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!
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.
A 30m deep quarry pit is to be constructed in a jointed basalt rock mass. The quarry management wants to maximise the side wall inclination to 70° for economic reasons. The geologi
how to find the net profit of given data
A company issues 15-year, $1,000 par-value bonds, with a coupon rate of 5%. The bonds are sold for $619.70. The tax rate is 30%. Compute the cost of debt before taxes and after tax
What is the history of theory of structure?
how to design a circural form tool on drawing sheet?
Inspection Checklist: The following checklist is a starting point and it may be added to if subsequent inspections and debriefs indicate that this would be beneficial. It sh
Actuators The actuator consists of the control surfaces and associated servomechanisms, and is used to change the missile attitude and trajectory or flight path.
Q. Describe two major product applications of powder metallurgy. Ans. Following are some typical applications of powder metallurgy. (i) Refractory metal : P
Assignment: You are interested in proposing a new venture to the management of your company. Pertinent financial information is given below. BALANCE SHEET Cash 2,000,000 Accounts
The ideal test should provide a region of pure, uniform shear stress within the test sample. The most simple test is the tension test on the (+/-45°)ns sample, where n is greater
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