Hand-held Laser Welding VS Traditional Electric Welding

What are the advantages of hand-held laser welding over traditional welding and laser welding?

 

 

 

 

PROGRAM	TRADITIONAL WELDING	LASER WELDING	HAND-HELD WELDING
Heat Input	High	Low	Low
Deformation, Undercut	Series	Slight	Slight
BondStrength	Normal	Good	Excellent
Follow-upProgram	Polishing	HardlyEver	Hardly Ever
Speed	Ordinary	More than 2times argonarc welding	More than 2times argonarc welding
ApplicableMaterial	Stainless Steel, Carbon Steel, Galvanized Sheet	Stainless Steel, Carbon Steel, Galvanized Sheet	Stainless Steel, Carbon Steel, Galvanized Sheet
Consumables	More	Less	Less
OperationDifficulty	Difficult	Normal	Easy
OperatorSafety	Unsafe	Safe	Safe
Environmental Protection	Un-environment	Environment	Environment
Welding Fault Tolerance	High	Low	High
SwingWelding	Can’t	Can’t	Can
Spot Width	Unable	Unable	Adjustable
WeldingQuality	Less	Normal	Excellent

In fact,in conventional laser vibration welding, the collimated beam is vibrated by a uniaxial galvanometer.

And the spot focused by the focusing mirror is moved with the welding head to move relative to the workpiece to form a weld having a certain amplitude, frequency and offset.

Besides, comparing to the first two vibration welding modes, the double wedge mirror rotational vibration welding produces a spiral weld seam.

By the vibration module mounted between the collimating mirror and the focusing mirror.

So that the focusing spot moves while the welding head moves.

When the focal length is the same, the larger the torsion angle is, the larger the vibration amplitude is.

Therefore, double wedge vibration welding allows the weld joint to be widened while achieving better weld formability.