In order to prevent the tool from rubbing the work __________ on tools are provided.

The angle between the shear plane and __________ is called the shear angle.

The angle on which the strength of the tool depends is

Carbides are used in_____

Positive rake angle is given for machining of:

For machining of carbide material which of the following tool will be preferred?

Metal resistance to shear during chip formation is known as

Thermal cracking of tools occurs at

Cutting forces can be measured using a

The tool life is said to be over if

metal machining, the zone where the heat is generated due to friction between the moving chip and the tool face is called

The relation between the tool life(T) in minutes and cutting speed (V) in m/min is

Using the Taylor Equation for tool life and letting n = 0.5 and C = 120, calculate the percentage increase in tool life when the cutting speed is reduced by 50%.

The cutting velocity in m/sec, for turning a work piece of diameter 100 mm at the spindle speed of 480 rpm is

Using the Taylor equation VT^n=c, calculate the percentage increase in tool life when the cutting speed is reduced is reduced by 50% (n=0.5 and c=400)

In an orthogonal machining operation :

Uncut thickness = 0.5 mm

Cutting speed = 20 m/min

Rake angle = 15 deg

Width of cut = 5 mm Chip thickness = 0.7 mm

Thrust force = 200 N Cutting force = 1200 N

The values of shear angle and shear strain, respectively, are

In metal cutting operation, maximum heat (i.e. 80-85%) is generated in

Why metal removal process is costly?

In oblique cutting of the metals, the cutting edge of the tool is