subject
Engineering, 24.10.2019 04:00 arianaw6735

Problem 1: a low-carbon steel billet is 75 mm long with diameter = 35 mm. it is direct extruded to a diameter = 20 mm using an extrusion die angle = 75˚. the steel’s strength coefficient = 500 mpa, and its strain hardening exponent = 0.25. in the johnson extrusion strain equation, a = 0.8 and b = 1.4. determine (a) true strain in ideal condition (no redundant work); (b) extrusion strain by johnson equation; and (c) l (remaining billet length) when the metal just reaches the exit of the die; and (d) ram pressure and force at l = 70 and l = 10 mm (hints: there is friction).

ansver
Answers: 3

Another question on Engineering

question
Engineering, 04.07.2019 18:10
An air conditioning system consist of a 5 cm diameter pipe, operating at a pressure of 200 kpa. the air initially enters the pipe at 15°c with a velocity of 20 m/s and relative humidity of 80%. if the heat supply throughout the process is 960 w, determine the relative humidity and the temperature at the outlet
Answers: 3
question
Engineering, 04.07.2019 18:10
Which of the following ziegler nichols tuning methods the response of the controller to a step input should exhibit an s-shaped curve? a)-open loop mode b)-closed loop mode c)-both modes (open & closed) d)-none of the modes (open & closed)
Answers: 3
question
Engineering, 04.07.2019 18:20
Steam enters a converging nozzle at 3.0 mpa and 500°c with a at 1.8 mpa. for a nozzle exit area of 32 cm2, determine the exit velocity, mass flow rate, and exit mach number if the nozzle: negligible velocity, and it exits (a) is isentropic (b) has an efficiency of 94 percent
Answers: 2
question
Engineering, 04.07.2019 18:20
Acertain flow of air (at stp) has a velocity distribution given by v i (in ft/s). if this flow is going through a 4 ft square area in the yz-plane (centered at the origin), what is the mass flow rate (in lbm/s)?
Answers: 2
You know the right answer?
Problem 1: a low-carbon steel billet is 75 mm long with diameter = 35 mm. it is direct extruded to...
Questions
question
Mathematics, 27.01.2021 20:50
question
Mathematics, 27.01.2021 20:50
question
Mathematics, 27.01.2021 20:50
question
Social Studies, 27.01.2021 20:50