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Bijeenkomst kring Materiaalbewerking Lasers

Algemene informatie

donderdag 15 oktober

Dear members of the “Kring voor Materiaalbewerking met Lasers”,


We would like to invite you all to the next meeting, which will be organized on:  Thursday 15 October 2015 at the High Tech Campus in Eindhoven. This meeting is co-organized by the Laser Forum.




13.30 – 13.45  welcome and coffee


13.45 – 14.00  Bert Huis in ’t Veld  – president of  the Kring voor Materiaalbewerking met Lasers.


Information of the board


14.00 – 14.30 Walter Goethals, Diamond Tools Group Valkenswaard


Laser Micro-Machining of Diamond

One of the first applications of the newly invented laser in 1960 was to drill small holes in diamonds. Today lasers are widely used for sawing, drilling and micro-machining of all sorts of diamond.  Despite more than 50 years of development, creating complex shapes out of diamond is still a process that can be surprisingly difficult to control. In this presentation some practical experiences with trying to control the laser process will be discussed and illustrated with some wonderful examples.


14.30 – 15.00 Guilherme Mallmann, IPT Aachen  


High precision inline low coherence interferometry and optical coherence tomography for monitoring of laser processes
Within this presentation, the low coherence interferometry and the optical coherence interferometry are presented as alternative to the state of the art monitoring solutions for laser processes. Such distance measurement systems are able to be integrated coaxially to the optical path of a laser processing head, wherever scanning or fixed optic based, and enable a material and surface independent monitoring prior, during or after the process. Applications cover the characterization of the workpiece’s real shape and position for a machine adjustment, the set-up of an adaptive machining and the final workpiece inspection.
The achieved results for laser cutting, laser micro machining and laser transmission welding validate its usage for inline distance measurement in different technological scenarios.

15.00 – 15.30 Markus Kogel Hollacher, Precitec Optronik GmbH, Neu-Isenburg


Low Coherence Interferometry.



15.30  -16.00 coffee break


16.00 – 16.30  Koos Krutwagen, IAI Veldhoven 


Industrial applications of Q switched CO2 lasers



16.30 – 17.00  Armand Pruijmboom, Philips Photonics Systems, Aachen 


High-Power VCSEL arrays for thermal treatment


Thermal treatment may be by far the most frequent process used in manufacturing, but only at a few places lasers could make an inroad. For thermal treatment homogeneous illumination of large areas at a lower brightness, and accurate temporal as well as spatial control of the power is required. This is complicated for conventional high-power lasers, while VCSEL arrays inherently have these capabilities. By forming large-area arrays with hundreds of VCSELs per mm2, power densities of >100 W/cm2 are achieved, making VCSEL arrays an ideal solution for many heating applications, ranging from melting and welding of plastics and laminates to curing, drying and sintering of coatings.



Lab visit and drinks.

We offer a possibility to visit Laser labs of Philips Innovation Services under guidance of Rene Sanders.

For more information see




Location of the meeting:

High Tech Campus, Eindhoven, Building HTC 7


Participation: free of charge for members of BvM and members of Laser Forum.

Non members: 50€ OR 2 years membership: 50 € in 2015  and the regular fee in 2016.

Registration: Please send  an e-mail to BvM, to the attention of Karin van Bakel. Max number of attendees: 30



We hope to see you on Thursday 15th of October 2015 at Philips Innovation Services.

Kind regards,

The organizers  Rene Sanders and Bert Huis in ’t Veld

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