Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Joining gun bonds metal and plastic within seconds

30.01.2019

Scientists at the Fraunhofer Institute for Material and Beam Technology IWS in Dresden have developed a joining gun that creates a connection between metal and thermoplastic materials within seconds. This gun is of a modular design and can easily be integrated into the production process, for example by mounting on a robot arm in place of a spot welding gun. At the preview leading up to the Hanover Trade Fair on January 24, 2019 on the trade fair grounds in Hall 19, scientist Annett Klotzbach will be demonstrating the advantages of the joining gun.

The HeatPressCool-Integrative process HPCI


The joining gun bonds metal and plastic in seconds.

© Fraunhofer IWS

The connection of plastics and metals poses a challenge, due to the different physical properties of the two materials.

All conventional joining options, such as bonds using adhesives or rivets have their disadvantages: adhesives need time to harden, which delays further processing.

Plastics can be easily damaged during riveting. Furthermore, both adhesive bonding and riveting require additional materials which increases production costs.

The HeatPressCool-Integrative process, developed at the Fraunhofer IWS Dresden, is integrated into the joining gun enabling the direct and precise bonding between metal and plastic components in a matter of seconds.

During this process, the two materials are pressed together and the metal at the bonding point is subjected to targeted inductive heat. This causes the thermoplastic material to partially melt, which in turn directly forms a firm bond with the metal as the plastic solidifies.

More stable connection by pre-treatment of the metal

The Fraunhofer IWS researchers pretreat the metal with lasers to optimize the adhesion between metal and plastic to create anchoring structures.

"The special feature of this process is that we use laser ablation to drill relatively deeply into the metal, to a depth of up to a hundred micrometers, where the plastic can penetrate and then cool down, contract and form a secure fit in this structure. This generates a highly stable bond", says Annett Klotzbach.

Easy application in proven system technology

In order to integrate the joining gun into the existing system technology in manufacturing operations, it provides a modular structure. It can, for example, be mounted on a robot arm in place of a spot welding gun.

The joining gun can be applied wherever metal and plastics need to be precisely bonded, for instance in vehicle body construction in the automotive industry or for stainless steel panels in refrigerators or dishwashers.

Weitere Informationen:

https://www.fraunhofer.de/en/press/research-news/2019/january/joining-gun-bonds-...

Dipl.-Soz. Wiss. Markus Forytta | Fraunhofer-Institut für Werkstoff- und Strahltechnik IWS

More articles from Trade Fair News:

nachricht Light from a roll – hybrid OLED creates innovative and functional luminous surfaces
19.02.2019 | Fraunhofer-Institut für Organische Elektronik, Elektronenstrahl- und Plasmatechnik FEP

nachricht Medical device manufacturers from Europe and Asia are popular suppliers of components in the USA
19.02.2019 | IVAM Fachverband für Mikrotechnik

All articles from Trade Fair News >>>

The most recent press releases about innovation >>>

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

Im Focus: Light from a roll – hybrid OLED creates innovative and functional luminous surfaces

Up to now, OLEDs have been used exclusively as a novel lighting technology for use in luminaires and lamps. However, flexible organic technology can offer much more: as an active lighting surface, it can be combined with a wide variety of materials, not just to modify but to revolutionize the functionality and design of countless existing products. To exemplify this, the Fraunhofer FEP together with the company EMDE development of light GmbH will be presenting hybrid flexible OLEDs integrated into textile designs within the EU-funded project PI-SCALE for the first time at LOPEC (March 19-21, 2019 in Munich, Germany) as examples of some of the many possible applications.

The Fraunhofer FEP, a provider of research and development services in the field of organic electronics, has long been involved in the development of...

Im Focus: Regensburg physicists watch electron transfer in a single molecule

For the first time, an international team of scientists based in Regensburg, Germany, has recorded the orbitals of single molecules in different charge states in a novel type of microscopy. The research findings are published under the title “Mapping orbital changes upon electron transfer with tunneling microscopy on insulators” in the prestigious journal “Nature”.

The building blocks of matter surrounding us are atoms and molecules. The properties of that matter, however, are often not set by these building blocks...

Im Focus: University of Konstanz gains new insights into the recent development of the human immune system

Scientists at the University of Konstanz identify fierce competition between the human immune system and bacterial pathogens

Cell biologists from the University of Konstanz shed light on a recent evolutionary process in the human immune system and publish their findings in the...

Im Focus: Transformation through Light

Laser physicists have taken snapshots of carbon molecules C₆₀ showing how they transform in intense infrared light

When carbon molecules C₆₀ are exposed to an intense infrared light, they change their ball-like structure to a more elongated version. This has now been...

Im Focus: Famous “sandpile model” shown to move like a traveling sand dune

Researchers at IST Austria find new property of important physical model. Results published in PNAS

The so-called Abelian sandpile model has been studied by scientists for more than 30 years to better understand a physical phenomenon called self-organized...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Global Legal Hackathon at HAW Hamburg

11.02.2019 | Event News

The world of quantum chemistry meets in Heidelberg

30.01.2019 | Event News

Our digital society in 2040

16.01.2019 | Event News

 
Latest News

Terahertz wireless makes big strides in paving the way to technological singularity

19.02.2019 | Information Technology

Researchers find trigger that turns strep infections into flesh-eating disease

19.02.2019 | Health and Medicine

Light from a roll – hybrid OLED creates innovative and functional luminous surfaces

19.02.2019 | Trade Fair News

VideoLinks
Science & Research
Overview of more VideoLinks >>>