engineering recuitment UPCL AE (E&M) 2021 Mock Test Production Engineering (Manufacturing) Metal Forming Sheet Metal Operation
It is required to punch a hole of diameter 10 mm on a steel of thickness 3 mm. The shear strength of the wok material is 520 MPa. The required punch force is
1
19.78 kN
2
49 kN
3
98.9 kN
4
395.6 kN