Manufacturing method of impeller

A manufacturing method of an impeller, the manufacturing method includes: a step of forming an impeller shaped body in which a disc component part constituting a part of the disc, a blade component part constituting a part of the blade, and a cover component part constituting a part of the cover are...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	Sakai, Yasunori
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING COMBINED OPERATIONS DRESSING OR CONDITIONING OF ABRADING SURFACES ENGINE PLANTS IN GENERAL FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS GRINDING HEATING LIGHTING MACHINE TOOLS MACHINES OR ENGINES IN GENERAL MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING MECHANICAL ENGINEERING METAL-WORKING NOT OTHERWISE PROVIDED FOR NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES NON-POSITIVE DISPLACEMENT PUMPS OTHER WORKING OF METAL PERFORMING OPERATIONS POLISHING POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS STEAM ENGINES TRANSPORTING UNIVERSAL MACHINE TOOLS WEAPONS
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Beschreibung
Zusammenfassung:	A manufacturing method of an impeller, the manufacturing method includes: a step of forming an impeller shaped body in which a disc component part constituting a part of the disc, a blade component part constituting a part of the blade, and a cover component part constituting a part of the cover are integrated by laminating a metal layer to extend toward an outer side in a radial direction with respect to the axis by an additive manufacturing method using a metal powder; and a step of grinding the impeller shaped body, in which the steps are repeated a plurality of times, and the step of grinding the impeller shaped body includes a step of polishing an inner surface of the impeller shaped body constituting a part of the flow path.