MANUFACTURING METHOD FOR GAS TURBINE MEMBER

PROBLEM TO BE SOLVED: To provide a manufacturing method for a gas turbine member simplifying the process and possible of reducing the manufacturing cost. SOLUTION: A laser beam 7 is emitted from a laser head 5 and irradiated on the surface of a stationary vane 1. A shaped hole part of a cooling hole...

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Bibliographische Detailangaben
1. Verfasser:	ICHIKAWA TADAO
Format:	Patent
Sprache:	eng
Schlagworte:	AIR INTAKES FOR JET-PROPULSION PLANTS BLASTING COMBUSTION ENGINES CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS ENGINE PLANTS IN GENERAL GAS-TURBINE PLANTS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES STEAM ENGINES WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a manufacturing method for a gas turbine member simplifying the process and possible of reducing the manufacturing cost. SOLUTION: A laser beam 7 is emitted from a laser head 5 and irradiated on the surface of a stationary vane 1. A shaped hole part of a cooling hole is formed by the irradiation. The opening portion 9 of the shaped hole part is elliptical. The shaped hole part is formed by irradiating the laser beam on the stationary vane 1, while rotating the optical axis of the laser beam. The rotating movement of the optical axis enlarges the region processed by the single irradiation. The number of the irradiation and the frequency of the positioning of the optical axis can be thus reduced. The rotating movement of the optical axis is attained by the circular motion of the laser head 5.