Answer:
-At 1000°C, liquid phase at 68 wt% Zn
-At 760°C, liquid+γ phase, liquid at 74 wt% and 66 wt% γ phase
-At 600°C, γ phase
-At 400°C, γ phase
Explanation:
The phase diagram will be used for the combination of the copper-zinc alloy, first 68% by weight of Zn will be located on the axis corresponding to the composition. Draw a vertical line upwards and go through the temperatures given by the exercise 1000, 760, 600 and 400 ° C. Later you have to know the phases for each of the temperatures. Draw a horizontal line within each phase and look at the adjacent phases and the composition of the alloy. For each of the temperatures, the phases are in response and the drawings are attached to the image.
Answer:
a)
b)
Explanation:
From the question we are told that:
Cast-iron block Dimension:
Length
Width
Feed
Depth
Diameter
Number of cutting teeth
Rotation speed
Generally the equation for Approach is mathematically given by
Therefore
Effective length is given as
a)
Generally the equation for Machine Time is mathematically given by
Where
Therefore
b)
Generally the equation for Material Removal Rate. is mathematically given by
Answer:
N = 38546.82 rpm
Explanation:
= 150 mm
= 17671.45
= 250 mm
= 49087.78
The centrifugal force acting on the flywheel is fiven by
F = M ( -
) x
------------(1)
Here F = ( -UTS x + UCS x
)
Since density,
∴ -
= 50 mm
∴ F =
F = 33618968.38 N --------(2)
Now comparing (1) and (2)
∴ ω = 4036.61
We know
∴ N = 38546.82 rpm