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18.21 (SI units) **Do not use commas in your answer.** A cylindrical billet is 200 mm long and 100 mm in diameter. It is reduced by indirect extrusion to a 30 mm diameter. Die angle = 90°. In the Johnson equation, a = 0.8 and b = 1.5. In the flow curve for the work metal, strength coefficient = 250 MPa and strain hardening exponent = 0.15. Determine (a) extrusion ratio, (b) true strain (homogeneous deformation), (c) extrusion strain, (d) ram pressure, MPa and (e) ram force. N

18.21 (SI units) **Do not use commas in your answer.** A cylindrical billet is 200 mm long and 100 mm in diameter. It is reduced by indirect extrusion to a 30 mm diameter. Die angle = 90°. In the Johnson equation, a = 0.8 and b = 1.5. In the flow curve for the work metal, strength coefficient = 250 MPa and strain hardening exponent = 0.15. Determine (a) extrusion ratio, (b) true strain (homogeneous deformation), (c) extrusion strain, (d) ram pressure, MPa and (e) ram force. N

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
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18.21 (SI units) **Do not use commas in your answer.** A cylindrical billet is 200 mm long and 100 mm in diameter. It is reduced by indirect extrusion to a 30 mm diameter. Die angle = 90°. In the Johnson equation, a = 0.8 and b = 1.5. In the flow curve for the work metal, strength coefficient = 250 MPa and strain hardening exponent = 0.15. Determine (a) extrusion ratio, (b) true strain (homogeneous deformation), (c) extrusion strain, (d) ram pressure, MPa and (e) ram force.
Transcribed Image Text:18.21 (SI units) **Do not use commas in your answer.** A cylindrical billet is 200 mm long and 100 mm in diameter. It is reduced by indirect extrusion to a 30 mm diameter. Die angle = 90°. In the Johnson equation, a = 0.8 and b = 1.5. In the flow curve for the work metal, strength coefficient = 250 MPa and strain hardening exponent = 0.15. Determine (a) extrusion ratio, (b) true strain (homogeneous deformation), (c) extrusion strain, (d) ram pressure, MPa and (e) ram force.
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