A flat metal sheet is bent into v shape using appropriate punch and die, both having included angle of 45 degree
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A sheet is bent into v shape using appropriate punch and die, both having included angles of 45 degrees.
After this process it is found that the included angle of sheet is greater than 45 degrees.
This phenomenon is known as :0is greater than 45 degrees vvv die of 6=45 , after that process
A-positive spring back
B-negative spring back
C-plasticity
D-insufficient data
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6
Answer:
A-positive spring back
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