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!
EQUIPMENT USED IN EBW
The electron beam equipment can be broadly divided in to the following sub systems.Electron Gun and Beam Guidance SystemThe heart of the electron beam welding process is the electron beam gun assembly. Electrons are generated by heating a negatively charged emitting material to its thermionnic emission temperature range thus causing electrons can be attracted to the positively charged anode. The grid cup and the anode are shaped and positioned in such a way as to form the emitted electrons into a beam, which passes through the anode aperture.Recent developments in electron beam welding equipment In early days, the guns used were of the directly heated ribbon type, normally these are relatively low power electron beam guns. With the push to higher beam power levels, the difficulties of generating precision beams, control, stabilisation & reproducibility became more exacting. These are suffer from inconsistency and movement within the grid cup, the power density distribution was distorted by the ellipsoidal emission surface. To improve the performance of an electron beam heating, a little change in these conventional type electron beam guns is made by introducing a cathode which is to be heated by bombardment of electrons emitted from the heated filament. This change would make it more reliable at higher power continues operation for longer time. These type of electron beam guns are indirectly heated (bombarded) cathode type electron beam guns.
Symmetric Central Force A central force is spherically if the magnitude of the force does not depend on the direction (angles θ , or Ø ) of the particle but only on distance
If Engine Keeps on Running after Ignition is Switched Off Causes of Problem Remedy Pre-ignition due to very hot spark plug used
Piston Rings: Piston rings (Figure), fitted into the grooves around the piston, provide a tight sealing effect between the piston and the cylinder wall thus preventing leakage of
Verband der Automobilindustries Flachenschnittstelle (VDAFS) This interface was developed by the Association of the German Automobile Industry for the transfer of 3-D curves an
The cross-section of two angles attached together are shown on the left below. The properties of angles are given in the table with reference to the diagram on the right. The ma
If Low Resistance or Very High Current in Primary Coil Circuit Causes of Problem Remedy Primary ignition coil short circuited
The EV is to be used for city transportation, it should carry a maximum total load of 325 kg (passengers and cargo). The battery back used will be 365 kg, 44 kilowatt hours lithium
Determine Mean coil radius - close coiled helical spring: A close coiled helical spring contains a stiffness of 1 kN/m in compression to a maximum load of 50 N and a maximum
how to find mass of sleeve in porter governor
Cast Iron Electrodes There are three types of electrodes for welding of cast ions. a) Monel-cored electrodes (30 % Ni 70 % Cu) b) Fe-Ni (40 % Ni) c) Ni-electrodes (97 E) These
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: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd