Homework%20Assigment%202

Homework%20Assigment%202 - 2.- A strip of metal is reduced...

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Homework Assignment 2 ISE 2204 Manufacturing Processes Due Date: February 24, 2009 Please include the Virginia Tech Honor Code pledge in the first page of your assignment and sign it. “I have neither given nor received unauthorized assistance on this assignment.” 1.- (a) Draw a diagram showing the Tresca and von Mises yield criteria for plane stress. Identify the points corresponding to (b) uniaxial tension, (c) uniaxial compression, (d) plane-strain compression, and (e) balanced biaxial tension.
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Unformatted text preview: 2.- A strip of metal is reduced in thickness by cold working from 25 mm to 15 mm. A similar strip is reduced from 25 mm to 10 mm. Which one of these strips will recrystallize at a lower temperature? Why? 3.- Calculate the ratio of Ra/Rq for a square wave. 4.- Calculate the theoretical tensile strength for aluminum, plain-carbon steel and tungsten. Estimate the ratios of their theoretical strength to actual strength....
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