Tool Design for ECM: Correction Factor Method

[+] Author and Article Information
M. S. Reddy

TSG Dept., OMC Computers Ltd., Secunderabad, India

V. K. Jain, G. K. Lal

Department of Mechanical Engineering, Indian Institute of Technology, Kanpur, India

J. Eng. Ind 110(2), 111-118 (May 01, 1988) (8 pages) doi:10.1115/1.3187858 History: Received October 15, 1987; Online July 30, 2009


A simple model for tool (cathode) design for plane parallel electrochemical machining and electrochemical drilling has been proposed. Assuming the initial tool shape to be complementary to required work shape, the desirable and predicted anode profiles have been compared and the error between them has been evaluated. Using this error, the correction factor has been calculated to modify the tool shape. This procedure is repeated till the designed tool can produce an anode profile within the prescribed tolerance limits. Using this technique, tools for tapered, flat, exponential, parabolic, and nonstandard work shapes have been designed. Bare tools have been designed for straight and tapered sided holes. Comparison between analytical and experimental results shows a good agreement between them.

Copyright © 1988 by ASME
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