Method and tool for electrochemical machining
AssigneeGeneral Electric Company
InventorsBin Wei, Hsin-Pang Wang
Life of this patent
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Abstract
A machining process for forming a raised area in a wall of a predrilled hole includes distributing electrolyte via a workpiece internal cavity to a number of predrilled holes. Next, position a template including at least one electrode coated with an insulating material in a pattern defining the raised area to be formed in the wall of the predrilled hole below the workpiece such that the electrode is positioned within a predrilled hole and machining by passing electric current between the electrode and the workpiece wall and circulating electrolyte through the hole.
Claims7
An electrochemical machining process for forming at least one raised area in a wall of a predrilled hole in a workpiece comprising:
- distributing electrolyte via a workpiece internal cavity to a plurality of predrilled holes,
- positioning a template including at least one electrode coated with an insulating material in a pattern defining said at least one raised area to be formed in the wall of said predrilled hole below said workpiece such that said at least one electrode is disposed within a respective predrilled hole;
- and
- machining said at least one raised area in the wall of the holes by passing electric current between the electrode positioned in the hole and the workpiece wall and circulating said electrolyte through said hole.
An electrochemical machining apparatus for forming at least one raised area in a wall of predrilled holes in a workpiece, comprising:
- a fitting for attachment of said workpiece;
- and
- a template including at least one electrode coated with an insulating material in a pattern defining said raised area to be formed in the wall of the predrilled holes;
- wherein said at least one electrode is disposed within a respective predrilled hole for machining at least one raised area in the wall of said predrilled hole.
Dependencies are inferred from the claim text.