Engineering, 03.12.2019 17:31 ketnerfaith17
(s)(si units) a hot upset-forging operation is performed in an open die. initial diameter of the cylindrical work part = 30 mm, and its height = 50 mm. the part is upset to an average diameter = 45 mm. the work metal at this elevated temperature yields at 90 mpa. coefficient of friction at the diework interface = 0.40. determine (a) the final height of the part and (b) the maximum force in the operation.
Answers: 2
Engineering, 04.07.2019 18:10
Determine whether or not it is possible to compress air adiabatically from k to 140 kpa and 400 k. what is the entropy change during this process?
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Engineering, 04.07.2019 18:20
Apiston-cylinder device contains 0.1 m3 of liquid water and 0.9 m3 of water vapor in equilibrium at 800 kpa. heat is transferred at constant pressure until the temperature of water reaches 350 °c. determine (a) the quality of water at the initial state (b) the work associated with this process, (c) the heat associated with this process.
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Engineering, 04.07.2019 18:20
Wiy doeres rere okhn a pump whon working betwon the same pressure range?
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Engineering, 04.07.2019 19:10
The sum of the normal stresses does not change as the stress state rotates through an angle. a)-trune b)- false
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(s)(si units) a hot upset-forging operation is performed in an open die. initial diameter of the cyl...
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