Metal working – Method of mechanical manufacture – Shaping one-piece blank by removing material
Patent
1988-10-26
1989-12-05
Moon, Charlie T.
Metal working
Method of mechanical manufacture
Shaping one-piece blank by removing material
291573R, 835083, 165 803, 165185, 361383, B23P 1304
Patent
active
048843318
ABSTRACT:
Unitary heat sink apparatus for use in removal of heat from a heat generating component is disclosed which includes a heat sink body formed by extrusion. Parallel fins extend outwardly a first predetermined distance for the heat sink body and are separated by a first predetermined number of grooves of a first predetermined depth and width. The ratio of the height of the fins to the width of the grooves is approximately four to one. The first predetermined number of parallel grooves are gang sawed to a second predetermined depth to provide a second and greater predetermined height to the parallel fins such that the new ratio of the second predetermined height of the fins to the width of the parallel grooves is increased to at least six to one. In another embodiment, the heat sink is then rotated ninety degrees and a second predetermined number of grooves are gang sawed at right angles across and through the parallel fins to provide a predetermined number of pins extending outwardly from the heat sink body.
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IBM Technical Disclosure Bulletin, vol. 11, No. 10, March 1969, (by J. R. Bryden).
Moon Charlie T.
Thermalloy Incorporated
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