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A unique application of laser welding technology is remote or scanner welding. Large focal lengths, quick deflection mirrors, and frequent coupling to industrial robots are all characteristics of remote laser welding systems.
Although remote laser welding RLW is frequently used to connect metals in the automotive industry in Europe, RLW systems are not widely used in the manufacturing industry in North America.
But for high-volume industrial applications where resistance spot welding is currently used, employing remote laser welding makes perfect sense.
A remote laser welding system, or cell, is substantially faster than conventional welding systems and doesn’t require much space on a work floor.
In contrast to a resistance-welding cannon, which produces one weld every three seconds, RLW systems often create two to five welds each second.
Long-term cost savings also apply to material processing applications that call for numerous spot welds on a single assembly.
The Global remote laser welding robot market accounted for $XX Billion in 2022 and is anticipated to reach $XX Billion by 2030, registering a CAGR of XX% from 2023 to 2030.
Recently, high-power fibre lasers with desirable properties for applications in materials processing have been developed .
For high speed RLW with extended focal lengths, high-power fibre lasers with excellent beam quality can provide ultra-high peak power densities of many MW/mm.
High productivity is provided by scanner-integrated RLW because of its quick welding speed and short cycle time.
Depending on the laser power being used, the welding speed can range for standard plates to for specialty plates.
In comparison to MIG or resistance spot welding, a remote fibre laser welding system can weld more than twice as quickly .
Remote laser welding of aluminium is an affordable method that does not require filler wire.enhanced process stability and improved weld seams thanks to laser power applied selectively.
The remote laser welding with a standoff up to several hundred millimetres became generally practical in industrial welding applications because of solid-state laser sources.
For this, a pair of high-speed, galvanometer-driven mirrors are steering the beam in a 2D space, and in the case of 3D applications, a fast focusing mechanism swiftly adjusts the focus distance .
These devices are able to move a laser spot inside their work envelope in a matter of milliseconds and guide it with extreme precision.
An industrial articulated arm robot can be utilised to steer the scan head if the work envelope of the scanner optics is not sufficient to cover the target region to be welded.
