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Brake Calipers and Wheels? Now from a 3D printer!

Brake Calipers and Wheels? Now from a 3D printer!

Volkswagen has opened a new and highly modern 3D printing center at the Autostadt. This makes Wolfsburg a central site for metallic 3D printing. But what is the Group using 3D printing for?

A tour of the 3-D printing center:
in the presence of the management and Works Council, Oliver Pohl, Head of Additive Manufacturing at Volkswagen (third from left), presents the new printers, production technologies and workplaces. Center: Dr. Andreas Tostmann, Member of the Board of Management for Volkswagen Brand Production

With a new generation of printers, the Volkswagen brand’s Toolmaking unit at the Wolfsburg site will soon be able to go into 3D series production. The new generation were developed in cooperation with the printer manufacturer HP and the component manufacturer GKN Powder Metallurgy. At the opening ceremony for the 3D printing center, the Group presented a metallic production process known as binder jetting that sets new standards in speed, flexibility and automation. The Autostadt now has the Group’s most modern 3D printing technology.

3D printing at Volkswagen Toolmaking

Expansion of the facility from 460 to 3,100 square meters means one thing above all for the Volkswagen brand – a new working space where toolmakers, developers, designers and researchers can work together in an interdisciplinary context in even more agile ways. And thanks to the modular, expandable structure of the 3D printer, many manual steps in work processes can be eliminated. On the one hand, automated processes will enable Volkswagen Toolmaking to make its production processes more efficient and cost-effective. On the other hand, the process will also allow a larger number of 3D materials to be produced more rapidly. At present, Wolfsburg’s Toolmaking unit is still researching and building prototypes and tools. But toolmaking specialists in Wolfsburg are also working on lightweight construction concepts that stabilize the steel and therefore also the components. Plans also call for 3D printing technology to be used in series production at the site.

Printed parts for a racing car

When developing the I.D. R Pikes Peak electric racing car, Volkswagen engineers used a model for which a large number of individual parts had been produced in 3D printing

Three-dimensional printing will play a key role in the future, and this can already be seen in the construction of the race car I.D. R Pikes Peak electric. In development work for wind tunnel tests, Volkswagen engineers used a model that had a variety of individual components made by 3D printing. These parts have also been used in test drives and even in finished race cars – in the form of small components such as cable mounts and switches.

Printed 3D wheels for a moon rover

The 3D wheels of the moon rover Audi quattro-lunar

But Volkswagen is not the only brand in the Group to use metallic 3D printing. An Audi team at a 3D printing center in Ingolstadt is also studying ways to further advance the technology for both its brand and the Group. Spare-part production also plays a major role at the site. Original replacement parts that are rarely needed, such as water connecting pipes for the W12 engine, have been produced here with 3D printing using processes such as laser melting. And the moon rover, the Audi lunar quattro, was also made in part with 3D printed materials. Its wheels, for example, are made of aluminum components produced at Audi’s metal 3D printing facilities in Ingolstadt.

3D spare parts for vintage cars

Porsche uses the 3D printing process to manufacture individual parts for classic cars such as the Porsche 959

The Porsche brand is also using 3D printers to make exceedingly uncommon components that are only needed in small quantities. All parts made by 3D printing processes have to meet the highest technical and optical requirements for maximum fidelity to the original. One example is the release lever for the clutch in the Porsche 959, which is no longer available. This gray cast-iron part has to meet very high quality requirements and is seldom needed due to the low production number of the super sports car itself.

The world's largest 3D printed titanium pressure functional component ever produced on one of the most powerful brake test benches on the market! This is what it looks like when Bugatti prepares its first printed titanium brake caliper for series production.

Further information can be found on http://www.volkswagenag.com and on Twitter: http://www.twitter.com/vwgroup

Note in accordance with Directive 1999/94/EC in its currently applicable version: Further information on official fuel consumption figures and the official specific CO2 emissions of new passenger cars can be found in the EU guide "Information on the fuel consumption, CO2 emissions and energy consumption of new cars", which is available free of charge at all sales dealerships, from DAT Deutsche Automobil Treuhand GmbH, Hellmuth-Hirth-Straße 1, D-73760 Ostfildern, Germany and at www.dat.de.

Testing the world's first 3D printed brake caliper

The world's first 3D brake caliper for a super sports car

Bugatti is another member of the Volkswagen Group that is instrumental in advancing innovative future-oriented technologies. It has developed the world’s first brake caliper made by additive manufacturing, namely an 8-piston monobloc model. The French super sports car brand is also the first series producer to use titanium and at the same time produced the largest brake caliper in the automotive industry. Bugatti’s newly developed 3D printed brake caliper uses an alloy that appears primarily in aeronautic and aviation applications and features especially high strength and performance properties. Compared to previous aluminum components, which are installed in cars like the Bugatti Chiron, the printed titanium brake caliper could save considerable weight and would also be more robust.

The Volkswagen Group plans to continue its efforts in 3D printing technology in the future. The goal is to establish 3D printing in series production.

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