LDD Weld Monitoring

LDD Weld Monitoring

LDD Weld Monitoring

Laser Depth Dynamics’ (LDD) patented imaging technique is the only technology that delivers direct, geometric measurements of laser weld penetration – during the weld. Inline Coherent Imaging, or ICI, uses a low-power IR laser beam to gauge distances and the extra distance from the material surface to the bottom of the keyhole is the weld penetration. This measurement beam is directed through the same optics as the welding beam, getting focused right to the bottom of the keyhole’s vapor channel and returning the actual penetration in real time. The resulting data is equivalent to a lengthwise section of the weld, delivered instantly, with no additional labor and without destroying the part. No more destructive testing and weld quality data saved for each weld produced.
Laser Mechanisms has designed the LDD system seamlessly into all of its FiberWELD® heads and it can also be integrated into Laser Mech® CO2 beam delivery systems

The LD-600 is LDD’s flagship inline coherent imaging system. This instrument, when combined with a 3D Module and Laser Mech® focus head, offers the full range of ICI capabilities.

Capable of seeing through the blinding process beam and plasma, the LD-600 can image the interaction region of your laser process with a sampling rate over 200 kHz.

Whether you need real-time laser depth measurement and feedback, instant weld QC metrics, hundred-megapixel images of your process dynamics at a tens-of-microns resolution, through-the-lens autofocus and seam tracking, or more, the LD-600 can do it all.

The LD-600 is made up of an LDD-600 rack-mount unit, its 3D Module mounted on Laser Mech® beam delivery, and a computer interface to interpret data and to allow for downloading of the data to a QC system.

Inline coherent imaging (ICI) is the ideal process monitoring and control technology for laser welding, drilling and ablation. ICI yields unprecedented images of the interaction region in a wide variety of laser processing applications. Laser Depth Dynamics instruments are completely immune to being blinded by the process beam, plasma or other sources. LDD’s systems can deliver high-resolution, high-speed depth images of the entire process region, including the inside of the keyhole. On-line image analysis is possible, along with the ability to provide real-time feedback control of height, laser power and more.

ICI can be used with all types of lasers; Fiber and Disk, Direct Diode, CO2, Green, UV, pulsed and CW.

CW laser welding to over 10mm penetration, low power laser spot welding, surface ablation and drilling applications, as well as cladding and additive manufacturing surface measurements are all possible with ICI.


Previous Page