Featured Research

from universities, journals, and other organizations

Airplane Riveting Improved With New Technology

Date:
September 8, 2008
Source:
Fraunhofer-Gesellschaft
Summary:
An aircraft is held together by hundreds of thousands of rivets. Fully automatic machines install rivet holes and rivets with precision in numerous materials. A new hybrid technology combines this mechanical joining technique with adhesive bonding.

The riveting machine was built by Brötje Automation Jaderberg (BAJ) to the specifications of the IFAM. BAJ is a global market leader in the sale of riveting machines and the associated handling techniques.
Credit: Copyright Fraunhofer IFAM

An aircraft is held together by hundreds of thousands of rivets. Fully automatic machines install rivet holes and rivets with precision in numerous materials. A new hybrid technology combines this mechanical joining technique with adhesive bonding.

Related Articles


The lighter an aircraft is, the less fuel it consumes. Given the need to cut carbon dioxide emissions, this is a key aspect of materials research. Aircraft manufacturers are therefore pinning their hopes on particularly lightweight construction materials. These include not only lightweight metals, but also fiber composite plastics, particularly carbon-fiber reinforced plastics (CFRPs). Whenever two CFRP components have to be joined together, this has so far been accomplished primarily by riveting.

Researchers at the Fraunhofer Institute for Manufacturing Technology and Applied Materials Research IFAM in Bremen are experts in adhesive techniques and plan to enlarge their expertise to include mechanical joining. At the Composites Europe trade fair in Essen from September 23 through 25, 2008, they will be presenting a state-of-the-art C-clamp riveting machine. This device enables the necessary rivet holes, complete with one- or two-part riveted bolts, to be installed accurately and automatically in compliance with aviation standards.

The IFAM researchers now intend to go a step further. “Rivet holes are a problem, particularly in CFRP structures,” explains Dr. Oliver Klapp of the IFAM. “They disturb the flow of forces in the CFRP structures and reduce the load-bearing capacity of the material.” The researchers are therefore planning to make use of adhesive bonding processes that are already employed for CFRP materials.

“But the aviation industry is not yet ready to rely exclusively on bonded components and assemblies,” says Klapp. This is why the engineers are exploring the potential of hybrid joining – a combination of riveting and a special bonding process. The advantages of hybrid joining are obvious: the CFRP materials are not riddled with so many rivet holes. The particularly high load-bearing capacity of these materials is more effectively brought to bear in the truest sense of the word, because bonding results in a more effective, all-over distribution of forces. The researchers are currently optimizing the parameters of the joining process.

“It’s true that riveting will not be eliminated from aircraft construction in the next several years,” says Klapp. But the aviation industry will soon be unable to manage without structural bonding of primary structures such as the airframe, the wings and the tail units.


Story Source:

The above story is based on materials provided by Fraunhofer-Gesellschaft. Note: Materials may be edited for content and length.


Cite This Page:

Fraunhofer-Gesellschaft. "Airplane Riveting Improved With New Technology." ScienceDaily. ScienceDaily, 8 September 2008. <www.sciencedaily.com/releases/2008/09/080908105402.htm>.
Fraunhofer-Gesellschaft. (2008, September 8). Airplane Riveting Improved With New Technology. ScienceDaily. Retrieved October 30, 2014 from www.sciencedaily.com/releases/2008/09/080908105402.htm
Fraunhofer-Gesellschaft. "Airplane Riveting Improved With New Technology." ScienceDaily. www.sciencedaily.com/releases/2008/09/080908105402.htm (accessed October 30, 2014).

Share This



More Matter & Energy News

Thursday, October 30, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Mind-Controlled Prosthetic Arm Restores Amputee Dexterity

Mind-Controlled Prosthetic Arm Restores Amputee Dexterity

Reuters - Innovations Video Online (Oct. 29, 2014) — A Swedish amputee who became the first person to ever receive a brain controlled prosthetic arm is able to manipulate and handle delicate objects with an unprecedented level of dexterity. The device is connected directly to his bone, nerves and muscles, giving him the ability to control it with his thoughts. Matthew Stock reports. Video provided by Reuters
Powered by NewsLook.com
Robots Get Funky on the Dance Floor

Robots Get Funky on the Dance Floor

AP (Oct. 29, 2014) — Dancing, spinning and fighting robots are showing off their agility at "Robocomp" in Krakow. (Oct. 29) Video provided by AP
Powered by NewsLook.com
Saharan Solar Project to Power Europe

Saharan Solar Project to Power Europe

Reuters - Business Video Online (Oct. 29, 2014) — A solar energy project in the Tunisian Sahara aims to generate enough clean energy by 2018 to power two million European homes. Matt Stock reports. Video provided by Reuters
Powered by NewsLook.com
Lowe's Testing Robot Sales Assistants in California Store

Lowe's Testing Robot Sales Assistants in California Store

Buzz60 (Oct. 29, 2014) — Lowe’s is testing out what it’s describing as a robotic shopping assistant in one of its Orchard Supply Hardware Stores in California. Jen Markham explains. Video provided by Buzz60
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:

Strange & Offbeat Stories

 

Space & Time

Matter & Energy

Computers & Math

In Other News

... from NewsDaily.com

Science News

Health News

    Environment News

    Technology News



    Save/Print:
    Share:  

    Free Subscriptions


    Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

    Get Social & Mobile


    Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

    Have Feedback?


    Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
    Mobile iPhone Android Web
    Follow Facebook Twitter Google+
    Subscribe RSS Feeds Email Newsletters
    Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins