Production Engi...

In punching and blanking operations the shear is provided respectively on :

What will be the diameter of a cup drawn using deep drawing method from a blank of 70 mm diameter using two draws? Take first reduction ratio as 40 % and second 30 %.

For a blanking operation, circular disk of 60 mm are produced. The radial clearance is 0.2 mm and die allowance is 0.08 mm. The punch size will be (in mm) _________

In blanking operation to produce steel washer the maximum punch load used is 2 × 10⁵ N. The plate thickness is 4 mm and percentage penetration is 25. The work done during this shearing operation is

A metal sheet of thickness 4 mm is pierced to create a hole of 40 mm. The shear strength of sheet is 450 MPa. Calculate the diametrical clearance (c) and punch force (f).

A cup is to be produced using deep drawing method of diameter 40 mm and height (h) from a blank of diameter 100 mm and thickness 0.6 mm. Assume reduction ratio of 35 %, the height of cup (h) and diameter of cup (d₂) after two reductions are

A hole of 60 mm diameter is to be punched in a metal sheet of thickness 5 mm and ultimate strength of 450 N/mm². If the penetration is 30 % of thickness, then

During deep drawing a steel shell of inside diameter of 85.2 mm and is made from 2.4 mm thickness sheet having 2300 kg/cm² yield strength. If blank diameter is 136 mm, then Die opening size (mm) and drawing force (tonnes) are respectively ________. [Take C = 0.6 for ductile material]

A blank of 75 mm diameter is to be cut out from sheet of mild-steel. The thickness of sheet is 3.2 mm and the radial clearance required is 5% of the thickness of sheet. The diameter of