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While removing material from iron (atomic weight = 56, valency = 2 and density = 7.8 g/cc by electrochemical machining, a metal removal rate of 2 cc/min is desired. The current (in A) required for achieving this material removal rate is
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- 896.07
- 14.93
- 448.03
- 53764.29
Correct Option: A
| MRR = | ρZF |
Given:
| MRR 2 cc / min = | cc / sec. | 60 |
A = 56,
Z = 2,
F = 96500
ρ = 7.8 g/cc
So,
| = | 60 | 7.8 × 2 × 96500 |
I = 869.07 A.
