公开(公告)号：US11247249B2

公开(公告)日：2022-02-15

申请号：US16606545

申请日：2017-04-18

Applicant: General Electric Company

Inventor： Yibo Gao ,  Hong Zhou ,  Liming Zhang ,  Yong Liu ,  Yingna Wu ,  Jianping Wu

IPC: B08B3/10 ,  B08B7/00 ,  B08B3/08 ,  B08B3/12 ,  B08B7/04 ,  C23G5/00 ,  F01D25/00

Abstract: A method for removing oxide materials from a crack of a metallic workpiece comprises: infiltrating an alkali solution into the crack in a pressurized atmosphere or an ultrasonic environment; applying an energy to the crack to react the oxide materials with the alkali solution and form a resultant material; and rinsing the resultant material with an acid solution to remove the resultant material from the crack. The method is easier to penetrate into the inside of the cracks, in particular suitable for cleaning narrow and deep cracks.

公开(公告)号：US10562119B2

公开(公告)日：2020-02-18

申请号：US14710992

申请日：2015-05-13

Applicant: General Electric Company

Inventor： Lei Yang ,  Dong Liu ,  Renwei Yuan ,  Jianping Wu ,  Yuanfeng Luo ,  Howard Paul Weaver

IPC: B23H7/26 ,  B23H7/36

Abstract: A machining system for electromachining a workpiece that in one embodiment includes a machine tool, a cutting tool for performing the eletromachining, and a tool holding apparatus for conductively holding the cutting tool and coupled to the machine tool. The tool holding apparatus includes a holding element for holding the cutting tool and at least one solution releasing element. The solution releasing element is used to receive machining solution and release the machining solution onto a predetermined area of the cutting tool through at least one group of channels. Each group of channels includes at least two channels configured to respectively release the machining solution onto at least two adjacent sections in the predetermined area of the cutting tool.