At STRION LASER, we continue to advance the frontiers of industrial welding with our robust and efficient automation systems. Our latest project features automated welding of carbon steel tube-sheet assemblies, delivering high-precision results with exceptional speed and quality.
Application Overview
Material: Carbon Steel
Workpiece Type: Tube-Sheet Welding (Fillet Joint)
Welding Method: Fillet Welding with Wire Feeding
Equipment Used: STRION AW450 / HW350
Welding Time Requirement: Within 5 seconds per joint
Welding Goal: Aesthetic weld seam with minimal crater at arc end
Key Welding Parameters & Techniques
To achieve optimal weld quality, the process hinges on synchronizing positioner rotation speed with wire feeding speed, ensuring uniform deposition and consistent seam formation.
Crater Control: The weld end must slightly overlap the start point by 2–3 mm to eliminate gaps or underfill.
Two Seam Finishing Methods:
Method 1: Controlled arc downslope with light-off at 365° position while allowing the positioner to rotate up to 370°, effectively minimizing arc crater.
Method 2: Maintain laser output 0.5–1s after reaching 370°, allowing weld pool to fill before shutting off, ensuring a full and smooth finish.
Smart Wire Break Control
To prevent excess weld spatter or wire tailing, STRION LASER systems support dual modes of wire breaking:
Method A – Wire Retract Break:
Wire is retracted at the end of the weld. After tuning the feed structure and verifying through dry-run tests, this method works seamlessly with downslope power or final crater-fill pulses.
Method B – Torch Lift Break:
Without retracting the wire, the torch lifts 1 mm while keeping the laser active, causing the wire to melt and break naturally before light-off.
STRION LASER’s automated solutions are engineered for speed, stability, and repeatability, empowering manufacturers to scale up high-volume production while maintaining top-tier welding aesthetics and structural integrity.
Interested in upgrading your welding automation?
Reach out to our team at str@strlaser.com or explore more at www.strlaser-en.com.
