7. It is required to finish-turn the diameter of a glass-fiber-reinforced axle from 77.0 to 75.0mm...

Transcribed Image Text:

7. It is required to finish-turn the diameter of a glass-fiber-reinforced axle from 77.0 to 75.0mm at a length of 50.0 mm on each end of the axle. The axle is 1,000.0 mm long. The axle is turned at 800 rpm, the feed is 0.1 mm/rev and the depth of cut is 1.0 mm. Determine the material removal rate, cutting power, and the cutting time required for finish-turning one axle. Use a specific cutting energy for glass FRPs of approximately 500N/m. $77 $75 50 50 8. In a drilling operation using a twist drill, the rotational frequency of a drill is 5s1, the feed 0.25 mm, the major cutting-edge angle 60, and the drill diam- eter 12 mm. Assuming that the specific cutting energy of the work material is 0.75 GJ/m, calculate: (a) The maximum material removal rate (b) The undeformed chip thickness (c) The drill torque, in Newton-meter 7. It is required to finish-turn the diameter of a glass-fiber-reinforced axle from 77.0 to 75.0mm at a length of 50.0 mm on each end of the axle. The axle is 1,000.0 mm long. The axle is turned at 800 rpm, the feed is 0.1 mm/rev and the depth of cut is 1.0 mm. Determine the material removal rate, cutting power, and the cutting time required for finish-turning one axle. Use a specific cutting energy for glass FRPs of approximately 500N/m. $77 $75 50 50 8. In a drilling operation using a twist drill, the rotational frequency of a drill is 5s1, the feed 0.25 mm, the major cutting-edge angle 60, and the drill diam- eter 12 mm. Assuming that the specific cutting energy of the work material is 0.75 GJ/m, calculate: (a) The maximum material removal rate (b) The undeformed chip thickness (c) The drill torque, in Newton-meter