Engineering, 21.08.2020 03:01 asjessehills2000
B1) 20 pts. The thickness of each of the two sheets to be resistance spot welded is 3.5 mm. It is desired to form a weld nugget that is 5.5 mm in diameter and 5.0 mm thick after 0.3 sec welding time. The unit melting energy for a certain sheet metal is 9.5 J/mm3 . The electrical resistance between the surfaces is 140 micro ohms, and only one third of the electrical energy generated will be used to form the weld nugget (the rest being dissipated), determine the minimum current level required.
Answers: 3
Engineering, 03.07.2019 14:10
The y form of iron is known as: a) ferrite b) cementite c) perlite d) austenite
Answers: 3
Engineering, 04.07.2019 12:10
On a average work day more than work place firs are reorted
Answers: 1
Engineering, 04.07.2019 18:10
The mass flow rate of the fluid remains constant in all steady flow process. a)- true b)- false
Answers: 1
Engineering, 04.07.2019 18:10
Aloaded platform of total mass 500 kg is supported by a dashpot and by a set of springs of effective stiffness 72 kn/m. it is observed that when the platform is depressed through a distance x = 12.5 cm below its equilibrium position and then released without any initial velocity; it reaches its equilibrium position in the shortest possible time without overshoot. find the position and velocity of the loaded platform 0.10 sec. after its release. if a further load of 400 kg is added to the platform, find, i) the frequency of damped vibrations, and i) the amplitude of vibration after 2 complete oscillations, given that the initial amplitude is 15 cm.
Answers: 1
B1) 20 pts. The thickness of each of the two sheets to be resistance spot welded is 3.5 mm. It is de...
Mathematics, 10.11.2020 23:10
History, 10.11.2020 23:10
Mathematics, 10.11.2020 23:10
Mathematics, 10.11.2020 23:10
Geography, 10.11.2020 23:10
Mathematics, 10.11.2020 23:10
Social Studies, 10.11.2020 23:10
Health, 10.11.2020 23:10
Mathematics, 10.11.2020 23:10
Mathematics, 10.11.2020 23:10
Biology, 10.11.2020 23:10