OCTSCAN 2.5
Remote laser welding
Direct integration of our OCT analytics
Synchronous measurement
Keyhole measurement during wobbling movements
Direct check
Real time inspection of the weld seam
Positioning
Corrections to the component position before or during the process
REMOTE LASER-WELDING OPTIC OCTSCAN 2.5
OCT 250 integrated 2.5D scanner-based welding optic for remote welding applications
With the OCTSCAN 2.5 system Lessmüller Lasertechnik provides a complete solution that seamlessly integrates OCT analytics (optical coherence tomography) into remote laser welding applications.
OCTSCAN 2.5 enables seam tracking as well as measuring the keyhole depth in real time. The possibility to analyze the topography of the weld (seam inspection) after processing demonstrates the full capabilites of this tool for demanding applications.
The communication with the main control of the laser cell is realized by ethernet-based fieldbus protocols, enabling a straight forward integration of the remote optic with comparable effort like a fixed optics.
The welding optic is realized with direct control of the laser processing head and the OCT system, enabling a highly dynamic OCT measurement synchronous with the laser process. This synchronous control allows OCT analysis of the keyhole depth. Due to this integration even during wobble movement of the laser processing optics a precise seam tracking and keyhole measurement can be realized. Please find further detail in the publication https://lia.scitation.org/doi/10.2351/7.0000898
The laser welding optic OCTSCAN 2.5 provides:
- Keyhole measurement by OCT analytics during the welding process
- Determination of the exact position of the work piece prior to the welding process
- Precise an fast online correction of the welding position by seam tracking
- Real time adjustement of the focus position based on the OCT measurement (auto-focus)
- Analysis of the topography of the finished weld seam (POST-measurement)
The complete system can be parametrized and initialized utilizing the established Lessmüller Software. The measured data can directly be analysed and also be logged for later evaluation and quality control. By this even long term analysis of the process stability and fluctuations can be established.
The performance of the OCTSCAN 2.5 system can be extended using Lessmüller’s WELDCHECK sensor by Lessmüller or by integrating custom camera solutions for a coaxial observation.
Advantages using the OCTSCAN 2.5
Efficient remote welding using solid state lasers and F-theta scanning optics
Full OCT-performance for Pre-, In- und Post-analytics also during wobble welding applications and for tight radii at high speeds
Recognition of geometric features on the part to exactly position the processing laser relative to the work piece
Fast focussing lens for controlling the focus position
Extensible with WELDCHECK (diode-based quality assurance system)
Fast calibration of the TCP (Tool Center Point) and confirmation of the focus position utilizing the optional ACAT system
Advantages using OCT
Real-time measurement of the key hole depth and seam inspection based on one coaxial sensor system
Fast and precise seam tracking of various seam configurations as well as seam tracking in various directions and orientations
Robust and validated recognition and evaluation algorithms for various surface features and seam geometries
Online recognition and immediate communication of weld and seam failures
Measurement technology independent of process and other stray lights
Whether integrated into a processing laser or used as a stand-alone system, by using the OCT system from Lessmüller Lasertechnik you are making the choice for the most powerful quality assurance for welding processes on the market.
The ability to use the system for all types of process monitoring, i.e. as pre-, in- or post-process, guarantees you the best possible technical welding quality in your manufacturing production according to today’s standards.
The primary task of OCT sensor technology is to prevent incorrect positioning of the processing optics or the laser beam. This can be done even before welding by recognizing the actual weld seam geometry and, if necessary, the welded joint. preventive corrections can also be made during the welding process through continuous, automated readjustment (seam tracking).
Des Weiteren kann während des Schweißenes die Einschweißtiefe ermittelt und überwacht werden. Furthermore, the welding depth can be determined and monitored during welding.
Ultimately, the OCT from Lessmüller Lasertechnik can even be used to measure the topography of the weld seam and check for defects both during and after the welding process.
As OCT works independently of extraneous or interfering light, the detectability and measurability of impact geometries can already be estimated in the planning phase. There is no need to create complex lighting simulations such as for camera systems.
By using OCT for keyhole measurement, it is possible to determine whether the welding process is safe, consistent and reliable in essence during the initial welding tests prior to the feasibility studies. OCT thus contributes to the improvement and optimization of welding processes.
To measure the POST process, offline tests can also be carried out in parallel with the ongoing process development.
We are your contact before and after the successful completion of the project. Our customers know this and appreciate us for it.
In the field of electromobility, our customers include battery manufacturers from China and Korea, and we work with many system integrators: Bergmann & Steffen, Erlas, Felsomat, Thyssen Krupp Engineering, Manz, Comau, Evobeam, Aumann, etc.Ask us for detailed information.
APPLICATIONS
Our OCT solutions have already proven themselves here
OCT has established itself in practically all manufacturing productions as an optimal and comprehensive tool for quality assurance of industrial laser welding processes. The technology is trend-setting and is already considered the standard solution par excellence in many industries.
And the development continues: For example, Lessmüller Lasertechnik is supporting the Friedrich Alexander University (FAU) Nuremberg-Erlangen in the KIKoSA research project to optimize laser welding processes through the use of artificial intelligence (AI).
If you would like to learn more about the technical basics of OCT, we recommend the guidelines of the Association of German Engineers (VDI).
Our OCT solutions have already proven themselves here …
Product advice
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Laser welding product solutions
OCT 250
LSO
LSO / straight
OCTSCAN 2.5
Downloads
OCT for scanner and fixed optics
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WHERE YOU FIND US
Lessmüller Lasertechnik GmbH
Gollierstraße 12
D-80339 München
Tel.: +49 (0)89 – 360 90 48 – 0
Fax: +49 (0)89 – 360 90 48 -29
Email: info[Ω]lessmueller.de
Web: www.lessmueller.de
Location: Google Maps
(Representation for OCT only)
OPTOPRIM Italia s.r.l.
Via Carlo Rota, 37
20900 Monza
MB – Italy
Phone.: (+39) 039 834977
Fax: (+39) 039 2845269
E-Mail: info[Ω]optoprim.it
Web: www.optoprim.it
Li10 LLC
Jonathan Clayton
55-B Concourse Way
Greer 29650
South Carolina, USA
Phone: +1 864-414-4340
Mail: jmclayton[Ω]li10na.com
Web: www.li10na.com
INTECH Co.,Ltd
Yukihiro Okumura
2-39-17-101, Kamiogi,
Suginami-ku Tokyo,
167-0043, Japan
Phone: +81 3-3301-9671
Fax: +81 3-3301-9672
Mail: sales[Ω]intech-jp.com
Web: www.intech-jp.com
HUBIS CO.,LTD.
57, Techno-1ro,
Yuseong-gu, Daejeon,
South Korea (34014)
Phone: +82 42-862-2080
Fax: +82 42-862-2088
Mail: support[Ω]hubis.co.kr
Web: www.hubis.co.kr
Lessmueller Laser Technology (Shanghai) Ltd.
Leo Wu
102, No. 8 Building
No. 6066, Songze Avenue
Qingpu District, Shanghai, China
Phone: +86 138-1610-9785
Mail: info[Ω]lessmueller.cn
Web: www.lessmueller.cn
Suresh Indu Lasers Private Limited
Plot No. Plot 117 & 118,
Ramtekdi Industrial Area
Hadapsar, Pune – 411 013, India
Phone: + 020 6708 1000
E-Mail: info[Ω]silasers.com
Web: www.silasers.com
