Numerical - Power required for machining, given efficiency of lathe machine - Manufacturing Processes - 2

Q.  Calculate the power required for machining of a workpiece on lathe having efficiency of 85% on full load, when tangential force required is 1200 N and cutting speed 195 m/min.
- Published on 04 Aug 15

a. 4.59 kW
b. 275.29 W
c. 3.315 kW
d. insufficient data

ANSWER: 4.59 kW

Related Content

 

    Discussion

  • Sandeep Deshmukh   -Posted on 16 Nov 20
    Sir,
    Power required for maching is Fc*V= Power right?
  • ALOKE SHAKHARI   -Posted on 13 Jun 18
    1200*195*100/60/85
  • Pankaj Chaugule   -Posted on 19 Nov 15
    - Given:

    Lathe efficiency (η) = 0.85

    Tangential force (Ft) = 1200N

    Cutting speed (V) = 195 m/min

    = (195 / 60) m/sec

    The power required can be given by,

    Power = (Ft x V) / η …...... W

    = (Ft x V) / (1000 x η) …...... kW

    = (1200 x 195) / (60 x 1000 x 0.85)

    = 4.59 kW

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