Engineering, 01.07.2021 16:50, dudedude2201
Chọn dao và xác định chế độ cắt (chiều sâu cắt, lượng tiến dao, tốc độ trục
chính) khi gia công tiện CNC để tiện ngoài phôi bằng gang đúc (cứng), lượng dư
gia công 1.5 + 0.1 x N (mm), (N là số thứ tự của nhóm), độ nhám bề mặt đạt được
sau khi gia công Ra = 2.5 mm, đường kính của phôi là 60 mm
Answers: 3
Engineering, 04.07.2019 18:10, viicborella
Steel is coated with a thin layer of ceramic to protect against corrosion. what do you expect to happen to the coating when the temperature of the steel is increased significantly? explain.
Answers: 1
Engineering, 04.07.2019 18:10, oshawn108
Ahot wire operates at a temperature of 200°c while the air temperature is 20°c. the hot wire element is a tungsten wire of 5 um diameter and 2 mm in length. plot using excel current, heat transfer and heat generated by the wire for air velocity varying from 1-10 m/s in steps of lm/s? matlab the sensor voltage output, resistance, or assume nu 0.989 re033pr13 take air properties at tr (200°c20°c)/2 = 110°c properties of tungsten: c 0.13 kj/kg. k 3 p 19250 kg/m k (thermal conductivity) = 174 w/m. k
Answers: 2
Engineering, 04.07.2019 18:10, nandalabella06
True or false (explain) (110)[111] is a slip system in bcc metals . the {111} family in fcc contains 8 planes. resolved shear stress (rss) in single crystals is just related to the applied stress. critical resolved shear stress (crss) in single crystal metals is direct proportional to the number of defects in the structure
Answers: 2
Engineering, 04.07.2019 18:20, xcapo1x
Refrigerant-134a enters the compressor of a refrigerator as superheated vapor at 0.14 mpa and -10°c at a rate of 0.05 ka/s and leaves at 0.8 mpa and 50°c. the refrigerant is cooied in the condenser to 0.72 mpa and 26'c. it is then throttled to 0.15 mpa. sketch the t-s diagram for the system and evaluate: 6) the rate of heat removai from the refrigerated space (kw), it) the power input to the compressor (kw), ii) the isentropic efficiency of the compressor (%), and iv) the cop of the refrigerator.
Answers: 2
Chọn dao và xác định chế độ cắt (chiều sâu cắt, lượng tiến dao, tốc độ trục
chính) khi gia công tiệ...
Physics, 10.11.2020 22:30
Physics, 10.11.2020 22:30
Physics, 10.11.2020 22:30