A straight turning process reduces the diameter of a cylindrical work part from 121 to 107 [mm]. The feed rate is set at 0.15 [mm/rev]. The cutting speed is set at 39 [m/min]. The work part material has a specific cutting energy of 1.5 [W.s/mm3]. Machining power in [KW] is then given by: Question 7Answer1.020.0616.672.051023.75
Question
A straight turning process reduces the diameter of a cylindrical work part from 121 to 107 [mm]. The feed rate is set at 0.15 [mm/rev]. The cutting speed is set at 39 [m/min]. The work part material has a specific cutting energy of 1.5 [W.s/mm3]. Machining power in [KW] is then given by: Question 7Answer1.020.0616.672.051023.75
Solution 1
The question seems to be asking for the machining power in kilowatts (KW) during a straight turning process. However, the question is not fully clear as it ends abruptly.
If we assume that the question is asking for the calculation of the machining power, we can use the formula for machining power:
P = u * f * d * v
where:
- P is the power
- u is the specific cutting energy
- f is the feed rate
- d is the depth of cut
- v is the cutting speed
First, we need to calculate the depth of cut (d), which is half the difference of the initial and final diameters:
d = (121 mm - 107 mm) / 2 = 7 mm
Then, we can substitute the given values into the formula:
P = 1.5 W.s/mm³ * 0.15 mm/rev * 7 mm * 39 m/min
Please note that the units need to be consistent. The cutting speed should be converted from m/min to mm/rev, and the power should be converted from W (watts) to KW (kilowatts).
Without these conversions and the complete question, it's not possible to provide the final answer.
Solution 2
The question seems to be asking for the machining power in kilowatts (KW) during a straight turning process. However, the question is not fully clear as it ends abruptly.
If we assume that the question is asking for the calculation of the machining power, we can use the formula for machining power:
P = u * f * d * v
where:
- P is the power
- u is the specific cutting energy
- f is the feed rate
- d is the depth of cut
- v is the cutting speed
First, we need to calculate the depth of cut, which is half the difference in diameters:
d = (121 mm - 107 mm) / 2 = 7 mm
Then we can substitute the given values into the formula:
P = 1.5 W.s/mm³ * 0.15 mm/rev * 7 mm * 39 m/min
Please note that the units need to be consistent. The cutting speed should be converted from m/min to mm/rev, and the power should be converted from W (watts) to KW (kilowatts).
Without these conversions and the complete question, it's not possible to provide the final answer.
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