Analysis of taper produced in side zone during ecd

Abstract The full capabilities of electrochemical machining ( ecm ) have not been utilized in production, mainly due to some inherent problems associated with tool design. For example, the side wall generated during electrochemical drilling ( ecd ) of a cylindrical hole is tapered. To study the effect of process parameters on the taper produced during ecd , experiments were performed using brass as cathode, low alloy steel forgings and castings as anode and aqueous solution of NaCl as electrolyte. From the analysis of the results, some useful conclusions have been derived that would be helpful in controlling the taper produced by bare tool, bare bit tool or coated tool.