Title:
ブレード製造方法
Document Type and Number:
Japanese Patent JP5632620
Kind Code:
B2
Abstract:
A method of manufacturing a blade (20) for a turbomachine by superplastic forming and diffusion bonding a first layer (18), a second layer (16) and a membrane (2), the membrane (2) being disposed between the first and second layers (18, 16), the method comprising: applying a stop-off material in a first predetermined pattern between the first layer (18) and the membrane (2) so as to prevent a diffusion bond from forming between the first layer and the membrane across said first predetermined pattern; and applying the stop-off material in a second predetermined pattern between the second layer (16) and the membrane (2) so as to prevent a diffusion bond from forming between the second layer and the membrane across said second predetermined pattern; wherein the first and second predetermined patterns are arranged so as to allow a diffusion bond to be formed along the blade tip edge, the diffusion bond along the blade tip edge extending across the blade in a chord-wise direction; applying the first and second predetermined patterns so that over at least a first portion (36) of the blade chord at the blade tip, a greater portion of the first layer at the tip edge, extending in a span-wise direction, is diffusion bonded to the membrane than the opposing second layer.
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Inventors:
フィリップ・ブレナンド
Application Number:
JP2010040237A
Publication Date:
November 26, 2014
Filing Date:
February 25, 2010
Export Citation:
Assignee:
ロールス・ロイス・ピーエルシーＲＯＬＬＳ−ＲＯＹＣＥ ＰＵＢＬＩＣＬＩＭＩＴＥＤ ＣＯＭＰＡＮＹ
International Classes:
B23K20/00; B21D26/055; B21D53/00; B23K20/18; F01D5/14; F01D25/00; F02C7/00; F04D29/38
Attorney, Agent or Firm:
Ono Shinjiro
Kazuo Shamoto
Kobayashi 泰
Akio Chiba
Hiroyuki Tomita
Hoshino 修
Kazuo Shamoto
Kobayashi 泰
Akio Chiba
Hiroyuki Tomita
Hoshino 修