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4500_HW4

# 4500_HW4 - Manufacturing Methods MAE 4500 Fall 2006 1...

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Manufacturing Methods MAE 4500 Fall, 2006      Homework #4                                                                                                                                                                                                       1. A 1015 steel disc of 8.0 in. diameter and 1.0 in. in height is forged cold in a press of  v=300 ipm.  No lubricant is used.  Calculate:  (a) the  starting  workpiece  length,  if  bar  diameter is 5.0 in., (b) the flow stress at the end of the stroke, (c) the average  die pressure, (d) the forging force.  (e) What decrease in die pressure and forging  force would occur if mineral oil.is used as a lubricant? 2. A 2017 aluminum alloy slab of 300 mm thickness and 1000 mm width is hot rolled  at 500  o

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4500_HW4 - Manufacturing Methods MAE 4500 Fall 2006 1...

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