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ESAB’s Hybrio™ hybrid
laser welding technology combines the deep weld penetration and low heat
input associated with laser welding with the excellent weld properties
and superior gap tolerance of Gas Metal Arc Welding (GMAW). A radically
new welding alternative, it produces extremely narrow and deep welds at
very high travel speeds. In a single pass, the Hybrio™ process can often
achieve what might require multiple weld passes using a conventional
fusion welding process. Heat input to the part is reduced, as is the
associated weld shrinkage and distortion that can make post-welding
geometry unpredictable – and costly to repair.
Using GMAW in
combination with a laser, the Hybrio™ process solves laser-only
welding’s limitations, concerning its ability to produce acceptable
welds in joints with less than perfect fit-up between parts. This
enables a widened, more robust process envelope by a factor of three
compared to a conventional laser-only process. GMAW also allows users to
add filler metal to adjust the weld’s metallurgical properties and
create beads and fillets, while the slower cooling rate reduces
hardness. These features are especially beneficial when joining high
performance carbon and stainless steels.