Patent Number: 7,824,159

Title: Compressor, titanium-made rotor blade, jet engine and titanium-made rotor blade producing method

Abstract: What disclosed is to form an abrasive coating having abrasiveness at a blade pressure side of a deposition layer using a second electrode composed of a second molded body molded from a mixed powder including a powder of a metal and a powder of a ceramic or the second electrode processed with a heat treatment, generating pulsing electric discharges between the blade pressure side of the deposition layer and the second electrode in an electrically insulating liquid or gas, and welding a material of the second electrode or a reacting substance of the material of the second electrode on the blade pressure side of the deposition layer by means of energy of the electric discharges.

Inventors: Ochiai; Hiroyuki (Koto-ku, JP), Watanabe; Mitsutoshi (Koto-ku, JP), Goto; Akihiro (Chiyoda-ku, JP), Akiyoshi; Masao (Chiyoda-ku, JP)

Assignee: Ishikawajima-Harima Heavy Industries Co., Ltd.

International Classification: F01D 5/14 (20060101)

Expiration Date: 2019-11-02 0:00:00