Engineering, 15.10.2020 08:01 elijahjacksonrp6z2o7
Aluminum is being cast into a cylindrical mold which is 3 cm high and has a diameter of 1.5 cm. The cylinder is upright in the mold. The mold is bottom gated. There is a vent on the top of this part which extends to the top of the mold, but is so thin that no liquid metal can enter it. You wish to fill the part with no aspiration. The pouring basin is 2 cm tall and is completely filled during pouring. The height from the top of the pouring basin to the bottom of the part is 8 cm. The sprue is conical; the grate and runner are cylindrica. Assuming the bottom of the sprue and the gate have the same diameter, determine:
a. diameter of the gate
b. diameter of the top of the sprue
c. the filling time of the mold.
Answers: 1
Engineering, 03.07.2019 23:20
Two technicians are discussing the intake air temperature (iat) sensor. technician a says that the computer uses the iat sensor as a backup to the engine coolant temperature (ect) sensor. technician b says that the powertrain control module (pcm) will subtract the calculated amount of fuel if the air measures hot. who is correct
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Engineering, 04.07.2019 18:10
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.
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Engineering, 04.07.2019 19:20
Asimple speed reducer is composed of 2 spur gears. the pinion gear has a pitch diameter of 0.75" and 36 teeth while the driven gear has a pitch diameter of 4.0" and 192 teeth. a)-what is the diametral pitch of each gear? b)-if an electric motor rotating ccw at 3000 rpm is coupled to the pinion, what is the rotational speed of the driven gear? c)-if the torque delivered to the pinion is 1 n-m, what is the torque on the driven gear? d)-what is the power transmitted by the gear train?
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Engineering, 06.07.2019 02:30
A12 mm diameter shaft runs in a plain cylindrical bush 30 mm long that is located in an 18 mm diameter hole in a housing. the shaft-inner bush fit is h8 f and the outer bush-housing fit is h7-p6. make a fully cimensioned sketch of the bush with tolerances. find the maximum and minimum clearance or interference for both fits on the inner and outer diameters of the bush
Answers: 3
Aluminum is being cast into a cylindrical mold which is 3 cm high and has a diameter of 1.5 cm. The...
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