There are large bore hole
professionals – and small
precSYS – Micro-Machining System
The sub-system for industrial USP laser micro-machining
with flexibly definable bore geometries – even at high
• Clean-cut, burr-free bore holes in the µm range
• Graphical user interface for intuitive operation
• Robust, modular system design
• Intelligent hardware/software interfaces enable
• 5-axis processing for high fabrication flexibility
• System smartness thanks to embedded PC and
Questions and individual requirements? Just contact us:
Scanner technology continues to advance, enabling further visibility and control of the welding process. Optical coherence tomog-
raphy (OCT) is expected to provide a next leap forward in this
respect, as it is a single-point measurement approach that can
gather distance data on a micrometer scale at frequencies in the
kilohertz region. In principle, it is an interferometer setup with one
beam path (measurement arm) directed at the work piece, and
a second beam path of known length (reference arm). State-of-the-art implementations of this sensor in fixed laser-optic heads
have recently been introduced to the market (e.g., Precitec IDM).
This interferometer uses a superluminescent diode with a wavelength in the near-infrared range and fiber-coupled beam delivery.
Together with suitable beam steering of the measurement beam,
the following measurement tasks can be enabled:
• Pre-process: Seam finding ahead of the welding laser;
• In-process: Measurements in the melt pool area or inside the
• Post-process: Topography measurement of the weld seam.
Work is currently underway to fully integrate OCT technology
with Blackbird’s scanner welding solutions based on the intel-
liWELD 3D scan heads. The following challenges are being
addressed for this:
• A second x-y scan system coupled into the observation port of
the welding scan head to enable scanning the measurement
beam in a truly calibrated manner;
• A focusing mechanism for the measurement beam that matches
the speed of the welding heads’ z-axis; and
• An integrated software and control environment that allows setup
of the seam tracking or measurement task in a convenient and
implicit way during programming of the weld figures.
In the first implementation, this will allow seam tracking ahead of
the weld zone and for post-weld topography measurement. The
initial data taken on a first prototype system (FIGURE 3) promises to
result in an optical system with unprecedented capabilities in this
regard, with pilot systems scheduled to be placed in the field in the
Remote laser welding is a highly productive processing method,
which is enabled by the seamless control integration of optical scan
heads, industrial robots, and optical sensors. Historically, it was primarily used to replace resistance spot welding of overlap joints in
automotive components (such as hang-on parts and seats). With
the current state-of-the-art scanners and software control capabilities, the application scope of remote welding has been extended to
enable welding of a variety of complex high-volume components,
with new applications continuing to emerge. ✺
[ 1] R. Daub, B. Nitschke, and A. Heckert, “Laser welding with beam oscillation,” EALA 2015, Bad
Nauheim, Germany (2015).
[ 2] M. Pälmer, “Laser application in manufacturing aluminum doors for the new Mercedes Benz
S-Class,” EALA 2014, Bad Nauheim, Germany (2014).
TIM MORRIS ( firstname.lastname@example.org) is VP of sales and service for
Blackbird Robotics, Inc., Sterling Heights, MI; www.blackbird-robotics.de.