A circular hole of 25 mm diameter and depth of 20 mm is machined by the EDM process. The material removal rate inmm3/min is expressed as 4×104IT−1.23 where I = 300 A and the melting point of the material, T = 1600°C. Thetime (in minutes) for machining this hole is____(correct to two decimal places).7.1431

A circular hole of 25 mm diameter and depth of 20 mm is machined by th

1.	A circular hole of 25 mm diameter and depth of 20 mm is machined by the EDM process. The material removal rate inmm3/min is expressed as 4×104IT−1.23 where I = 300 A and the melting point of the material, T = 1600°C. Thetime (in minutes) for machining this hole is____(correct to two decimal places).7.1431
Answer» A circular hole of 25 mm diameter and depth of 20 mm is machined by the EDM process. The material removal rate $i n m m^{3} / m i n$ is expressed as $4 \times 10^{4} I T^{- 1.23}$ where I = 300 A and the melting point of the material, T = 1600°C. The time (in minutes) for machining this hole is____(correct to two decimal places). 7.1431