Title:
METHOD FOR MANUFACTURING TIAL ALLOY IMPELLER, AND TIAL ALLOY IMPELLER
Document Type and Number:
WIPO Patent Application WO/2020/100550
Kind Code:
A1
Abstract:
This method for manufacturing a TiAl alloy impeller (2) includes: a rough material preparation step of preparing a rough material (1) of the TiAl alloy impeller, having a shaft portion (10) and a plurality of blades (20), wherein a thickness of an outside edge portion (21) of each blade (20) is set to be greater than a thickness (t2) of the outside edge portion (21) of each blade of the TiAl alloy impeller (2); and an additional machining step of subjecting each blade (20) of the rough material (1) to additional machining. In the additional machining step, one surface or both surfaces of a part of each blade (20) including at least the outside edge portion (21) is subjected to additional machining in such a way that the outside edge portion (21) of each blade (20) becomes thinner.
More Like This:
| JP5862759 | Internal combustion engine |
| JP2021134716 | WATER-COOLED EXHAUST TURBO SUPERCHARGER |
Inventors:
SHIMIZU TATSUYA (JP)
Application Number:
PCT/JP2019/041810
Publication Date:
May 22, 2020
Filing Date:
October 25, 2019
Export Citation:
Assignee:
TOYOTA JIDOSHOKKI KK (JP)
International Classes:
F02B39/00; B22C9/04; B22C9/22; B22F3/02; B22F3/105; B22F3/16; B22F5/04; B23K26/342; F01D5/28; F02C7/00; C22C14/00
Foreign References:
| JP2004052754A | 2004-02-19 | |||
| JP2016514798A | 2016-05-23 | |||
| JP2011174096A | 2011-09-08 | |||
| JP2018094817A | 2018-06-21 | |||
| JP2014141909A | 2014-08-07 | |||
| JP4469370B2 | 2010-05-26 |
Attorney, Agent or Firm:
SATO Tsutomu et al. (JP)
Download PDF: