Beam welding

Electron beam welding (EBW) and LASER beam welding (LBW) are the two processes required for unique applications where single pass welding on variety of metals and alloys mainly required for defence , nuclear and aerospace applications need to be done with very high reliability.

Electron beam welding

Accelerated electrons are converged and focussed at the metals to be welded to get very high energy density.Beam size is of the order of 0.5 mm.Acceleration voltages will be several kilo volts and beam current in milliamperes.Welding speeds will be in the range 0.5 to 2 meters per minute depending on thickness.As welding is performed in high vacuum environment ,defects are eliminated.Materials which are highly reactive like titanium,zirconium,aluminium alloys can be welded successfully for strategic applications.WELDING IS PERFORMED IN SINGLE PASS  EVEN FOR VERY HIGH THICKNESSES USING KEYHOLE TECHNIQUE.As high as 300mm thickness is welded using high power machines commercially available.

LASER beam welding

LASER stands for light amplification by stimulated emission of radiation.There are commercially available solid state and gaseous LASER machines in different power capacities to weld small thicknesses to 25 mm.LASER is a versatile tool and can be used for cutting,drilling,surface alloying,hardening,  welding,  engraving  and trimming applications.