Multi-axis numerical control electromachining of bladed disks
US6858125B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 27, 2002 |
| Grant date | Feb 22, 2005 |
| Priority date | — |
| Expiry date | Apr 1, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23H2400/10
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A multi-axis machine, with numerical control on each axis, is used to drive the tool and workpiece movements necessary to machining complex airfoil geometry. Tooling is typically made of a metal such as brass or other low cost material and rotates during machining. The tooling may be any shape(cylindrical, conical) and size depending on application. A DC power (continuous or pulsed) is used to provide voltage across the tool and workpiece. A medium such as water, de-ionized water, or electrolyte (such as sodium nitrite) is provided between the tool and workpiece. Workpiece metal is removed in a controlled manner by high intensity thermal erosion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.