search.noResults

search.searching

dataCollection.invalidEmail
note.createNoteMessage

search.noResults

search.searching

orderForm.title

orderForm.productCode
orderForm.description
orderForm.quantity
orderForm.itemPrice
orderForm.price
orderForm.totalPrice
orderForm.deliveryDetails.billingAddress
orderForm.deliveryDetails.deliveryAddress
orderForm.noItems
the offered time-saving and material economy benefits being particularly attractive for automobile manufacturers. Due to laser welding being a


key process in the production of batteries and motors for electric vehicles, the number of possible applications of OCT monitoring is increasing further with the ongoing global transition towards emission-free transport, and the resulting emergence of the e-mobility market. Among these are the welding


of power storage and power train components, such as copper hairpins in the stator of an electric motor. It has been shown that OCT technology can be successfully used for fast and exact localisation of hairpins, and fast quantitative quality assessment of the weld bead during processing. The benefit of OCT over other inspection techniques here is


enough to guarantee a sufficient bonding cross section for a minimum resistance and maximum strength, while not penetrating through the busbar into the highly sensitive battery cell. Lessmüller Lasertechnik has tested this with alumina material (2.0mm Al onto 1.2mm Al) at a penetration depth of around 2.6mm. OCT technology was used for the online measurement of the weld depth during processing, and achieved results that matched those later obtained with microscopic images taken of the weld cross section. OCT is a potential technology


for enabling the growing use of electrical propulsion systems in aircraft, as, like automotive, new laser processes with the highest precision and reproducibility will be required in their manufacture. Together with the industrialisation of OCT for laser


“It has been shown that OCT can be successfully used for fast and exact localisation of hairpins, and quantitative quality assessment of the weld bead “


that it offers not only three- dimensional visualisation of the hairpins, but also direct real-time height measurements. The exact height of each pin is crucial for the adjustment of the focus and power density of the processing beam, which enables the copper to be welded with minimised heat input and without spatter. The height difference of the hairpin couple before and after welding gives an insight into the volume of molten metal, which, together with the other measured surface profile parameters of the bond, are determining factors for the hairpins’ weld quality, which in turn is essential to ensure proper electrical efficiency and mechanical strength. Another application in the


e-mobilty sector is the welding of busbars in various material combinations and geometries. The weld has to be profound


welding, the development of industrial solutions for sequential online pre-, in- and post-process control with OCT are ongoing. An essential future development will be the use of OCT keyhole depth data for closed-loop laser power control to maintain constant weld depth. All these potential merits of


OCT and the 3D nature of its data, make it in many respects superior to traditional process monitoring technologies. It empowers highly productive and flexible production-line layouts with increased throughput and yield. OCT makes welding in series production faster, more accurate, and thus more cost-effective than currently achievable with today’s conventional sensor technology. l


Dr Nataliya Deyneka-Dupriez is the technical editor of Lessmüller Lasertechnik


WWW.LASERSYSTEMSEUROPE.COM | @LASERSYSTEMSMAG


 6-axis numerical control system  Steers up to 3 Smart DeflectorsTM and up to 3 stepper drivers  Full 3D hybrid marking support  Controls up to 17 digital and 4 analog IO’s  Direct AC (110-240 V) or DC (24-48V) power connection  Up to 8 systems can be interconnected as master/slave  USB and Ethernet for host connection  Ethernet, CAN and UART for system integration  DIN rail mountable  Modular internal construction for easy customization  Application interface through G-code or DLL  Configuration software for activation of advanced features


Evolution co-financed by the European Union


Newson NV www.newson.be


Moving Optics


Smart DeflectorsTM Application Adaptable Laser Beam Steering


 Smart DeflectorTM can be fitted with 10, 15, 20 and 30 mm aperture mirrors  Fully integrated rotational servo system  Available angular ranges: 800, 640, 180 mrad  Single coaxial SDP (Shared Data Power) connection  20 bit set point control  Low drift (typical 12µrad/8 hours)  Low temperature coefficient (typical 25 ppm/°K)  Patented moving coil drive with low inductance for superior speed  Fully digital H-bridge for single supply (12VDC) operation at maximum efficiency  Spring preloaded hybrid bearing system for long life time  Field replaceable mirrors and auto tune support


Evolution co-financed by IWT-Vlaanderen (SME-Innovation project)


CUA32 control card Probably the highest value 6-axis controller in the world


Page 1  |  Page 2  |  Page 3  |  Page 4  |  Page 5  |  Page 6  |  Page 7  |  Page 8  |  Page 9  |  Page 10  |  Page 11  |  Page 12  |  Page 13  |  Page 14  |  Page 15  |  Page 16  |  Page 17  |  Page 18  |  Page 19  |  Page 20  |  Page 21  |  Page 22  |  Page 23  |  Page 24  |  Page 25  |  Page 26  |  Page 27  |  Page 28  |  Page 29  |  Page 30  |  Page 31  |  Page 32  |  Page 33  |  Page 34  |  Page 35  |  Page 36  |  Page 37  |  Page 38  |  Page 39  |  Page 40  |  Page 41  |  Page 42  |  Page 43  |  Page 44  |  Page 45  |  Page 46  |  Page 47  |  Page 48