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Mechanical Engineering - Production Engineering

Exercise : Production Engineering - Section 6
11.
As the cutting speed increases, the tool cutting forces
remain constant
increases
decreases
first increases and then decreases
Answer: Option
Explanation:
No answer description is available. Let's discuss.
12.
Crater wear leads to
increase in cutting temperature
weakening of tool
friction and cutting forces
all of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
13.
The addition of lead, sulphur and phosphorus to low carbon steels, help to
reduce built up edge
break up chips
improve machinability
all of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
14.
The relation between the tool life (T) in minutes and cutting speed (V) in m/min is (where n = An exponent, which depends upon the tool and workpiece, and C = A constant)
VnT = C
VTn = C
Vn/T = C
V/Tn = C
Answer: Option
Explanation:
No answer description is available. Let's discuss.
15.
The width of cutting edge of a parting-off tool varies from
3 to 12 mm
5 to 20 mm
8 to 30 mm
15 to 40 mm
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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