A hot upset-forging operation is performed in an open die on a cylindrical workpiece of 120...

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A hot upset-forging operation is performed in an open die on a cylindrical workpiece of 120 mm diameter and 160 mm height. The part is upset to 40 mm final height at the end of stroke. The coefficient of friction at the die work interface = 0.35. A press with 5 m/sec speed is used to forge this part. The material has a strength coefficient, C = 180 MPa and strain rate sensitivity exponent, m = 0.1 at the hot forging temperature. Determine the maximum force (in MN) in the operation. A hot upset-forging operation is performed in an open die on a cylindrical workpiece of 120 mm diameter and 160 mm height. The part is upset to 40 mm final height at the end of stroke. The coefficient of friction at the die work interface = 0.35. A press with 5 m/sec speed is used to forge this part. The material has a strength coefficient, C = 180 MPa and strain rate sensitivity exponent, m = 0.1 at the hot forging temperature. Determine the maximum force (in MN) in the operation.

Answer rating: 100% (QA)

SOLUTION To determine the maximum force in the hot upsetforging operation we will use the following steps 1 Calculate the area of the workpiece Area 1... View the full answer