Method and apparatus for forming a heat dissipating element

Details Method and apparatus for forming a heat dissipating element Method and apparatus for forming a heat dissipating element

1998-11-12

2000-10-31

Tolan, Ed

Metal deforming

By extruding through orifice

With cutting

72338, B21C 2300

Patent

active

061384887

ABSTRACT:
An apparatus and a method for producing a heat dissipating element having a multiplicity of pins arranged in parallel rows and columns in longitudinal and transverse directions from a generally longitudinally extending extruded member having a base and a number of transversely spaced longitudinally extending ribs on the base. A cover frame having a number of transversely spaced longitudinal grooves is placed over ribs to establish a supporting relationship between the cover frame and the free ends of the ribs. The support provided by the cover frame to the ribs facilitates a subsequent cutting operation by a cutting tool on the ribs, thereby obviating potential damage to the ribs.

REFERENCES:
patent: 4056026 (1977-11-01), Panaritis et al.
patent: 4879891 (1989-11-01), Hinshaw
patent: 5072640 (1991-12-01), Greve et al.
patent: 5709138 (1998-01-01), Rimer
patent: 5774964 (1998-07-01), Fisher et al.
patent: 5832804 (1998-11-01), Dudley et al.

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