Mold for heat sink

Details Mold for heat sink Mold for heat sink

1999-02-05

2000-10-24

Tolan, Ed

Metal deforming

By extruding through orifice

Utilizing internal forming means

72467, B21C 2504

Patent

active

061349364

ABSTRACT:
A production method and its corresponding mold for manufacturing aluminum alloy heat sinks with extra high profile ratios. The mold comprises a feed section and a form section. The form section is made from a high strength mold steel and contains a plurality of fin forms. The form section includes one or more crossbeams supporting the fin forms. The feed section is generally coaxial with the form section. The mold allows the extrusion of aluminum alloy heat sinks with extra high profile ratios which are difficult to produce by other methods.

REFERENCES:
patent: 4187711 (1980-02-01), Lavochkin et al.
patent: 5774964 (1998-07-01), Fisher et al.
patent: 5813269 (1998-09-01), Yano
Maruzen, "Metals Handbook, Revised 4th Edition," Apr. 20, 1986, p. 819, Japanese Metals Congress.

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