A billet 75mm long and 25mm in diameter is to be extruded in a direct extrusion operation with extrusion ratio re= 4.0 .The extrudate has a round cross section, the die angle (half angle )is 90 degree .The work metal has a strength coefficient of 415 Mpa, and strain hardening exponent of 0.18. Use the Johnson formular with a= 0.8 and b=1.5 to estimate extrusion strain. Find the Pressuer applied to the end of the billet as the ram moves forward.
A billet 75mm long and 25mm in diameter is to be extruded in a direct extrusion operation with extrusion ratio re= 4.0 .The extrudate has a round cross section, the die angle (half angle )is 90 degree .The work metal has a strength coefficient of 415 Mpa, and strain hardening exponent of 0.18. Use the Johnson formular with a= 0.8 and b=1.5 to estimate extrusion strain. Find the Pressuer applied to the end of the billet as the ram moves forward.
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 billet 75mm long and 25mm in diameter is to be extruded in a direct extrusion operation with extrusion ratio re= 4.0 .The extrudate has a round cross section, the die angle (half angle )is 90 degree .The work metal has a strength coefficient of 415 Mpa, and strain hardening exponent of 0.18.
Use the Johnson formular with a= 0.8 and b=1.5 to estimate extrusion strain. Find the Pressuer applied to the end of the billet as the ram moves forward.
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