In a drilling operation the following data are given Specifi

In a drilling operation, the following data are given: Specific cutting energy of the workpiece material 2.3 J/mm^3 Rotational frequency of the drill 400 rpm Feed per revolution 0.2 mm. Drill diameter and point angle: 14 mm and 118 degree respectively. The un-deformed cross sectional area of chip in mm^3. The torque, in Nm, applying on the drill spindle during this operation.

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