Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

SLM: New machine design and exposure concept facilitates scalable productivity and building space

13.11.2014

A this year’s EuroMold, which takes place in Frankfurt from November 25-28, 2014, the Fraunhofer Institute for Laser Technology ILT will for the first time present its new SLM machine design and exposure concept. This solution makes it easy to scale productivity and building space at significantly lower cost than previous machine designs allowed.

Additive manufacturing via selective laser melting (SLM) has been successfully used to make prototypes and small-series production runs of predominantly compact components for a number of years now.


Laboratory system: Processing head for scalable SLM machine designs.

Fraunhofer ILT, Aachen,

But users want the ability to increase productivity via higher build-up rates, and would like more flexibility in terms of available building space. Beyond this, it remains vitally important for series production on an industrial scale to have robust process engineering with reproducible component quality and the ability to monitor processes.

Experts are currently pursuing several approaches to increasing productivity and building space. Until now, productivity has mainly been boosted by using higher laser power in combination with optics systems that allow operators to adjust the beam diameter. Larger building spaces are currently achieved through the use of a movable single optical system or multiple parallel beam sources and scanner systems.

Systematic advantages of the new design

Scientists at Fraunhofer ILT used funding provided by the Cluster of Excellence »Integrative Production Technology for High-Wage Countries« to develop, design and build a new machine concept at their site in Aachen. Their design dispenses with scanner systems altogether and instead relies on a printer head featuring several individually controllable diode lasers that is moved using linear axes.

The advantage of multi-spot processing is that it means the system’s build-up rate can be increased significantly by adding a virtually unlimited number of beam sources – with no need for modifications to the system design, exposure control software or process parameters. The new plant design also makes it possible to increase building space simply by extending the travel lengths of the axis system and without changing the optical system.

In addition, the processing head has a local shielding gas flow system that guarantees a constant stream of shielding gas at each processing point, regardless of the size of the installation space. This is essential for achieving position-independent, reproducible component quality. The new design also allows process monitoring systems to be incorporated into the production system. These monitoring systems can also be set up in much simpler form than current coaxial systems allow.

Fraunhofer ILT at EuroMold 2014

Experts from Fraunhofer ILT will use a laboratory demonstrator to present their new SLM machine concept at the joint Fraunhofer booth C66 in Hall 11.

Contact

M.Sc. Florian Eibl
Rapid Manufacturing Group
Telephone +49 241 8906-193
florian.eibl@ilt.fraunhofer.de

Dr. Wilhelm Meiners
Head of Rapid Manufacturing Group
Telephone +49 241 8906-301
wilhelm.meiners@ilt.fraunhofer.de

Fraunhofer Institute for Laser Technology ILT
Steinbachstraße 15
52074 Aachen, Germany


Weitere Informationen:

http://www.ilt.fraunhofer.de

Petra Nolis | Fraunhofer-Institut

More articles from Trade Fair News:

nachricht IVAM Product Market „High-tech for Medical Devices“ at COMPAMED 2017
18.10.2017 | IVAM Fachverband für Mikrotechnik

nachricht Fiber Optic Collimation C-Lenses will be Exhibited by FISBA at OFC 2017
14.03.2017 | FISBA AG

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: Neutron star merger directly observed for the first time

University of Maryland researchers contribute to historic detection of gravitational waves and light created by event

On August 17, 2017, at 12:41:04 UTC, scientists made the first direct observation of a merger between two neutron stars--the dense, collapsed cores that remain...

Im Focus: Breaking: the first light from two neutron stars merging

Seven new papers describe the first-ever detection of light from a gravitational wave source. The event, caused by two neutron stars colliding and merging together, was dubbed GW170817 because it sent ripples through space-time that reached Earth on 2017 August 17. Around the world, hundreds of excited astronomers mobilized quickly and were able to observe the event using numerous telescopes, providing a wealth of new data.

Previous detections of gravitational waves have all involved the merger of two black holes, a feat that won the 2017 Nobel Prize in Physics earlier this month....

Im Focus: Smart sensors for efficient processes

Material defects in end products can quickly result in failures in many areas of industry, and have a massive impact on the safe use of their products. This is why, in the field of quality assurance, intelligent, nondestructive sensor systems play a key role. They allow testing components and parts in a rapid and cost-efficient manner without destroying the actual product or changing its surface. Experts from the Fraunhofer IZFP in Saarbrücken will be presenting two exhibits at the Blechexpo in Stuttgart from 7–10 November 2017 that allow fast, reliable, and automated characterization of materials and detection of defects (Hall 5, Booth 5306).

When quality testing uses time-consuming destructive test methods, it can result in enormous costs due to damaging or destroying the products. And given that...

Im Focus: Cold molecules on collision course

Using a new cooling technique MPQ scientists succeed at observing collisions in a dense beam of cold and slow dipolar molecules.

How do chemical reactions proceed at extremely low temperatures? The answer requires the investigation of molecular samples that are cold, dense, and slow at...

Im Focus: Shrinking the proton again!

Scientists from the Max Planck Institute of Quantum Optics, using high precision laser spectroscopy of atomic hydrogen, confirm the surprisingly small value of the proton radius determined from muonic hydrogen.

It was one of the breakthroughs of the year 2010: Laser spectroscopy of muonic hydrogen resulted in a value for the proton charge radius that was significantly...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

ASEAN Member States discuss the future role of renewable energy

17.10.2017 | Event News

World Health Summit 2017: International experts set the course for the future of Global Health

10.10.2017 | Event News

Climate Engineering Conference 2017 Opens in Berlin

10.10.2017 | Event News

 
Latest News

Osaka university researchers make the slipperiest surfaces adhesive

18.10.2017 | Materials Sciences

Space radiation won't stop NASA's human exploration

18.10.2017 | Physics and Astronomy

Los Alamos researchers and supercomputers help interpret the latest LIGO findings

18.10.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>