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AssigneeSprayforming Developments Limited
InventorsAlfred Richard Eric Singer, Richard Michael Jordan, Allen Dennis Roche
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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.
A process for producing an at least partially metallic article provided with heat transfer channel means, said process comprising spray depositing molten metallic material to form a solidified metallic deposit about pre-formed heat transfer channel defining means, wherein said pre-formed channel defining means comprises material having a melting point lower than the melting point of said spray deposited metallic material.
An at least partially metallic article comprising heat transfer channel defining means of a first microscopic structure embedded in a solidified spray deposited metallic material of a second microscopic structure, wherein the heat transfer channel defining means of the first microscopic structure comprises a material having a lower melting point than the melting point of the spray deposited metallic material of the second microscopic structure.
Dependencies are inferred from the claim text.