公开(公告)号：US20180111210A1

公开(公告)日：2018-04-26

申请号：US15504792

申请日：2016-06-23

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Renwei YUAN ,  Xiaobin CHEN ,  Dong LIU ,  Yong WU

IPC: B23H7/12

CPC classification number: B23H7/12 ,  B23H1/04 ,  B23H3/04 ,  B23H7/22 ,  B23H9/14

Abstract: An apparatus for electrically machining including a rotatable shaft and an electrode for electrically machining is disclosed. The electrode is movably connected to the rotatable shaft. When the rotatable shaft is rotated, the electrode rotates together with the rotatable shaft and moves relative to the rotatable shaft under an action of centrifugal force. Further disclosed is a method for electrically machining including: movably connecting an electrode to a rotatable shaft; inserting the rotatable shaft into a hole in a workpiece, and keeping a gap between the electrode and the workpiece, wherein the hole has a first diameter; powering on the electrode and the workpiece; rotating the rotatable shaft in the hole to generate centrifugal force; and pushing the electrode relative to the rotatable shaft towards the workpiece under an action of the centrifugal force to remove a portion of a material of the hole.

公开(公告)号：US20170282267A1

公开(公告)日：2017-10-05

申请号：US15470016

申请日：2017-03-27

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Qing GAO ,  Renwei YUAN ,  Howard Paul WEAVER ,  Richard Leigh ADRIAN ,  Xiaobin CHEN

IPC: B23H1/04

CPC classification number: B23H1/04 ,  B23H9/10 ,  B23P15/006 ,  F01D5/34 ,  F01D9/04 ,  F01D9/044 ,  F05D2230/12

Abstract: An apparatus includes an electrode assembly comprising a carriage having a plurality of electrode holders, the electrode holders being respectively configured to detachably receive a plurality of electrodes, the electrodes include a plurality of first electrodes and a plurality of second electrodes. The first electrodes are configured for rough machining a workpiece by electric discharging or wire electric discharging to remove material from the workpiece, the second electrodes are configured for finish machining the rough machined workpiece by electric discharging to remove material from the rough machined workpiece.