A cold heading operation is performed to produce the

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Unformatted text preview: heading operation is performed to produce the head on a steel nail. The strength coefficient for this steel is 600 MPa, and the strain hardening exponent is 0.22. Coefficient of friction at the die-work interface is 0.14. The wire stock out of which the nail is made is 5.00 mm in diameter. The head is to have a diameter of 9.5 mm and a thickness of 1.6 mm. The final length of the nail is 120 mm. (a) Calculate the length of stock that projecting out of the die. (b) Compute the required force. p2/2 Full name:________________________________ Section: L 5 _ _ (-5 pt for wrong info) HW9, ET181, Fall 13. Due by 6 pm on Wed, Nov 6. Use both sides of a sheet. The Grader is not responsible for missing paper; please staple your sheets. A. Multiple choice questions Question Answer 1 b 2 a 3 c 4 c 5 c B1) Question 6 7 8 9 10 Answer a c a b d B2) p1/2 Full name:________________________________ Section: L 5 _ _ (-5 pt for wrong info) B3) p2/2...
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This note was uploaded on 01/26/2014 for the course ENTC 181 taught by Professor Hung during the Fall '08 term at Texas A&M.

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