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Mechanical Engineering - Production Engineering

Exercise : Production Engineering - Section 6
26.
Crater wear is mainly due to the phenomenon known as
adhesion of metals
oxidation of metals
diffusion of metals
all of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
27.
The cutting speed for drilling aluminium, brass and bronze with high speed steel drills varies from
10 to 20 m/min
18 to 30 m/min
24 to 45 m/min
60 to 90 m/min
Answer: Option
Explanation:
No answer description is available. Let's discuss.
28.
Flank wear depends upon the
hardness of the work and tool material at the operating temperature
amount and distribution of hard constituents in the work material
degree of strain hardening in the chip
all of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
29.
The tool may fail due to
cracking at the cutting edge due to thermal stresses
chipping of the cutting edge
plastic deformation of the cutting edge
all of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
30.
The operation of machining several surfaces of a workpiece simultaneously is called
profile milling
gang milling
saw milling
helical milling
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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