During the electrochemical machining (ECM) of iron (atomic

During the electrochemical machining (ECM) of iron (atomic weight = 56, valency = 2) at current of 1000 A with 90% current efficiency, the material removal rate was observed to be 0.26 cc/s. If Titanium (atomic weight = 48, valency = 3) is machined by the ECM process at the current of 2000 A with 90% current efficiency, the expected material removal rate in gm/s will be

MRR =	AI
	ρZF

0.26 =	56 × 1000 × 0.9
	ρ × 2 × 96500

ρ = 0.9956.

Now, Expected MRR =	48 × 2000 × 0.9
	0.9956 × 3 × 96500

= 0.30 gm/s