Sub Contract Electron Beam Welding

A technique for joining materials in which components to be welded are heated by a concentrated beam of high-velocity electrons in a vacuum.

Electron beam welding is superior quality welding, providing the ability to weld several centimetres in thickness in one operation.

It is precise and controlled, free from impurities because of the high vacuum in which it is performed and it can be used on inaccessible joints. Repair, fabrication and salvage of castings and machined components are its applications.

Electron beam welding is a fusion joining process in which the joint to be welded is bombarded with a finely focused stream of high velocity electrons.

A heated tungsten filament emits electrons that are accelerated by high voltage to a high speed. This stream is focused into a beam with huge intensity compared with arc welding.

Weld joints are aligned optically and passed under the stationary beam position at a predetermined speed.

A machining process that is repeatable, the welding is carried out in a vacuum.

Electron beam welding offers many advantages over conventional welding:

Minimal distortion

Low heat input

Reduced heat affected zone

Oxide free

Excellent homogeneity of weld zone

Suitable for very thin material sections 

Electron beam welding is suitable for joining a large number of metallic media, that conventional welding would be unsuitable for... Vanadium, titanium, aluminium, stainless steel, inconel, kovar, platinum, nickel, tantalum, rhodium, molybdenum and nimonic.

Unlike conventional welding, the two mating surfaces must face square to a good tolerance.

Aerospace electron beam welding

Aerospace electron beam welding is used for

aero engine casings

Air / Oil Seal Assemblies

Nozzle Guide Vanes

Bearing Assemblies

Gear and Shaft assemblies

Aircraft Component Salvage and Repair