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

Clipper and clamper, i want 5 question for clipper and clamper along with t...

i want 5 question for clipper and clamper along with their solution

Engineering economic analysis definition, Introduction Engineering Econ...

Introduction Engineering Economic Analysis Definition: using a combination of quantitative and qualitative techniques to analyze economic differences among engineering design a

Pov display, require help in making pov display

require help in making pov display

Applications of De, What are the applications of de.moivres theorem in soft...

What are the applications of de.moivres theorem in software engineering,computer science,programming and computer engineering? if there are any applications,then,what are that?

Automatic synchronising - propellers, AUTOMATIC SYNCHRONISING: Automa...

AUTOMATIC SYNCHRONISING: Automatic Synchronisation uses engine driven synchronising alternators to detect electrically any increase or decrease in a slave engine's speed.  Ea

Oscilloscope, connecting probe in CRO causes

connecting probe in CRO causes

Blanking, Blanking involves cutting of the sheet metal along a closed outl...

Blanking involves cutting of the sheet metal along a closed outline in a single step to separate the piece from the surrounding stock. As shown in figure, the path that is cut out

Means of escape, Means of escape: The means of escape can start at any...

Means of escape: The means of escape can start at any point inside a building where there may be people.      The means of escape end when 'ultimate safety' is attained out

Architectural graphics, How to draw schiography in a perspective view of an...

How to draw schiography in a perspective view of an object

Vehicle kinematics, x(t)=integration((Vx(t)+Vy(t))/2*cos(theta)dt) where Vx...

x(t)=integration((Vx(t)+Vy(t))/2*cos(theta)dt) where Vx, Vy and theta is a function of t I am getting problem with how to write it down in matlab in order to get the position x.

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