Electron beam welding, Other Engineering

Assignment Help:

The experimental set-up of Electron-beam welding.

In the electron-beam process, electrons are emitted from the heated filament called the cathode and then focused into a beam which is directed at the welding point. This electron beam is accelerated by a high difference of potential voltage between the work-piece and the cathode filament. The cathode within the electron-beam gun releases the electrons, which travel through a series of focusing lenses, causing the electrons to converge on one another to form the beam. The electrons are not free flowing but are instead greatly accelerated by the tremendous difference of potential voltage between the cathode and anode. The speed of these accelerated particles range from 30,000 to 1,20,000 miles/sec, depending upon the voltage of the unit.

          When the beam strikes the welding point, the kinetic energy of the high-speed electrons is converted into heat. The heat is great enough to melt and fuse the metal. The greater the kinetic energy, the greater the amount of heat released and by this energy the welding process is completed.

Ans.(b) The soldering is a method of joining similar or dissimilar metals by means of a filler metal (called solder) which melts at a relatively low temperature i.e. less than 427ºC. Although soldering is done below 427ºC generally the solde3rs used have a melting point between 180ºC to 270ºC.


Related Discussions:- Electron beam welding

Strength of materials, Applications of the subject strength of materials

Applications of the subject strength of materials

Providing fire resistant - fire safety management, Providing fire resistant...

Providing fire resistant: If the building does not provide everyone with alternative exit routes then it may be acceptable for people to pass the fire if they are separated f

Health care finance basic tool for nonfinancial managers, based on your man...

based on your managemet style or your personal perspective, discuss how you developed your viewpoint how it will influence the way you manage, and what challenges you migt face if

Electronics devices and circuits, With the help of circuit diagram and the ...

With the help of circuit diagram and the waveforms,explain the working of a negative clipper with positive biasing voltage.also explain the Same concept in series clipper circuit

Aerospace Engineering, Define the aircraft axes & degrees of freedom. Analy...

Define the aircraft axes & degrees of freedom. Analyse the different maneuvers that can be done by an aircraft.

Post graduation, i am doing be in mechanical engg in india. so can i do my ...

i am doing be in mechanical engg in india. so can i do my masters in geoophysic ?

Small business management, how to calculate the ratio and break-even point ...

how to calculate the ratio and break-even point in one report

CHEMICAL ENGINEERING REACTIONS ASSIGNMENT, HI,I GOT ASSIGNMENTS TO TURN IN ...

HI,I GOT ASSIGNMENTS TO TURN IN WITHIN 24 HOURS.PLEASE IS THERE ANYWAY YOU COULD HELP OUT?

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

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!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd