公开(公告)号：US20230405699A1

公开(公告)日：2023-12-21

申请号：US18252237

申请日：2021-11-24

Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI

Inventor： Tatsuya SHIMIZU ,  Masahiro AONO ,  Satoshi ENDO

IPC: B23H9/10 ,  B23H3/10

CPC classification number: B23H9/10 ,  B23H2400/10 ,  B23H3/10

Abstract: Electric discharge electrodes are disposed at equal intervals along a circumference about a rotary shaft, and provided so as to be capable of being brought into and out of contact with vanes such that one electric discharge electrode corresponds to one vane. The electric discharge electrodes each have an electrode surface along a surface to be machined of a corresponding one of the vanes. After the electric discharge electrodes each move radially inward toward the rotary shaft, the rotary shaft rotates and electrochemical machining is thus performed while the electrode surface and the surface to be machined are close to and thus face each other.

公开(公告)号：US20240091872A1

公开(公告)日：2024-03-21

申请号：US18038327

申请日：2021-09-24

Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI

Inventor： Tatsuya SHIMIZU ,  Masahiro AONO

IPC: B23H3/10

CPC classification number: B23H3/10

Abstract: An electrochemical machining device that electrochemically machines a preformed impeller including a plurality of blades arranged along an outer periphery of the impeller. The electrochemical machining device includes a discharge electrode having an electrode surface extending along a machined surface of one of the plurality of blades, and a first nozzle that is disposed adjacently to the discharge electrode and has a first outlet from which electrolyte solution is discharged, the electrolyte solution flowing into a space between the electrode surface and the machined surface along the electrode surface.

公开(公告)号：US20220003122A1

公开(公告)日：2022-01-06

申请号：US17292350

申请日：2019-10-25

Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI

Inventor： Tatsuya SHIMIZU

IPC: F01D5/28 ,  B22D21/00 ,  B22D25/02 ,  B22F3/105 ,  B22F5/04

Abstract: A method of manufacturing a TiAl alloy impeller includes a blank preparation step in which a blank of the TiAl alloy impeller is prepared, wherein the blank has a shaft portion and a plurality of blades, and a thickness of an outer edge of each of the blades of the blank is set so as to be larger than a thickness of an outer edge of a blade of the TiAl alloy impeller, and an additional work step in which an additional work is performed on each of the blades of the blank. In the additional work step, the additional work is performed on a first surface of a portion that includes at least the outer edge of each of the blades or the first surface and a second surface of the portion thereof.