ESAB RTP | 2024

Development of the RTP (Robust Torch Positioning) laser-guided joint tracking system for automated submerged arc welding (SAW) of circular workpieces. RTP is designed for semi-narrow grooves where the workpiece can drift on roller beds and where joint preparation may include significant imperfections—conditions that demand highly robust seam tracking. The system combines upstream groove measurement with high-frequency, real-time torch correction (≈150 updates/s) to keep the torch accurately positioned throughout welding, with dedicated scanner hardware and a defined calibration workflow.