IPG’s new monitoring systems are the next paradigm in industrial weld quality assurance. The LDD-700 weld monitoring system uses Inline Coherent Imaging (ICI) to provide a new level of detail and accuracy for laser weld monitoring. ICI uses a low-power IR laser beam to gauge distances. This measurement beam is fired through the same optics as the welding laser, right to the bottom of the keyhole, and records its depth in real-time. The result is a direct, geometric measurement of weld penetration, acquired in-process. This data is comparable to a cut and etch of the entire length of the weld—for every weld—without destroying the part—and the results are available instantly.

Multi-factor Monitoring
• Keyhole Depth
• Workpiece Height
• Seam Position
• Finished Weld Profile
• Transverse Weld Profile
Direct Weld Penetration
Active Process Control
Automatic PASS/FAIL
Seamless Integration with IPG Beam Delivery

Parameter Name	Parameter Value
Applications	process laser welding weld quality
Other characteristics	real-time