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# Finding Metal Removal Rate

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In an electrochemical machining operation, the frontal working area of the electrode is 2.5in squared. The applied current=1500amps, and the voltage=12volts. The material being cut is pure aluminum, whose specific removal rate is 1.26 x 10^-4 in^3/amp-min.

If the electrochemical machining process is 90 percent efficent, determine the rate of metal removal in in^3/hr.

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#### Solution Preview

To express the rate of metal removal in terms of (in^3/hr) we calculate

(the rate of metal removal) = (current)*(specific removal rate) * (minutes per hour) *(efficiency)

= ...

#### Solution Summary

In an electrochemical machining operation, the frontal working area of the electrode is 2.5in squared. The applied current=1500amps, and the voltage=12volts. The material being cut is pure aluminum, whose specific removal rate is 1.26 x 10^-4 in^3/amp-min.

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