System and method for machining workpiece and article machined therefrom

US11745279B2 · kind B2 · utility

Assignee

• General Electric Company · US

Inventors

• Yong Yang · Bengbu, CN
• Bin Wei · Mechanicville, US
• Meisam Salahshoor Pirsoltan · Niskayuna, US
• Ming Jia · Ottawa, CA
• Huiyu Xu · Hunan, CN
• Yibo Gao · Shanghai, CN
• William Thomas Carter · Galway, US
• Andrew Lee Trimmer · Niskayuna, US
• Prabhjot Singh · Guilderland, US
• Pinghai Yang · Niskayuna, US
• Yanzhe Yang · Schenectady, US

Key dates

• Filing date: May 5, 2017
• Grant date: Sep 5, 2023
• Expiry date: May 5, 2037

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P10/25
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A system is configured for machining a workpiece (100), the workpiece includes an interior surface (110) that defines an internal passage (112). The system includes an electrode (116) located within the internal passage and electrically isolated from the workpiece, an electrolyte supply, a power supply, and a remover. The electrolyte supply is configured for circulating an electrolyte in a gap between the electrode and the workpiece. The power supply is configured for applying a voltage between the electrode and the workpiece to facilitate smoothing the interior surface. The remover is configured for completely removing the electrode from within the internal passage after smoothing the interior surface.