Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Precise laser drilling of CFRP components in large quantities

07.11.2016

In a new joint research project, four enterprises and the Laser Zentrum Hannover e.V. (LZH) aim at further developing the laser drilling of composites for series production in the aircraft industry. Their focus is on designing an efficient system and process technique that meets the demands of aviation.

Composites, such as carbon fiber reinforced plastics (CFRP), have a high potential for lightweight construction and are therefore already now widely used in aviation. These materials, however, have extraordinary properties, such as a low weight and high stability at the same time, but processing composites is quite complex. Here, mechanical processes lead to high tool wear and thus to quality problems.


Laser-drilled holes in an aircraft component made of CFRP.

LZH

Laser radiation instead of carbide drills

For aviation in particular, the drilling of CFRP has an enormous market potential. The aircraft manufacturers produce increasing quantities with a high number of drilled holes for riveted and screwed joints. This requires reliable, fast and cost-efficient processes to withstand international competition. For this purpose, laser beam drilling is an ideal alternative to conventional processes.

In the project „Laser Beam Drilling of Composites for Applications in Aviation” (LABOKOMP), the partners focus on the development of customized processing strategies using a new, high pulse laser beam source.

To design a process that suits industrial needs, a tailor-made system, handling and monitoring technique shall finally be made available to the users. Only thus, the highly precise and dynamic handling and processing of high-quality serial components can be achieved.

One clamping system for all component variants

Within the scope of the project, the small and medium-sized enterprises (SMEs) INVENT GmbH and KMS Technology Center GmbH as well as the large enterprises TRUMPF Laser GmbH and Premium AEROTEC GmbH develop automated clamping and positioning systems that include, among other things, an integrated vibration recognition and damping.

Unlike conventional separation processes, a single clamping system can be used for all component variants here. To provide a comprehensive entire process, the supply and exhaust of process gases and emissions as well as the cooling of the workpieces are optimized, too.

A tailor-made laser process control for more efficiency

Investigations and material tests with the aim to minimize the thermal stress on laser-drilled CFRP components, and at the same time increasing the efficiency through a tailor-made process control – these are the work priorities of the LZH experts in the Composites Group of the Production and Systems Department. Apart from the manufacturing of small components in large quantities, the novel process strategy shall be transferred to the assembly of large structures, too, in the future.

This project is sponsored by the German Federal Ministry of Education and Research (BMBF) within the scope of the „KMU-innovativ: Photonik“ initiative for a duration of three years.

Dr. Nadine Tinne | Laser Zentrum Hannover e.V.
Further information:
http://www.lzh.de/

More articles from Materials Sciences:

nachricht Breaking bad metals with neutrons
16.01.2018 | DOE/Argonne National Laboratory

nachricht White graphene makes ceramics multifunctional
16.01.2018 | Rice University

All articles from Materials Sciences >>>

The most recent press releases about innovation >>>

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

Im Focus: Scientists decipher key principle behind reaction of metalloenzymes

So-called pre-distorted states accelerate photochemical reactions too

What enables electrons to be transferred swiftly, for example during photosynthesis? An interdisciplinary team of researchers has worked out the details of how...

Im Focus: The first precise measurement of a single molecule's effective charge

For the first time, scientists have precisely measured the effective electrical charge of a single molecule in solution. This fundamental insight of an SNSF Professor could also pave the way for future medical diagnostics.

Electrical charge is one of the key properties that allows molecules to interact. Life itself depends on this phenomenon: many biological processes involve...

Im Focus: Paradigm shift in Paris: Encouraging an holistic view of laser machining

At the JEC World Composite Show in Paris in March 2018, the Fraunhofer Institute for Laser Technology ILT will be focusing on the latest trends and innovations in laser machining of composites. Among other things, researchers at the booth shared with the Aachen Center for Integrative Lightweight Production (AZL) will demonstrate how lasers can be used for joining, structuring, cutting and drilling composite materials.

No other industry has attracted as much public attention to composite materials as the automotive industry, which along with the aerospace industry is a driver...

Im Focus: Room-temperature multiferroic thin films and their properties

Scientists at Tokyo Institute of Technology (Tokyo Tech) and Tohoku University have developed high-quality GFO epitaxial films and systematically investigated their ferroelectric and ferromagnetic properties. They also demonstrated the room-temperature magnetocapacitance effects of these GFO thin films.

Multiferroic materials show magnetically driven ferroelectricity. They are attracting increasing attention because of their fascinating properties such as...

Im Focus: A thermometer for the oceans

Measurement of noble gases in Antarctic ice cores

The oceans are the largest global heat reservoir. As a result of man-made global warming, the temperature in the global climate system increases; around 90% of...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

10th International Symposium: “Advanced Battery Power – Kraftwerk Batterie” Münster, 10-11 April 2018

08.01.2018 | Event News

See, understand and experience the work of the future

11.12.2017 | Event News

Innovative strategies to tackle parasitic worms

08.12.2017 | Event News

 
Latest News

Polymers Based on Boron?

18.01.2018 | Life Sciences

Bioengineered soft microfibers improve T-cell production

18.01.2018 | Life Sciences

World’s oldest known oxygen oasis discovered

18.01.2018 | Earth Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>