During drawing operation, the states of stress in cup would include
A
Compressive stress in the flange
B
Tensile stress in the wall
C
Both (A) and (B)
D
None of these
Correct Answer: Both (A) and (B)
The stress in the flange region during the deep drawing process is a combination of radial tensile drawing stress and a tangential compressive stress.The blank-holder at the top of the workpiece exerts a compressive force at the upper surface of the blank during the drawing process.