Methods of making spray formed rapid tools

Method of making a rapid tool, comprising: making a plastic pattern of the tool by free form fabrication techniques following a computer aided design, the design having a base and no undercuts taken in a direction perpendicular to base; constructing a ceramic mold as the inverse of the pattern; sepa...

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Bibliographische Detailangaben
Hauptverfasser:	WHITE, DAWN R, SZUBA, JOSEPH A, WIKOSZ, DANIEL E
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CASTING CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL COMBINED OPERATIONS DIFFUSION TREATMENT OF METALLIC MATERIAL FOUNDRY MOULDING INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL MACHINE TOOLS MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL METAL-WORKING NOT OTHERWISE PROVIDED FOR METALLURGY OTHER WORKING OF METAL PERFORMING OPERATIONS POWDER METALLURGY PUNCHING METAL SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION TRANSPORTING UNIVERSAL MACHINE TOOLS WORKING METALLIC POWDER WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL
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Beschreibung
Zusammenfassung:	Method of making a rapid tool, comprising: making a plastic pattern of the tool by free form fabrication techniques following a computer aided design, the design having a base and no undercuts taken in a direction perpendicular to base; constructing a ceramic mold as the inverse of the pattern; separating the pattern from the mold by a separating movement in a direction perpendicular to the base to leave a surface defining a casting cavity within the mold; and thermally spraying tool steel particles against the casting cavity surface is a thickness exceeding 1 inch while rapidly cooling the sprayed particles to effect a net shape tool without the need for further working or heat treatment.