Laser welding is an advanced welding technology, a combination of modern technology and traditional technology, yet with characteristics different from traditional arc welding. It has obvious advantages such as electromagnetic interference resistance, narrow weld seams, narrow heat-affected zone, beautiful and smooth welding surface, high welding strength, safe and contactless, no remelting issues, and high processing precision.
A video from OFweek is cited here to illustrate the advantages and development history of laser welding.
Due to equipment cost, laser welding has long been applied only in automotive production, aerospace, and high-end manufacturing.
In recent years, with major breakthroughs in domestic laser welding technology and significantly reduced equipment costs, laser welding has been widely adopted across industries. Many traditional welding scenarios such as argon arc welding are being replaced by laser welding.
To make laser welding more convenient and efficient for users and to promote the wider adoption of robotic laser welding, the INEXBOT control system has launched a dedicated laser welding system. Domestic robots equipped with the INEXBOT system can easily upgrade to laser welding processes.
The INEXBOT laser welding system comes with built-in PWM output and requires no dedicated PLC or control equipment, making it simpler and more streamlined than traditional welding. Compared with previous laser welding, it adds dynamic power, intelligent wire feeding, and PWM high-speed pulse control functions, making the welding process smarter, faster, and more stable.
System Features
Dedicated Laser Welding Instructions
Traditional robotic laser welding is controlled by PLC, inevitably requiring a large amount of PLC programming and involving numerous IO calls, which is extremely complex.
The INEXBOT robotic laser welding system has built-in dedicated laser welding instructions that completely replace PLC programming. Only a few simple instruction lines are needed to work. The interface has also been fully optimized to help users quickly create programs, and it includes spot welding instructions for spot welding scenarios.
Expert Parameters
After in-depth research on laser welding, INEXBOT summarized and refined the expert parameters required for laser welding and carefully designed them into a concise and efficient parameter interface. The parameters are simple and clear, enabling rapid deployment while supporting a high degree of customization for complex laser welding scenarios.
High-Precision Welding
Thanks to the dynamics-based motion control algorithm of the INEXBOT control system, the robot suppresses jitter while running at high speed and maintains high precision, fully unleashing the potential of high-speed, high-precision laser welding.
Dynamic Laser Power Adjustment
Laser welding is prone to undercut, i.e., poor bonding between the weld and the base material, resulting in grooves. It can also have problems such as excessive temperature at the end and insufficient temperature at the start, all caused by poor matching between welding speed and power during laser welding. The INEXBOT laser welding system has a built-in dynamic laser power adjustment function that perfectly solves the above problems.
Dynamic Wire Feed Speed Control
Some laser welding scenarios have problems such as hot cracking (e.g., crystal cracks, liquation cracks), where filler wire welding is needed to reduce or eliminate cracks.
With traditional wire feeders, once welding starts, the wire feed speed becomes uncontrollable, easily causing weld buildup. The INEXBOT laser welding system has developed a real-time controllable wire feed speed function on this basis, ensuring beautiful welds.
Fine Power Control
A major advantage of laser welding is that by adjusting the power to keep the metal surface temperature near the boiling point, metal spatter or cratering during welding can be avoided.
The INEXBOT laser welding system has built-in dual control methods of analog and PWM (high-speed pulse), enabling high-precision fine control of the laser power density on the metal surface, and convenient adjustment of laser precision for different base materials.
Laser Vision Tracking and Position Search
Laser welding has the advantage of high-precision welding, but high processing precision also means the processing position of the base material requires high precision, which poses a great challenge in actual production environments.
The INEXBOT laser welding system has built-in laser vision tracking and position search functions. Used together with laser welding, it can automatically find the weld seam position; even if the processing position has some error, it can be automatically compensated, making the welding process more efficient and deployment faster.
Dynamic Galvo Mirror Pattern Adjustment
The same workpiece may have multiple different weld seams requiring different spot sizes and shapes. To avoid manually adjusting the galvo mirror after each weld seam, the INEXBOT laser welding system has a built-in dynamic galvo mirror adjustment function. Combined with the dynamic power adjustment function, the power density on the metal surface remains unchanged after switching spot area and shape, ensuring consistent welding results across weld seams.
Secondary Development System
For users' personalized needs, INEXBOT can provide a laser welding process secondary development kit. The kit encapsulates all laser welding functions, allowing users to develop their own laser welding interface for their own needs, turning the laser welding process into their own laser welding process. INEXBOT Open Platform
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