Engineering, 26.07.2019 20:10 naomicervero
(a) briefly describe, aided with schematic drawings, the operation principles of the two 6. powder bed (selective laser melting and selective electron beam melting) metallic additive manufacturing systems. (b) for the two powder bed additive manufacturing processes, describe the differences in powder size and chamber gas that are used and explain why there are differences. (c) explain why planer growth (layer), which is normally observed in welding, is not observed in selective laser melting of metallic alloys that are commonly used.
Answers: 2
Another question on Engineering
Engineering, 04.07.2019 18:20
Select any two (2) areas of applications of chain-drive. (clo4) a)-permanent lubrication necessary b)-hydraulic forklift truck operation c)-rigging and heavy moving materials d)-relatively high maintenance costs e)-costlier than belt drives
Answers: 2
Engineering, 04.07.2019 18:20
Athin walled concentric tube exchanger is used to cool engine oil from 160°c to 60°c with water that is available at 25°c acting as a coolant. the oil and water flow rates are each at 2 kg/s, and the diameter of the inner tube is 0.5 m and the corresponding value of the overall heat transfer coefficient is 250 w/m2. oc. how long must the heat exchanger be to accomplish the desired cooling? cpwater=4.187 kj/kg-candcpengine el=2.035 kj/kg·°c, oil . 120]
Answers: 1
Engineering, 04.07.2019 18:20
Avolume of 2.65 m3 of air in a rigid, insulated container fitted with a paddle wheel is initially at 264 k, 5.6 bar. the air receives 432 kj by work from the paddle wheel. assuming the ideal gas model with cv = 0.71 kj/kg • k, determine for the air the amount of entropy produced, in kj/k
Answers: 2
Engineering, 04.07.2019 18:20
Find the minimum film thickness for a journal bearing with the data below. shaft diameter, d-50 mm, clearance ratio, cdratio? 0.001, shaft speed, n 2000 rpm; bearing length. i 200 mm; eccentricity ration, ? -0.55. ( note, cdratio-ca/d) the minimum film thickness is um
Answers: 2
You know the right answer?
(a) briefly describe, aided with schematic drawings, the operation principles of the two 6. powder b...
Questions
Mathematics, 12.04.2020 18:49
Mathematics, 12.04.2020 18:49
Physics, 12.04.2020 18:49
Geography, 12.04.2020 18:49
Mathematics, 12.04.2020 18:49
Mathematics, 12.04.2020 18:49
Social Studies, 12.04.2020 18:49
Mathematics, 12.04.2020 18:49
History, 12.04.2020 18:49
History, 12.04.2020 18:49
