Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Laser-assisted joining of plastics and metal

15.10.2008
Plastic is increasingly being used as a construction material, which poses the problem of joining dissimilar material classes. Plastic-metal hybrid components could be manufactured using a variety of techniques. The LIFTEC® laser-assisted joining process developed at the Fraunhofer Institute for Laser Technology ILT offers an efficient solution.

The newly developed LIFTEC® joining process (patent pending) works by heating a component, or a part of it, by laser radiation which passes through the plastic joining partner. The component is pressed onto the plastic part under mechanical pressure, then heated, and finally pushed into the plastic by further mechanical pressure.

Provided that a suitable component geometry has been selected, a solid, positive bond is formed after cooling. It is essential to the process that the component should have a higher melting point than the plastic joining partner. Suitable materials include metals, ceramics and temperature-resistant plastics.

Another approach is being investigated in the context of the Cluster of Excellence "Integrative Production Technology for High-Wage Countries" at RWTH Aachen University. In this approach, researchers are examining several irradiation methods, materials, beam sources and pre-treatment methods. A first series of tests is being carried out to determine the influence of structural density on the joining process. This is being done by producing surface structures with dotted, lined and checkered patterns in stainless steel samples using Nd:YAG laser light.

Subsequently, the structured samples are bonded to the transparent plastic samples by diode laser light in a con-tour or quasi-simultaneous joining process. The resulting bonds are very strong and generally very promising.

Contacts at the Fraunhofer ILT
If you have any questions regarding this topic, please feel free to contact our experts:
Fraunhofer-Institut für Lasertechnik ILT
Aachen, Germany
Dr. Arnold Gillner
Head of the micro technology department
Phone +49 241 8906-148
arnold.gillner@ilt.fraunhofer.de
Dipl.-Ing. Jens Holtkamp
Micro technology department
Phone +49 241 8906-273
jens.holtkamp@ilt.fraunhofer.de
Dipl.-Ing. Andreas Roesner
Micro technology department
Phone +49 241 8906-158
andreas.roesner@ilt.fraunhofer.de
For any other questions or finding special experts please contact:
Dipl.-Phys. Axel Bauer
Head of marketing and communications
Fraunhofer-Institut für Lasertechnik ILT
Aachen, Germany
Phone: ++49/241/8906-194
Fax: ++49/241/8906-121
axel.bauer@ilt.fraunhofer.de

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

More articles from Process Engineering:

nachricht A water treatment breakthrough, inspired by a sea creature
27.11.2018 | Yale University

nachricht Research project AutoAdd: Paving the way for additive manufacturing for the automotive industry
22.11.2018 | Fraunhofer-Institut für Lasertechnik ILT

All articles from Process Engineering >>>

The most recent press releases about innovation >>>

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

Im Focus: Data use draining your battery? Tiny device to speed up memory while also saving power

The more objects we make "smart," from watches to entire buildings, the greater the need for these devices to store and retrieve massive amounts of data quickly without consuming too much power.

Millions of new memory cells could be part of a computer chip and provide that speed and energy savings, thanks to the discovery of a previously unobserved...

Im Focus: An energy-efficient way to stay warm: Sew high-tech heating patches to your clothes

Personal patches could reduce energy waste in buildings, Rutgers-led study says

What if, instead of turning up the thermostat, you could warm up with high-tech, flexible patches sewn into your clothes - while significantly reducing your...

Im Focus: Lethal combination: Drug cocktail turns off the juice to cancer cells

A widely used diabetes medication combined with an antihypertensive drug specifically inhibits tumor growth – this was discovered by researchers from the University of Basel’s Biozentrum two years ago. In a follow-up study, recently published in “Cell Reports”, the scientists report that this drug cocktail induces cancer cell death by switching off their energy supply.

The widely used anti-diabetes drug metformin not only reduces blood sugar but also has an anti-cancer effect. However, the metformin dose commonly used in the...

Im Focus: New Foldable Drone Flies through Narrow Holes in Rescue Missions

A research team from the University of Zurich has developed a new drone that can retract its propeller arms in flight and make itself small to fit through narrow gaps and holes. This is particularly useful when searching for victims of natural disasters.

Inspecting a damaged building after an earthquake or during a fire is exactly the kind of job that human rescuers would like drones to do for them. A flying...

Im Focus: Topological material switched off and on for the first time

Key advance for future topological transistors

Over the last decade, there has been much excitement about the discovery, recognised by the Nobel Prize in Physics only two years ago, that there are two types...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

ICTM Conference 2019: Digitization emerges as an engineering trend for turbomachinery construction

12.12.2018 | Event News

New Plastics Economy Investor Forum - Meeting Point for Innovations

10.12.2018 | Event News

EGU 2019 meeting: Media registration now open

06.12.2018 | Event News

 
Latest News

Data use draining your battery? Tiny device to speed up memory while also saving power

14.12.2018 | Power and Electrical Engineering

Tangled magnetic fields power cosmic particle accelerators

14.12.2018 | Physics and Astronomy

In search of missing worlds, Hubble finds a fast evaporating exoplanet

14.12.2018 | Physics and Astronomy

VideoLinks
Science & Research
Overview of more VideoLinks >>>