FORMING COOLING APERTURE(S) USING ELECTRICAL DISCHARGE MACHINING

A manufacturing method is provided. During this method, a preform component (60') is provided for a turbine engine. The preform component includes a substrate (74') comprising electrically conductive material having an outer coating (78') comprising non-electrically conductive materia...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
1. Verfasser:	KOONANKEIL, James M
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING COMBUSTION ENGINES ENGINE PLANTS IN GENERAL HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS JET-PROPULSION PLANTS LIGHTING MACHINE TOOLS MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING METAL-WORKING NOT OTHERWISE PROVIDED FOR NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES PERFORMING OPERATIONS STEAM ENGINES SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL TRANSPORTING WEAPONS WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OFELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKESTHE PLACE OF A TOOL
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	A manufacturing method is provided. During this method, a preform component (60') is provided for a turbine engine. The preform component includes a substrate (74') comprising electrically conductive material having an outer coating (78') comprising non-electrically conductive material applied over a surface of the substrate. A preform aperture is formed in the preform component using an electrical discharge machining electrode (144). The preform aperture includes a meter section (102) of a cooling aperture (64) in the substrate. The preform aperture also includes a pilot hole (152) in the outer coating. A diffuser section (104) of the cooling aperture is formed in at least the outer coating using a second machining process.