Press releases

2019

 

Clean lungs thanks to laser process exhaustion

In sectors such as the automotive industry, components can be processed at extremely high speed using the laser remote process. However, this can result in harmful emissions which may cause lung damage. Scientists from the Dresden Fraunhofer Institute for Material and Beam Technology IWS have studied the issue as part of the IGF research project “CleanRemote”. They reduce particles and gases in the air by means of a suction device.

 

Waterproof thanks to rapid lasers

Fraunhofer engineers from Dresden have developed a new laser welding process employing a fast oscillating laser beam. This technology, known as "remoweld®FLEX", is suitable for particularly demanding processes – especially for components to be sealed media-tight against water and other undesirable environmental influences.

 

Additive machines discover superalloys

Scientists at the Fraunhofer Institute for Material and Beam Technology IWS in Dresden have developed innovative methods enabling more materials to be processed in additive manufacturing than ever before. For example, additive manufacturing systems could facilitate better future aircraft engines with lower fuel consumption.

 

Joining gun bonds metal and plastic within seconds

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.

2018

 

Additive Manufacturing and Laser Welding Solutions presented at IMTS Chicago 2018

The Fraunhofer IWS Dresden will present solutions for Additive Manufacturing and laser welding at IMTS Chicago 2018. The German engineers will show a rocket engine with aerospike nozzle for space travel, the "smart head" COAXwire 4.0 for laser build-up welding and the modular laser welding optics concept remoweld®FLEX together with Arnold Ravensburg.

 

Micro fishbones to stop car fuel thirst

Dresden Fraunhofer engineers are working on reducing the fuel consumption of cars by more than a tenth. They use ultra-short laser pulses to generate very fine and friction-reducing fishbone patterns in engines.

 

Lasers make the lotus effect on aircraft

Filigree engravings on external surfaces of aircraft are intended to ensure that airflow remains smooth and drag on the aircraft low. For this, engineers at the Fraunhofer IWS, the TU Dresden and Airbus have developed a laser process that produces textured surfaces at high throughput making surface contamination more difficult.

 

Joseph von Fraunhofer Prize 2018: Improved efficiency of aircraft engines

The Fraunhofer IWS has succeeded in increasing the stability of those aircraft engine parts which are subject to stress due to temperature. The IWS process helps to reduce kerosene consumption as well as CO2 emissions. In combination with further measures, significant cost savings result during flight operations.  

 

With low pressure to the lightweight aircraft

Engineers at the Fraunhofer-Institut für Werkstoff- und Strahltechnik IWS in Dresden have developed an innovative process in cooperation with industrial partners to weld and form modern lightweight parts for aircraft.

 

Coaxial wire cladding in the next generation

The next generation‘s laser wire processing optics "COAXwire" is in the starting blocks. A completely newly developed miniaturized version enables high-precision processing of complex components with fine wire. In a macro version, the head can be equipped with a hot-wire module.

 

Bonding without adhesive

The Fraunhofer IWS Dresden has developed a new process for joining materials with different properties. Thermal direct joining presses laser-structured metal with thermoplastic components and heats them locally. This causes the thermoplastic to melt, to penetrate into the structures and to adhere to the surface. A specially developed joining gun generates robust connections within seconds. The "HeatPressCool-Integrative" (HPCI) process is highly suitable for replacing complex adhesive processes.

 

Original remains original

Together with the company Erich Utsch AG scientists of the Fraunhofer IWS have developed a process for the protection of license plates for motor vehicles. The development is triggered by the fact that many of the established product protection concepts are either too inflexible or uneconomical.

2017

 

“FLUX-LMDR” intends to increase energy efficiency of transformers

The project “Technology for greater energy efficiency in distribution transformers” (FLUX-LMDR) was kicked off on 30  November 2017. Under the auspices of the Fraunhofer-Institut für Werkstoff- und Strahltechnik IWS Dresden, an alliance of five partners from science and industry will conduct research in laser processing of transformer sheets over the next three years. The application was approved by the Federal Ministry for Economy and Energy at the end of October. The Fraunhofer IWS will lead the technological development as well as take part in systems engineering.

 

futureAM – Next Generation Additive Manufacturing

On November 14th, 2017, the Fraunhofer focus project, futureAM, was launched in Aachen under the auspices of the Fraunhofer Institute for Laser Technology ILT. Six project partners – the Fraunhofer Institutes ILT, IWS, IWU, IGD and IFAM as well as the LZN Laser Zentrum Nord – have set themselves a clear goal: Over the next three years, they will work closely together to secure the prerequisites for significant technological leaps in additive manufacturing with metallic materials (metal AM).

 

Super-efficient – High-performance laser coated hydraulic cylinder rods

A higher laser beam cladding performance benefits Bosch Rexroth at the Dutch location Boxtel. The Fraunhofer-Institut für Werkstoff- und Strahltechnik IWS Dresden mutually optimized an industrial manufacturing process with the producer of drive and control engineering.

 

"MuReA" provides quick and large-scale laser applications

The Fraunhofer-Institut für Werkstoff- und Strahltechnik IWS developed the novel remote system concept (MuReA) for quick, flexible and efficient laser processing tasks. IWS scientists combined laser remote systems, spindle drives and high performance beam sources with each other. As a result, this novel laser system enables large-scale, flexible and quick processing tasks for materials such as aluminum, stainless steel as well as fiber reinforced polymers.

 

A new welding head – remoweld®FLEX – for high frequency laser material processing of difficult to weld materials

© Photo Fraunhofer IWS Dresden

Due to digitalized product development and cross-linked manufacturing cycles development periods have been radically shortened. Rapid product change requires from manufacturers and suppliers a high rate of flexibility, so that customized and cost-optimized solutions can be offered. For the development of new laser welding technologies individualized processes tailored for specific materials and products need to be combined with innovative hardware concepts.

2016

 

Joining technologies for electromobility

Within the framework of the joint project »BatCon«, funded by the Federal Ministry for Economic Affairs and Energy, Fraunhofer IWS scientists have developed novel property- and cost-optimized joining techniques for the fabrication of aluminum-copper cell joints over the past three years.
 

TAILORED JOINING – Joining technology experts focus their know-how in Dresden

Joining is the key challenge in production processes and often a significant cost factor. The knowledge and the selection of the appropriate procedure is therefore of the utmost importance. Within the framework of the 9th international laser symposium and the joining symposium “Tailored Joining” renowned experts will meet for an international exchange of experiences in Dresden on February, 22 - 24, 2016.

2015

 

Diode laser and wire – a strong team for laser build-up welding and additive manufacturing

At this year’s LASER World of PHOTONICS in Munich the Fraunhofer IWS Dresden and Laserline GmbH, Mülheim-Kärlich will, for the very first time, present the wire processing optics, which has been qualified for the application with a high power diode laser for three-dimensional build-up welding and additive manufacturing tasks.
 

Better welding with speedy laser mirrors

Silicon micromirrors can guide laser beams at extremely high speeds, allowing operators to dose heat input to workpieces with absolute precision. But to date they have not been robust enough to be used for laser cutting and welding. Now a Fraunhofer team has managed to develop fast, durable mirrors that are capable of performing challenging cutting and welding tasks.
 

New perspectives for laser beam welding of die-cast aluminum components

Scientists of the Fraunhofer IWS Dresden in cooperation with an industrial partner have developed a new technique for the welding of die-cast aluminum components and have managed to transfer it into series production. For the very first time, a weld joint, which is characterized by extremely low porosity and strongly reduced distortion, is generated with the help of brilliant laser radiation and high-frequency oscillation.
 

World record for laser surface patterning: 0.7 m²/min with micrometer resolution!

The Fraunhofer IWS Dresden, which develops modular laser systems for high-speed laser patterning, has now set a new world record in this field. For the first time, scientists succeeded in achieving an effective patterning speed of 0.7 m²/min while micropatterning a polymer surface.
 

Dr. Jens Standfuß takes over the management of the business unit “Joining“

With effect from January 1, 2015 Dr. Jens Standfuß heads the business unit “Joining”. He succeeds Prof. Dr. Berndt Brenner, who celebrated his 65th birthday in November 2014. Prof. Brenner will be contributing his expertise to support his colleagues in their scientific research in the future.