Method for assembling heat sink

摘要

A method for assembling a heat sink (3) with radial fins (31) is disclosed. The heat sink (3) includes a thermo-conductive base (20) and a fin set (30). The base (20) is provided with a plurality of troughs (21) and guiding grooves (22). Each guiding groove (22) is located between two adjacent troughs (21). The fin set (30) is composed of a plurality of fins (31). The method provides a mould (40) having a star shaped inner space (41) and edges (42). The heat sink (3) is compressed into the inner space (41) and the guiding grooves (22) are inserted by the edges (42) to make the troughs (21) deformed. The fins (31) are firmly pinched by deformed troughs (21).