Discussion :: Workshop Technology
- 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 |
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Answer : Option C
Explanation :
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.
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