Engineering, 06.03.2020 22:38 potatoismeh1
The total solidification times of three casting shapes are to be compared: (a) a sphere with diameter = 10 cm, (2) a cylinder with diameter and length both = 10 cm and (3) a cube with each side = 10 cm. The same casting alloy is used in the three cases. (a) Determine the relative solidification time for each geometry. (b) Based on the results of part (a), which geometric element would make the best riser? (c) If Cm = 3.5 min/cm2 in Chvorinov’s Rule, compute the total solidification time for each casting.
Answers: 3
Engineering, 03.07.2019 14:10, cowgyrlup124
Explain the difference laminar and turbulent flow. explain it with the shear stress and the velocity profiles.
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Engineering, 04.07.2019 18:10, anna22684
Water at 70°f and streams enter the mixing chamber at the same mass flow rate, determine the temperature and the quality of the exiting stream. 0 psia is heated in a chamber by mixing it with saturated water vapor at 20 psia. if both streams enters the mixing chamber at the same mass flow rate, determine the temperature and the quality of the existing system.
Answers: 2
Engineering, 04.07.2019 18:10, 0436500
Aturning operation is performed with following conditions: rake angle of 12°, a feed of 0.35 mm/rev, and a depth of cut of 1.1 mm. the work piece is aluminum alloy 6061 with t6 heat treatment (a16061-t6). the resultant chip thickness was measured to be 1.0 mm. estimate the cutting force, fc. use shear stress of 207 mpa and coefficient of friction on the tool face of 0.6.
Answers: 1
The total solidification times of three casting shapes are to be compared: (a) a sphere with diamete...
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