Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
ELECTRON BEAM WELDING
In this process fusion is achieved by focusing a high power density beam of electrons on the area to be joined. Upon striking the metal, the kinetic energy of the high velocity electrons changes to thermal energy causing the metal to melt and the beam passes through the thickness of the plate thus making a keyhole. As the beam is moved, the keyhole also is moved leaving behind the molten metal to solidify. The electrons are emitted from a tungsten filament heated to approximately 3000 °C. The electron gun, the job and the fixtures are kept in a vacuum chamber. Very high welding speeds, high purity of welds and a very good control of weld parameters are possible to obtain by using this process. EB welding is highly suitable for welding of refractory metals such as tungsten, molybdenum, columbium tantalum and metals, which oxidise readily such as titanium, beryllium and zirconium. It can also be used to join aluminium, Steel and ceramics. EB machine is highly expensive but its use is justified for critical applications such as nuclear and aerospace components fabrication.
Operation and maintenance of airport facilities: The operation and maintenance of airport facilities is very important for ensuring safety, convenience and economy. Air Traffi
A cycle stream power plant is to be designed for stream temperature and turbine 350
Determine the axial extension along a load: An open coiled helical spring is created having 10 turns of a mean radius of 60 mm. The wire diameter is 10 mm and coils make an an
discuss the main components of computer aided manufacturing
Show that heat is a path path function and not a property of system
(a) Describe clearly the constructional details and operation of various rear axle drives with the engine placed at the front. Illustrate your answer with simple and neat sketch.
define thormodynamics and its laws
Cobalt-base super alloys (e.g. UNS R30155 (Grade 661) and R30816 (Grade 671)) have superior strength to the nickel base alloys above 1800°F (980°C). The refractory metal alloys
how to reduce energy consumption in hvac
Draw and also explain the stress strain diagram for the following materials a) Copper b) Ductile Materials c) Rubbers and Elastomers and d) Brittle materials.
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd