The Electrochemical Machining (ECM) is widely used in machining variety of components used in aerospace, automotive, defense & medical applications. Due to low machining accuracy ECM is yet to be a best alternative process. This paper presents experimental investigation of PECM parameters such as voltage, feed rate, and pulse on time, duty cycle on MRR. Keeping pressure constant, Taguchi‟s orthogonal array L9 has been effectively used to study the effect of independent process parameters. The results show PECM has enhanced MRR. The experimental results were analyzed using analysis of variance (ANOVA) method and by plotting various graphs.
This paper presents the concept and prototype of a computer aided engineering (CAE) system that can be used to solve different task of electrochemical machining (ECM), such as: tool-electrode design, selection of optimal machining variant and input machining parameters optimization. The system uses computer simulation software that was developed for various kinds of ECM operations like: electrochemical (EC) sinking, EC milling, EC smoothing, ECM-CNC with a universal electrode and numerically controlled electrode movement, etc. The results of computer simulation of different ECM processes and results of experimental verifications are also presented in the paper.
Perfect Quantum Cloning Machines (QCM) would allow to use quantum nonlocality for arbitrary fast signaling. However perfect QCM cannot exist. We derive a bound on the fidelity of QCM compatible with the no-signaling constraint. This bound equals the fidelity of the Bu\v{z}ek-Hillery QCM.