What are the advantages of using GP series in speed box design?

A job of 212 mm diameter needs to perform turning operation with a lathe machine. The range of rpm for 12 steps lies between 30 rpm and 380 rpm. Following GP series, an economic cutting speed of v = 20 m/min has to be maintained. Find out five consecutive rpm and job diameter to maintain the economic cutting speed.

Draw the structural diagram for the following structural formula and state which one is better?
i) 2(1) 3(2) 2(6)
ii) 2(6) 3(2) 2(1)

Define machine tools drive system. What are the main characteristics of machine tools drive system?

What are the basic elements of machine tools control system? Explain.

A gears box for a head stock needs to give 16 speeds ranging from 50 rpm to 1600 rpm following a GP series. The power is supplied by an electric motor of 10 kW, using at 1440 rpm through a V-belt drive with a speed reduction of 2:1. Construct a suitable structural diagram after developing the corresponding structural formula. Also, construct a speed chart.

Why are speed and feed rate are regulated?

Show that the maximum loss of economic cutting speed in GP series is constant.

What information do you get from a structural formula? Draw the structural diagram for (i) Z = 2(1) 3(2) 2(6) and (ii) Z = 2(6) 3(1) 2(3). Which one is better and why?

Define kinematic layout and Ray diagram. Draw the structural diagram for (i) z = 2(1) 3(2) 2(6) and (ii) z = 2(3) 3(1) 2(6), which structural formula is comparatively best and why?

What is loss of economical cutting speed? Prove that maximum loss of economical cutting speed is $$\Delta V_{max} = \left( \frac{\Phi - 1}{\Phi + 1} \right) V_{opt}$$

Draw the structural diagram for (i) Z = 2(1) 3(2) 2(6) and (ii) Z = 2(3) 3(1) 2(6), which structural formula is best and why?

Suppose you are assigned to design a gear box for a head stock to give 16 speed ranging from 50 rpm to 1600 rpm. The power is supplied by an electric motor of 10 kW, running at 1440 rpm, through a V-belt drive with a speed reduction of 2:1.

1. If you design the gear box that follows GP series, than what should be the value of $\phi$.
2. Find the 16 rpm values in the output shaft.
3. Construct a suitable structural formula and based on that formula draw structural diagram, ray diagram and speed chart.

Define range ratio ($R_n$). Show that $z = \frac{\log R_n(\phi)}{\log \phi}$

Explain 3-2-1 locating principles with necessary figures.

Explain the following press-work operations: (i) Blanking (ii) Piercing (iii) Notching (iv) Lancing.

Define: Degree of freedom and kinematic chain. Show different types of degree of freedom and kinematic chains with figure.

Draw the structural diagram for the following equation. Find out which is better?

1. 2(1) 3(2) 2(6)
2. 2(6) 3(2) 2(1)

The speed at the first step of spindle is 35 rpm and the speed at the last step is 445 rpm. The maximum number of steps 12 and cutting speed 20 m/min. Layout the speed at AP series.