After a brief survey of computational methods of predicting workpiece shape obtained by electro-chemical machining a method with some novel techniques is described. The predictions obtained are compared with experimental shapes and found to be within the normal repeatability of the process. It is concluded that the presence of hydrogen bubbles causes the experimental profile to depart from the predicted profile. Subtraction of a fixed small voltage from the applied potential is a sufficient correction to allow for the extra Ohmic drop caused by the bubbles.
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- Computation and Verification of Workpiece Shape in Electrochemical Machining
M. B. Nanayakkara
C. N. Larsson
- Palgrave Macmillan UK
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