Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

The TWIST® method enables the highest process speed, flexibility and strength for the laser welding of plastics

25.08.2009
The Fraunhofer Institute for Laser Technology ILT will be presenting an innovative and cost-efficient plant concept for the laser welding of plastics at this year's international trade fair for plastics processing, Fakuma. In addition, the institute will exhibit new processes to bond plastics with metal and to laser weld transparent plastics.

At Stand 4211 in Hall 4 of Fakuma (October 13 - 17, 2009, Messe Friedrichshafen), the Fraunhofer ILT will be presenting a novel, compact and industry-ready plant concept to laser weld plastics using fiber lasers.


Bonding metal to plastic with a laser-structured metallic surface and subsequent extrusion.
Fraunhofer ILT.


A TWIST®-welded microfluidics component, minimal canal width < 50 µm.
Fraunhofer ILT.

Thanks to the TWIST® radiation concept, a quick, temporal and localized beam modulation forms the basis for this new laser method. Fraunhofer ILT's researchers in Aachen have developed and qualified TWIST® - "Transmission Welding by an Incremental Scanning Technique" - an innovative process to weld plastics.

When compared to standardized laser plastic welding plants, this new concept significantly reduces investment costs as well as plant size, and is nearly maintenance-free. Furthermore, the TWIST® plant concept is characterized by its higher process speed and flexibility when structuring welding contours, as compared to conventional joining methods. Hence, it is particularly suitable for small and medium series, which require quick retooling. By using new wave lengths in combination with the TWIST® concept, operators are now able to weld transparent components together without an infrared absorber and at high speeds.

To bond metal with commercially available plastics, the Fraunhofer ILT has developed a laser-supported joining process that can dispense with using additional material. A suitable structuring of the metal's surface at high speed allows form fit joints to be attained above the bonds with high strength.

Contact person at the Fraunhofer ILT
Our experts would be glad to answer any questions you may have:
Dipl.-Ing. Andrei Lucian Boglea
Department of Micro Technology
Telephone +49 241 8906-217
andrei.boglea@ilt.fraunhofer.de
Dipl.-Ing. Andreas Roesner
Department of Micro Technology
Telephone +49 241 8906-158
andreas.roesner@ilt.fraunhofer.de
Dr.-Ing. Arnold Gillner
Head of the Department of Micro Technology
Telephone +49 241 8906-148
arnold.gillner@ilt.fraunhofer.de
Fraunhofer Institute for Laser Technology ILT
Steinbachstraße 15
52074 Aachen
Telephone +49 241 8906-0
Fax. +49 241 8906-121

Axel Bauer | Fraunhofer Gesellschaft
Further information:
http://www.ilt.fraunhofer.de
http://www.ilt.fraunhofer.de/eng/100031.html

More articles from Process Engineering:

nachricht Dresdner scientists print tomorrow’s world
08.02.2017 | Fraunhofer-Institut für Werkstoff- und Strahltechnik IWS

nachricht New technology for mass-production of complex molded composite components
23.01.2017 | Evonik Industries AG

All articles from Process Engineering >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Safe glide at total engine failure with ELA-inside

On January 15, 2009, Chesley B. Sullenberger was celebrated world-wide: after the two engines had failed due to bird strike, he and his flight crew succeeded after a glide flight with an Airbus A320 in ditching on the Hudson River. All 155 people on board were saved.

On January 15, 2009, Chesley B. Sullenberger was celebrated world-wide: after the two engines had failed due to bird strike, he and his flight crew succeeded...

Im Focus: Breakthrough with a chain of gold atoms

In the field of nanoscience, an international team of physicists with participants from Konstanz has achieved a breakthrough in understanding heat transport

In the field of nanoscience, an international team of physicists with participants from Konstanz has achieved a breakthrough in understanding heat transport

Im Focus: DNA repair: a new letter in the cell alphabet

Results reveal how discoveries may be hidden in scientific “blind spots”

Cells need to repair damaged DNA in our genes to prevent the development of cancer and other diseases. Our cells therefore activate and send “repair-proteins”...

Im Focus: Dresdner scientists print tomorrow’s world

The Fraunhofer IWS Dresden and Technische Universität Dresden inaugurated their jointly operated Center for Additive Manufacturing Dresden (AMCD) with a festive ceremony on February 7, 2017. Scientists from various disciplines perform research on materials, additive manufacturing processes and innovative technologies, which build up components in a layer by layer process. This technology opens up new horizons for component design and combinations of functions. For example during fabrication, electrical conductors and sensors are already able to be additively manufactured into components. They provide information about stress conditions of a product during operation.

The 3D-printing technology, or additive manufacturing as it is often called, has long made the step out of scientific research laboratories into industrial...

Im Focus: Mimicking nature's cellular architectures via 3-D printing

Research offers new level of control over the structure of 3-D printed materials

Nature does amazing things with limited design materials. Grass, for example, can support its own weight, resist strong wind loads, and recover after being...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Booth and panel discussion – The Lindau Nobel Laureate Meetings at the AAAS 2017 Annual Meeting

13.02.2017 | Event News

Complex Loading versus Hidden Reserves

10.02.2017 | Event News

International Conference on Crystal Growth in Freiburg

09.02.2017 | Event News

 
Latest News

New pop-up strategy inspired by cuts, not folds

27.02.2017 | Materials Sciences

Sandia uses confined nanoparticles to improve hydrogen storage materials performance

27.02.2017 | Interdisciplinary Research

Decoding the genome's cryptic language

27.02.2017 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>