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Cutting

BOOTH 16
E 100.ROB
Combi-processing Forgives Tolerances
Laser cutting and welding with one tool - combi-processing - leads to more flexibility in short process chains with less equipment and reduced clamping, positioning and handling operations. Since the tool center point (TCP) of the combi-head is identical for both processes, the accuracy in locating the subsequent process relative to the previous process track is significantly increased.

By measuring the workpiece position and geometry with the capacitive distance sensor - possibly during cutting operations, a dynamical coordinate correction of the path for subsequent welding and cutting processes can be accomplished. In this way, parts with huge tolerances such as deep-drawn parts, bent components or profiles or unprecisely clamped parts can nevertheless be produced with high accuracy of important geometrical features.

As an example, U-profiles are cut to length, simultaneously gauged and flange plates are joined to the profile by a stake-weld. The path of the weld seam and subsequent cutting operations are positioned according to the measured profile geometry.

Contact Person
Dr. Frank Schneider
Phone +49 241 8906-426
frank.schneider@ilt.fraunhofer.de
Fraunhofer Institute for Laser Technology ILT

BOOTH 17
E 100.ROB
High Speed Cutting and Welding
Fiber-coupled 1? lasers achieve cutting speeds in thin sheet metal far above those possible with CO2 lasers. 1mm thick sheets can be cut with speeds in the range of 100m/min. Highly dynamical machines allow to apply these speeds also in contour cutting. The achievable productivity and quality is better than in remote cutting, considering typical automotive sheet applications. So laser cutting partly substitutes mechanical blanking, that suffers from difficulties in cutting high strength steel grades. Similarly, 2D welding applications profit from high-speed laser processing.

Fraunhofer ILT is building a laboratory machine for enhanced process development and diagnostics of high speed applications. The machine has an accelaration of 4g for processing speeds of up to 300m/min at excellent accuracy. To allow visual access from various perspectives, the processing head remains in a fixed position while the workpiece is moved in X and Y direction on double gantry axes. Thus diagnostics equipment as high speed cameras and detectors can be installed stationary without dynamic load.

Contact Person
Dr. Frank Schneider
Phone +49 241 8906-426
frank.schneider@ilt.fraunhofer.de
Fraunhofer Institute for Laser Technology ILT

BOOTH 36
E 100.DL1
High-end Laser Cutting Machine
The latest state-of-the-art in CO2 laser cutting is visible in the TruLaser 5030 machine from Trumpf. With a single cutting head strategy and a 6 kW CO2 laser source the machine can cut thin and thick materials without changing the cutting head. The machine is installed at Fraunhofer ILT as a business-case within the Cluster of Excellence "Integrative Production Technology for High-Wage Countries" of the RWTH Aachen University. As a first step to the introduction of cognition into laser cutting machines, Fraunhofer ILT develops a self-optimizing laser cutting process automatically adapting the focal position. The control concept is based on optical real-time process diagnostics and a machine-integrated metamodel. In this context Fraunhofer ILT presents the TruLaser 5030 additionally equipped with a coaxial process camera, a real-time LabVIEW controller and an implementation of a first metamodel for analyzing the process condition and defining the target parameters.

Contact Person
M. Sc. Thomas Molitor
Phone +49 241 8906-426
thomas.molitor@ilt.fraunhofer.de
Fraunhofer Institute for Laser Technology ILT

BOOTH 18
E 100.RO
Laser Processing Heads for Cutting and Welding
Laserfact GmbH develops, produces and delivers beam tools for flexible manufacturing with lasers. The aim of Laserfact is the provision of laser processing heads which perform extremely reliably, efficiently and flexibly in industrial laser applications. By using sophisticated optics and nozzle design combined with solid engineering the products of Laserfact achieve optimum performance with striking simplicity in construction, operation and application. Laserfact supplies beam tools for laser cutting and laser welding with CO2 lasers and solid-state lasers. A speciality of Laserfact are combi-heads for flexible laser cutting and laser welding of sheet metal components without changing heads. A combi-head allows software-controlled process change on demand and with it significant cost savings regarding investment and operation. Among other Laserfact products a new version of the laser combi-head, being specially developed for coaxial mounting on robots and gantries with integrated beam guiding, is presented within a 3D laser gantry of Reis Robotics.


Contact Person
Harald Dickler
Phone +49 241 8906-438
dickler@laserfact.de
Laserfact GmbH

BOOTH 46
R1160.4
Remote Laser Cutting of Metal Sheets with Highly Brilliant Beam Sources
Fine cutting with remote laser processing is particularly interesting as a means to save costs in the production of prototypes and small series, because it offers much greater flexibility and freedom with regard to component geometry than conventional methods such as milling or punching.

Fraunhofer ILT forces the development of remote technologies by showcasing a remote fine cutting system as an example for the successful implementation of its modular process configuration. A suitable optical system with a matching laser beam source is integrated in a machine housing and, if necessary, fitted with additional sensors or a clamping device. The system can be used for inscribing, plastic welding, microstructuring, remote laser cutting or metal welding. In this case a 1kW single mode fiber laser and a mirror scanner, the unit can machine components in the millimeter range at cycle times of less than 100ms. Cuts of 20?m are achieved with suitable optical systems, so that precision parts, such stator sheets for electric motors, can be processed rapidly and accurately.

Contact Person
Dipl.-Ing. Joachim Ryll
Phone +49 241 8906-463
joachim.ryll@ilt.fraunhofer.de
Fraunhofer Institute for Laser Technology ILT
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