METHOD OF MANUFACTURING HEAT EXCHANGER COOLING PASSAGES IN AERO PROPULSION STRUCTURE

Methods and apparatus of an improved cooling structure having cooling passages are provided. A method includes forming pilot holes with an electrical discharge machine (EDM) drill near a heated flow surface. The pilot holes are then shaped with a wire EDM into cooling passages having a desired shape...

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Bibliographische Detailangaben
Hauptverfasser:	GETTINGER CHRISTOPHER, GUINAN DANIEL P, WEBSTER HENRY K, PHILPOTT JAMES B
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING COMBINED OPERATIONS FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEATGENERATING MEANS, IN GENERAL HEATING LIGHTING MACHINE TOOLS MECHANICAL ENGINEERING METAL-WORKING NOT OTHERWISE PROVIDED FOR OTHER WORKING OF METAL PERFORMING OPERATIONS RANGES TRANSPORTING UNIVERSAL MACHINE TOOLS VENTILATING WEAPONS
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Beschreibung
Zusammenfassung:	Methods and apparatus of an improved cooling structure having cooling passages are provided. A method includes forming pilot holes with an electrical discharge machine (EDM) drill near a heated flow surface. The pilot holes are then shaped with a wire EDM into cooling passages having a desired shape.