Production Engi...

In an extrusion process the extrusion ratio was found to be 25. Calculate the final diameter (in cm) of a circular cross section, if its initial area was 300 cm². (Correct upto two decimal places).

What is the true strain induced if in an extrusion process if a billet of diameter 26.2 mm and length 220 m is extruded to a length of 280 m?

If the friction coefficient is increased by 60 % in a rolling operation, then the maximum possible reduction per pass increases by _______%

A wire of 18 mm diameter is drawn with the degree of drawing equal to 0.36. Find the percentage reduction in diameter _______?

Match the deformation processes in Column I with the corresponding stress states listed in Column II:

A rod of diameter 20 mm is reduced by drawing to a rod of diameter 14 mm in a single pass at a speed of 110 m/min. If semi-die angle is 2.5° and coefficient of friction between die and rod is 0.2, then which of the following are true? (Stress of work material = 310 MPa)

A cylindrical cup of diameter 120 mm and 180 mm depth is to be drawn from a sheet 2 mm thickness. If the corner radius is 8 mm and the draw reduction ratio is 40 % for 1^st draw and 20 % for subsequent draws, then number of draws required is

In a single pass rolling operation a sheet of dimensions 120 mm × 20 mm is reduced to 14 mm thickness. Rolls are of diameter 300 mm and rotate at 180 rpm. If the sheet thickness at the neutral plane is 16 mm, calculate the sum of forward and backward slip in % respectively.

A solid cylindrical part made of 304 stainless steel is 150 mm in diameter and 100 mm high. It is reduced in height by 50%. Process used is open die forging with flat dies. Assuming coefficient of friction is 0.2. The forging force (in MN) at the end of stroke will be: