Unformatted text preview: It is reduced to a height of 100 mm. Assume the material has a linear strainhardening behavior where Y = 160 MPa and K = 40 MPa. a. What are the peak pressure, average pressure, and forging force at the start of the forging process if i. the coefficient of friction is 0.1 ii. the coefficient of friction is 0.3 iii. there is sticking friction b. What are the peak pressure, average pressure, and forging force at the end of the forging process if i. the coefficient of friction is 0.1 ii. the coefficient of friction is 0.3 iii. there is sticking friction 4. Using my method (not Tlusty’s) calculate the force to simultaneously punch five roundedrectangular holes 3” x 6” with 0.5” radii in 16 gage grade 30 US Steel 1008. (Hint: remember problem 1 of HW #3.)...
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This note was uploaded on 09/06/2011 for the course EML 4321 taught by Professor Staff during the Spring '08 term at University of Florida.
 Spring '08
 Staff
 Strain

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