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 o

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.