Faraday Technology Corporation

Faraday Technology Marketing Group, LLC

United States of America As Represented by the Secretary of the Air Force

Lawrence E Gebhart

E Jennings Taylor

Jenny J Sun

Phillip O Miller

Chengdong Zhou

Robert P Renz

An apparatus for establishing more uniform deposition across one or more faces of a workpiece in an electroplating process. The apparatus employs eductors in conjunction with a flow dampener member and other measures to provide a more uniform current distribution and a more uniform metal deposit distribution as reflected in a coefficient of variability that is lower than conventional processes.

Electroplating cell with hydrodynamics facilitating more uniform deposition across a workpiece during plating

A method and apparatus for establishing more uniform deposition across one or more faces of a workpiece in an electroplating process. The apparatus employs eductors in conjunction with a flow dampener member and other measures to provide a more uniform current distribution and a more uniform metal deposit distribution as reflected in a coefficient of variability that is lower than conventional processes.

Electroplating cell with hydrodynamics facilitating more uniform deposition on a workpiece with through holes during plating

Method of operating an electroplating cell with hydrodynamics facilitating more uniform deposition on a workpiece with through holes

A sacrificial core ( ) defining a cavity in a metallic or non-metallic shaped article of manufacture, e.g., a casting ( ), is made from a metal that can be electrolytically dissolved. The sacrificial core ( ) is removed from the article ( ) by electrochemical machining. The sacrificial core ( ) may be a hollow shell ( ) incorporating an integral electrode ( ) within the shell and electrically insulated from the shell.

Removal of sacrificial cores by electrochemical machining

Electrochemical machining of metals and alloys is accomplished by using a pulsed electric current incorporating modulated reverse electric current. Reverse (cathodic) pulses are interposed between forward (anodic) pulses. The process is useful for electrochemical shaping of metals, electrochemically polishing metal surfaces, and electrochemical deburring of metal articles. The process is especially useful for electrochemical processing of metals and alloys that readily form passive surface layers.

Electrochemical machining using modulated reverse electric fields

A sacrificial cores in castings of metallic or non-metallic materials is made from a metal that can be electrolytically dissolved, and is removed from the casting by electrochemical machining. The sacrificial core may be a hollow shell incorporating an integral electrode within the shell and electrically insulated from the shell.

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Clayton, OH, United States of America

Lawrence E Gebhart