Metallic articles having heat transfer channels and method of making
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United States of America Patent
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-
Mar 2, 1999
Grant Date -
N/A
app pub date -
Jul 8, 1996
filing date -
Jan 21, 1994
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Metallic articles having heat transfer channels are produced by solidification of molten metallic material about pre-formed channel defining members such that a solidified metallic deposit having heat transfer channels is formed. The channel defining members may be in the form of either solid elements (which are subsequently removed to leave the channels), or conduit elements (which may remain permanently embedded in the article). Moulds, dies, cores and other tools for use in moulding or casting of plastics and metals are particularly suitably formed by the process, the heat transfer channels being used for cooling of the respective articles during use. The molten metallic material is preferably deposited by spray forming utilizing one or more sprays of molten metallic material.
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