Some Impressions of Electroplating in U.S.A.

The development of electrochemical machining methods is described and it is shown how the original process was improved by the introduction of automatic methods of controlling the inter-electrode distance and by pressure-feeding the electrolyte. Factors of importance in governing the rate of metal removal and controlling the shape of the workpiece are detailed and illustrated by reference to electrode design, electrolyte composition and filtration methods.