishes for Aluminum skived heatsink are Anodization, or Nickel Plated. Typical finished for Copper Skived heatsinks are Anti- Oxidant, or Nickel Plated.

Heat Sink Production by fin skiving-Production of skived heat sink machine

The Skived fin process produces heat sinks with 8~15% increasing of the cooling capacity as compared to the stitched fin process, 12~22% better thermal conductivity over extruded heat sinks and 62~74% over die-cast heat sinks.

Leading the heat dissipation with innovation high density ,high performance, high aspect ratio, excellent performance. Skived heat sinks are produced using a sharp knive that, as it passes over the material, curl up a small thickness of metal which is then bent vertically to form the fin. Skived fins are produced from a bar of material and then cut to length as required by the final application. The final heat sink can be machined using normal fabrication techniques. Because of the thin fins, care must be taken in handling to prevent damage. It is suggested that a shroud be placed over the fins to help prevent damage.