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AssigneeSKF Industrial Trading and Development Company, B.V.
InventorsManfred Krug, Siegbert Kessler
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A method for forming an arcuate electrode adapted for the electrolytic production of grooves in the arcuate surface of an article, in which grooves are first formed in a plane metal blank. The grooved blank is then reshaped to have a curvature corresponding to that of the article, and the grooved curved surface of the blank is coated with an insulating material. The insulating material is then removed from the surface of the blank, except in those areas overlying the grooves, and the thus bared portion of the blank is then eroded, for example, by etching, so that the residual insulating layer projects from the surface of the blank. In use, the thus formed electrode is employed as a cathode, with the projecting insulation being held in close contact with a corresponding curved surface of the article to be grooved. The article is connected as an anode, and an electrolytic liquid is directed to flow in the channels formed between the electrode and the article.
A method for producing an electrode for the electrolytic formation of a pattern of grooves in an arcuate surface of an article, comprising forming grooves in one side of a planar conductive blank, then reshaping said blank to have a curvature corresponding to said arcuate surface of said article, with said one side of said blank having a curvature opposed to that of said arcuate surface, then applying an insulating layer to said one side of said reshaped blank, then stripping said layer from said reshaped blank except in the regions thereof overlying said grooves, whereby a residual insulating layer remains on those areas of said reshaped blank overlying said grooves, and then recessing the stripped areas of said one side of said reshaped blank by eroding the material of said reshaped blank in those areas which are not covered by said residual insulating layer.
Dependencies are inferred from the claim text.