Engineering, 13.09.2019 23:30 aariannahnorwoo
Acylindrical rod of copper originally 16.0 mm id diameter is to be cold worked by drawing; the circular cross section will be maintained during deformation. a cold-worked yield strength in excess of 250 mpa and a ductility of at least 12%el are desired. furthermore, the final diameter must be 11.3 mm. using the graphs below, explain how this can be accomplished.
Answers: 2
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Afluid flows with a velocity field given by v=(x/t)i.. determine the local and convective accelerations when x=3 and t=1.
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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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Engineering, 04.07.2019 19:10
Analyze the factors that influence the choice between the following pairs of processes to make the products indicated: i) sand casting versus die casting of an electric-motor housing ii) thread rolling versus machining of a bolt for high-strength application. (co3/c5)
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Engineering, 06.07.2019 03:10
Steel balls 12 mm in diameter are annealed by heating to 1150 k and then slowly cooled to 400 k in an air att 325 k and h -20 w/m2 k. assume the properties of the steel to be k- 40 w/m k,p 7800 kg/m3, and cp 600 j/kg k. a. determine whether lumped system method can be used to analyze this problem and if so why" b. determine the time required for the cooling process. c. determine the total amount of heat lost from each ball to the ambient air
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Acylindrical rod of copper originally 16.0 mm id diameter is to be cold worked by drawing; the circ...
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