Method of fabricating one-piece formed heat dissipation structure

Abstract

A method for manufacturing an integrally molded heat dissipation structure includes pushing a metal blank through a molding body to form an extruded profile, wherein the extruded profile includes a first surface, a second surface, and a plurality of ridges protruding from the first surface and arranged continuously. A first cutting process is performed on the plurality of ridges of the extruded profile to form a plurality of partition channels and ridge-shaped heat dissipation strips adjacent to each partition channel, wherein the plurality of partition channels penetrate the plurality of ridges in a direction perpendicular to the first surface and extend to the first surface.

Claims

1. A method for manufacturing a one-piece heat dissipation structure, comprising: A metal billet is pushed through a molding body to form an extruded profile, the extruded profile including a first surface, a second surface and a plurality of ridges protruding from the first surface and arranged continuously; and a cutting process is performed on the plurality of ridges of the extruded profile to form a plurality of partition channels and ridge heat dissipation strips adjacent to each partition channel, the plurality of partition channels penetrating the plurality of ridges in a direction perpendicular to the first surface and extending to the first surface; and another cutting process is performed on the first surface of the extruded profile to form a plurality of fins protruding from the first surface; wherein the extruded profile also includes a plurality of hollow portions, the plurality of hollow portions penetrating the plurality of ridges in a direction parallel to the first surface and connecting the plurality of partition channels and the plurality of fins.

2. The method for manufacturing the integrally molded heat dissipation structure as described in claim 1, wherein after forming the extruded profile, the manufacturing method further includes: Another cutting process is performed on the second surface of the extruded profile to form a plurality of slots that penetrate the first surface and the second surface, and the plurality of slots connect the plurality of partition channels.

3. The method for manufacturing the integrally molded heat dissipation structure as described in claim 1, wherein after forming the plurality of ridge-shaped heat dissipation strips, the manufacturing method further includes: Another cutting process is performed on the multiple ridge-shaped heat sinks to form a plurality of serrations on the outer surface of each ridge-shaped heat sink.

4. The method for manufacturing the integrally molded heat dissipation structure as described in claim 1, wherein after forming the plurality of ridge-shaped heat dissipation strips, the manufacturing method further includes: Another cutting process is performed on the multiple ridge-shaped heat sinks to form a plurality of serrations on the inner surface of each ridge-shaped heat sink.

5. A method for manufacturing an integrally molded heat dissipation structure as described in claim 1, wherein after forming the extruded profile, the manufacturing method further includes: The extruded profile is perforated to form multiple hollow sections, and the multiple hollow sections penetrate the multiple ridge sections in a direction parallel to the first surface.

6. A method for manufacturing an integral heat dissipation structure as claimed in claim 1, wherein the molding body includes a molding hole portion, which includes a ridge profile having a plurality of continuously arranged ridges, such that the metal blank is extruded through the molding body to form an extruded profile including the first surface, the second surface and the plurality of ridge portions.

7. A method for manufacturing an integrally molded heat dissipation structure as described in claim 6, wherein the shaped hole includes an upper toothed portion, such that the metal blank is pushed through the shaped body to simultaneously form a plurality of concave and convex teeth.

8. A method for manufacturing an integral heat dissipation structure as described in claim 6, wherein a plurality of spaced-apart hollow plastic bodies are provided within the ridge-shaped outline of the plastic body, so that the extruded profile formed after the metal blank is pushed through the plastic body simultaneously forms a plurality of hollow parts.

9. A method for manufacturing an integral heat dissipation structure as described in claim 8, wherein the hollowed-out part molded body includes a toothed portion, such that after the metal blank is pushed through the molded body, a plurality of concave and convex teeth are formed on adjacent hollowed-out parts.

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