Electron beam welding-working chamber, Mechanical Engineering

Assignment Help:

Working Chamber of EBW


The chamber is usually rectangular in shape and has heavy windows to permit viewing the work. Both high voltage machines and low voltage machines are available with work chamber that can be evacuated to high vacuum (or partial vacuum (10-4).

The basic requirements of vacuum is the electrons need to flow in a beam from the emitter to the target unimpeded by the presence of any gas molecules that may cause scattering and slow down of the beam. The source of electrons is a tungsten filament heated to around 2200 °C. At this temperature, the filament will oxidise very quickly because of the presence of oxygen in air. The pumping equipment is usually completely automatic once the set up has been completed.


Related Discussions:- Electron beam welding-working chamber

Thermodynamic Project, ES 347 - Thermodynamics Project Assigned: 3/28/2013...

ES 347 - Thermodynamics Project Assigned: 3/28/2013 Due: 4/25/2013 Problem specification 5 kg of air is contained in a piston-cylinder device, initially at a pressure of 2MPa and a

Heat transfer and temperature distribution, Derive the mathematical express...

Derive the mathematical expression for heat transfer and temperature distribution through infinite long fin?

Manufacturing methods of ceramics, Manufacturing Methods Of Ceramics Th...

Manufacturing Methods Of Ceramics The ceramics manufacturing consists in shaping along with or without pressure and firing to consolidate. The simplest and cheapest process of

SOM, Torsion of shaft

Torsion of shaft

Inlet manifold-basic components of engine , Inlet Manifold: The pipe whic...

Inlet Manifold: The pipe which connects the intake system to the inlet valve of the engine through which air or air-fuel mixture is drawn into the cylinder is called the inlet ma

Difference between components and resolved parts, D i f fe r enc e be...

D i f fe r enc e between components and resolved parts: 1. When the force is resolved into two parts along the two mutually perpendicular directions, the parts along th

Explain the bar and rod drawing - cold drawing processes, Explain the Bar a...

Explain the Bar and Rod Drawing - cold drawing processes In case of bar drawing, hot drawn bars are at first pickled, washed and coated to prevent oxidation. Once it's done

Lubrication complaints by repairing of motorcycle , Lubrication Complaints ...

Lubrication Complaints If the engine oil level is too low, check for the following things: External oil leaks Worn out piston rings Worn out valve guide and/o

Thin cells, what type of stresses a thin cell is subjected to?

what type of stresses a thin cell is subjected to?

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