Hot, Warm and Cold Working of Metals - Manufacturing Processes - Metallurgical Engineering Previous Year Questions

The thickness of a plate is to be reduced from 60 to 30 mm by multipass rolling. The roll radius is 350 mm and coefficient of friction is 0.15. Assuming equal draft in each pass, the minimum number of passes required would be

A cup is to be made from a 2 mm thick metal sheet by deep-drawing. The height of the cup is 75 mm and the inside diameter is 100 mm. For a drawing ratio of 1.25, the blank diameter in mm is

Match the processes given in Group 1 with the corresponding typical defects given in Group 2.

Match the manufacturing process of Group I to be used for producing the product in Group II.

What is the diameter of the final product?

What is the ideal extrusion pressure if the effective flow stress in compression is 250 MPa?

If a wire of 5 mm diameter is drawn from the above cold rolled rod of 10 mm diameter, the drawing stress, neglecting the effect of friction and redundant work, is approximately

A 480 mm thick slab is hot-rolled using a roll of 720 mm diameter. For a coefficient of friction of 0.5, the maximum possible reduction (in mm) is

Match the defects listed in Group I with the corresponding manufacturing process listed in Group II

Which one of the following metal forming processes is the earing defect associated with?

Railway tracks are typically manufactured using

Schematic diagram shows rolling of a slab. P and Q are points on the surface of the workpiece near entrance and exit, respectively. With reference to the work piece, which one of the following statements is TRUE?