Difference between Laser and electron beam welding

By : Basel Raafat Radwan Saleh Selim

3rd year

Production and mechanical design department

Supervisor : Dr. Hassan Abdelhafez

References:

ebeinc.com , accutektesting.com

Laser WeldingElectron Beam

Welding

High speedHigh speed1-High welding speed

Lack penetrationDeep penetration2-Penetration

Needs the shielding gas normally nitrogen or

argon to stop oxidisation of the weld area and weld

pool

Not required3-Filler gas or shielding gas

Performed in air or shielding gas

Performed in a high vacuum environment,

which is particularly suited to titanium

4-Surrounding environment

7:10%80:90%5-Power efficiency

Consumption of shield gas high Electricity

Requires high purity water in cooling system to cool

beam source

Cooling waterElectricity

6-Running cost

CleanClean7-Welds

High control of the parameters

High control of the parameters

8-controllable

NarrowNarrower9-Weld zoneCan weld any size of work

piecesSize of work pieces is

controlled by the volume of the vacuum chamber

10-Size of work pieces

Low costHigh cost11-CostSmall HAZSmaller HAZ12-HAZ

No X-rays generatedX-rays is generated 13-Generation of X-rays