Method and machine for making a finned body
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United States of America Patent
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-
Oct 2, 2001
Grant Date -
N/A
app pub date -
Mar 25, 1999
filing date -
Nov 12, 1996
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A blank (12') of high-ductility material is formed with closely spaced thin fins (14) using a forming tool (18) which is rotatable about a tool axis (L) and comprises a set of flat circular space-apart forming discs (19) centered on the tool axis (L) and disposed side by side at fixed intervals along the tool axis (L) and in planes perpendicular thereto. The forming tool is displaced relative to the blank (12') at right angles to the tool axis (L) to cause the peripheral portions of the forming discs (19) during the cyclical movements of the forming tool (18) progressively to penetrate into the blank (12') and cause blank material to flow into the gaps separating the forming discs (19) and form planar fins (14).
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