| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a method of tightly joining fins of a heat sink by which the breakdown of a punch pin or a knife is reduced, manufacturing costs are also suppressed and, simultaneously, the present shape satisfies the needs of diversified heat sinks. <P>SOLUTION: In the method of tightly joining the fins 31 of the heat sink 3, the heat sink 3 includes a thermo-conductive base seat body 20 and a fin set 30. A plurality of troughs and guiding grooves provided between two troughs are formed on the surface of the base seat body 20. The fin set 30 is provided with a plurality of fins 31 and, furthermore, a forming mold 40 having inner space 41 and compressing edges 42 are provided. When performing pressurizing tight joining stage, by opposing the forming mold 40 and the heat sink 3 to each other and pushing them, the heat sink 3 is fit into the inner space 41 of the forming mold 40, the compressing edges 42 are inserted into the guide grooves in the axial direction. By making the troughs deform by compressing them, the fins 31 are caulked by the deformed troughs and joined tightly and as one body. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
