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
Correct Answer :
B. VTn = C
Related Questions
In a particular type of welding, flux is prepared in the form of a coarse powder and granulated flux is spread over the joint. What is this type of welding process called?
Electric arc welding
Submerged arc welding
MIG welding
TIG welding
Friction at the tool-chip interface can be reduced by
Decreasing the rake angle
Increasing the depth of cut
Decreasing the cutting speed
Increasing the cutting speed
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Lower chip-tool contact area and smaller shear angle
Higher chip-tool contact area and larger shear angle
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Soft and ductile materials
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Soft and brittle materials
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Two point cutting tool
Three point cutting tool
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Ultrasonic welding
Forge welding
Electron beam welding
Friction welding
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Flank and a plane at right angles to the drill axis
Chisel edge and the lip as viewed from the end of a drill
None of the above
In gear hobbing
Only hob rotates
Only gear blank rotates
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Neither hob nor gear blank rotates
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|---|---|
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| Q. Muller | 2. Core making |
| R. Dielectric Baker | 3. Die casting |
| S. Sand Blaster | 4. Annealing |
| . | 5. Sand mixing |
P-2, Q-1, R-4, S-5
P-4, Q-2, R-3, S-5
P-4, Q-5, R-1, S-2
P-3, Q-5, R-2, S-1
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Incomplete penetration
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Slag Entrapment (Inclusions)
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Grinding at high speed results in the reduction of chip thickness and cutting forces per grit.
Aluminium oxide wheels are employed.
The grinding wheel has to be of open structure.
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Two
Four
Five
Seven
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9° to 15°
16° to 20°
21° to 25°
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Tough material
Hard material
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1000 to 1500
1500 to 2000
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40° to 60°
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Deteriorates
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Torch brazing
Dip brazing
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Geometrical progression
Harmonical progression
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10 microns
20 microns
30 microns
60 microns
Which of the following statement is correct about EDM machining?
It can machine hardest materials.
It produces high degree of surface finish.
The tool and work are never in contact with each other.
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