5) Chapter 18: (USCS units) Aluminium rod stick with a starting diameter = 0.50 in %3D is drawn through a draw die with an entrance angle = 13°. The final diameter of the rod is = 0.375 in. The metal has a strength coefficient = 25,000 lb/in?. and a strain-hardening exponent = 0.20. Coefficient of friction at the work-die interface = 0.1. Determine the (a) area reduction, (b) draw force for the operation, and (c) horsepower o perform the operation if the exit velocity of the stock = 5 ft/sec.

5) Chapter 18: (USCS units) Aluminium rod stick with a starting diameter = 0.50 in %3D is drawn through a draw die with an entrance angle = 13°. The final diameter of the rod is = 0.375 in. The metal has a strength coefficient = 25,000 lb/in?. and a strain-hardening exponent = 0.20. Coefficient of friction at the work-die interface = 0.1. Determine the (a) area reduction, (b) draw force for the operation, and (c) horsepower o perform the operation if the exit velocity of the stock = 5 ft/sec.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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A cylindrical billet that is 100 mm long and 50 mm in diameter is reduced by indirect (backward) extrusion to a 20 mm diameter. The die angle is 90°. In the Johnson equation, a = 0.8 and b = 1.4. In the flow curve for the work metal, the strength coefficient = 800 MPa and strain hardening exponent = 0.13. Determine (a) extrusion ratio, (b) true strain (homogeneous deformation), (c) extrusion strain, (d) ram pressure, and (e) ram force
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